JP2012013580A - System and program for simultaneously measuring shape, diameter and temperature of particle and droplet - Google Patents

Abstract

A system for simultaneously measuring the shape / diameter and temperature of particles or droplets to obtain basic data for grasping not only solid fuel particles such as pulverized coal but also liquid fuel droplets in a combustion field. I will provide a.
SOLUTION: A particle P based on a shadow formed by shielding a laser beam L1, L2 with a particle P in a flame B passing through a measurement region formed at an intersection of two laser beams L1, L2. The shape is photographed through the shadow Doppler optical system I, and a high-speed camera 5 that transmits an image signal representing the shape of the particle P, and a specific wavelength by the particle P in the measurement region obtained through the Cassegrain optical system II. This is a period during which all of the particles P are captured in the imaging screen of the high-speed camera 5 by processing the image signal and the spectroscope 8 for transmitting the emission signals respectively representing the two types of light intensities I _λ1 and I _λ2. And a personal computer 6 for detecting the measurable period and calculating the temperature of the particles P based on the principle of a two-color thermometer based on the emission signal corresponding to the measurable period.
[Selection] Figure 1

Description

  The present invention relates to a system and program for simultaneously measuring the shape, diameter, and temperature of particles and droplets, and particularly to a program for measuring the shape, diameter, and temperature of solid fuel particles or liquid fuel droplets in a combustion field at the same time. It is useful to apply.

Although reserves many supply stability is high coal is widely used as a fuel for thermal power generation, for effective utilization of emission suppression and resources environmental contaminants when their use, development of low NO _x combustion technology There is a need for further advancement of combustion technology.

Currently, the most commonly used coal utilization technology is a pulverized coal combustion method in which coal is pulverized to an average diameter of about 40 μm, conveyed by air, and burned by a burner. In such pulverized coal combustion method, since the process of pulverized coal particles are mixed and combusted with air in the turbulence greatly affects the emissions and combustion efficiency of the NO _x, precisely the behavior of pulverized coal particles at elevated temperatures of turbulence It is extremely important to grasp this. Here, although the average diameter of the pulverized coal particles is about 40 μm, the pulverized coal supplied to the furnace actually has a wide distribution with a diameter of several μm to about 100 μm. On the other hand, the temperature rise of pulverized coal increases as the diameter decreases. Therefore, in order to accurately grasp the behavior of the pulverized coal particles in the high-temperature turbulent flow field, it is important to grasp the relationship between the diameter of the pulverized coal particles and the temperature. That is, pulverized coal particles degree of size reduction and emissions of NO _x to know has become what extent the temperature, becomes very important in achieving improvement of combustion efficiency.

  However, at present, there is no system for simultaneously measuring the shape / diameter and temperature of particles such as pulverized coal, and only Patent Document 1 exists as an apparatus for evaluating the ignition and combustibility in relation to the combustion of coal. It is.

  It is necessary to measure the shape / diameter and temperature at the same time not only when solid fuel particles such as pulverized coal are used as an object but also when liquid fuel droplets are used as an object. Is done.

Japanese Patent No. 2927154

  In view of the above prior art, the present invention obtains basic data for grasping not only particles and droplets in a combustion field, such as particles of pulverized coal, fuel droplets, but generally particles and droplets. Therefore, it is an object of the present invention to provide a simultaneous measurement system and program for the shape / diameter and temperature of particles and droplets.

  The first aspect of the present invention that achieves the above object is based on a shadow formed by shielding the laser beam with particles or droplets that pass through a measurement region formed at the intersection of two laser beams. An imaging means for imaging the shape of the particles or droplets via the first optical system and sending an image signal representing the shape of the particles or droplets, and the measurement obtained via the second optical system Temperature measuring means for transmitting light emission signals each representing light intensity of a plurality of specific wavelengths by particles or droplets in the region, and processing the image signal so that all of the particles or droplets are displayed on the imaging screen of the imaging means An arithmetic processing unit that detects a measurable period, which is a captured period, and calculates the temperature of the particle or droplet based on the light emission signal corresponding to the measurable period based on the principle of a two-color thermometer In simultaneous measurement system between the particle and droplet shape and diameter and temperature and having and.

  According to a second aspect of the present invention, in the simultaneous measurement system for the shape / diameter and temperature of particles and droplets described in the first aspect, the second optical system is a Cassegrain optical system. It is in the simultaneous measurement system of the shape / diameter and temperature of particles and droplets.

  According to a third aspect of the present invention, in the simultaneous measurement system for the shape / diameter and temperature of particles and droplets described in the first or second aspect, the measurable period is the two-dimensional plane of the imaging screen. The luminance of the image signal in each cell is detected by dividing into grid-like cells, and all the cells on each of the four edge portions become high-luminance portions, and at the same time, the cells inside the respective edge portions on the imaging screen. The present invention is a simultaneous measurement system for the shape and diameter of particles and droplets and temperature, characterized by having a period in which a low-luminance portion exists.

  According to a fourth aspect of the present invention, in the simultaneous measurement system of the shape / diameter and temperature of the particles and droplets described in the third aspect, all the cells at the respective edge portions of the four sides are high-luminance portions, At the same time, even in a period in which low brightness portions exist in the cells inside each edge portion on the imaging screen, when a plurality of low brightness portions exist in the inner cells as discontinuous regions, the measurement is performed. It is in the simultaneous measurement system of the shape / diameter and temperature of particles and droplets, which is excluded from the possible period.

  According to a fifth aspect of the present invention, a process of reading the image signal and the light emission signal for one step, and all of the particles or droplets are captured in the captured image of the photographing unit based on the read image signal. In the determination process for determining whether or not the measurement period is a measurable period, and in the measurement possible period as a result of the determination process, the shape / diameter of the particle or droplet is calculated and the emission signal is calculated. A particle and droplet shape / diameter and temperature simultaneous measurement program characterized by causing an electronic computer to perform calculation processing for calculating the temperature of the particle or droplet based on the principle of a two-color thermometer. .

  According to the present invention, in the imaging means for imaging the measurement area formed at the intersection of the two laser beams, all the images of particles or droplets passing through the measurement area are captured in the imaging screen of the imaging means. Since the temperature of the particles or droplets is measured by the temperature measurement means during the measurable period, which is a period during which the particles or droplets are measured, the shape / diameter and temperature of the particles or droplets can be measured simultaneously.

  As a result, the behavior of the particles or droplets in the combustion field or the like can be accurately grasped. This makes it possible to easily and accurately obtain basic data useful for, for example, performing a numerical simulation of combustion of solid fuel particles or liquid fuel droplets in a combustion field.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure regarding embodiment of this invention, (a) is a block diagram which shows the simultaneous measurement system of the shape and diameter of particle | grains and temperature which concern on embodiment, (b) is an example of the shape of the particle | grains to be measured It is explanatory drawing shown typically. It is explanatory drawing which shows the relationship between the structural example of the optical system in the system shown in FIG. 1, and a measurement and light reception area | region. It is explanatory drawing for demonstrating the measurement principle of the shape and diameter of particle | grains, and temperature in the system shown in FIG. It is a flowchart which shows the flow of the simultaneous measurement of the shape and diameter of particle | grains and temperature which concern on embodiment of this invention. It is explanatory drawing which shows the particle image discrimination method of the single particle in embodiment of this invention. It is explanatory drawing which shows the particle | grain discrimination method in case several particle | grains exist in an imaging region in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail. In addition, the same number is attached | subjected to the same part in FIGS. 1-6, and the overlapping description is abbreviate | omitted. Moreover, this form is a case where the particle | grains in a pulverized coal flame are made into a measuring object.

  FIG. 1A is a block diagram showing a simultaneous measurement system of particle shape / diameter and temperature according to an embodiment of the present invention. As shown in the figure, in this embodiment, the particle shape / diameter measurement system is configured using a shadow Doppler optical system. In this shadow Doppler optical system I, a laser beam emitted from a laser light source (not shown) is separated into two parallel laser beams L1 and L2 having the same intensity by a beam splitter (not shown). L1 and L2 are crossed in the flame B of the combustion field via the condenser lens 1. The flame B at this time is formed by combustion of solid fuel (for example, pulverized coal), and the intersection of the laser beams L1 and L2 in the flame B becomes a measurement region. The laser beams L1 and L2 after crossing are collimated by the collimator lens 2, then condensed by the condenser lens 3, and incident on the high-speed camera 5 that is an image pickup unit via the objective lens 4. Thus, the high-speed camera 5 takes an image of the measurement area formed at the intersection in the flame B. Therefore, when the particle accompanying combustion exists in the measurement region in the flame B, the shape of the particle P as shown in FIG. The high-speed camera 5 sends an image signal representing the shape of the photographed particle P to a personal computer (hereinafter referred to as a personal computer) 6 that is an arithmetic processing means. The personal computer 6 measures the shape and diameter of the particle P by processing the image signal of the particle P based on a predetermined processing procedure. A specific processing procedure associated with such measurement will be described in detail later.

On the other hand, the temperature measurement system that measures the temperature of the particles P is configured using the Cassegrain optical system II that is optimal for detecting local light emission of the particles P in the combustion field. The local emission data in the measurement region of the flame B detected by the Cassegrain optical system II is input to the spectroscope 8 through the optical fiber 7. The spectroscope 8 detects the light intensities I _λ1 and I _λ2 of two specific wavelengths λ ₁ and λ _{2 from} the light emission data, and sends the light emission signals representing the light intensities I _λ1 and I _λ2 to the personal computer 6. input. The personal computer 6 calculates the local temperature in the measurement region by performing the following equation (1) based on the principle of a so-called two-color thermometer. The equation (1) represents the ratio of the light intensities I _λ1 and I _λ2 of the wavelengths λ ₁ and λ ₂ , but the light intensity is constant or known except for the temperature T in the equation (1). By measuring I _λ1 and I _λ2 , the temperature T of the particles P can be obtained by calculation.

  FIG. 2 is an explanatory diagram showing the relationship between the configuration example of the optical system and the measurement / light-receiving area in the system shown in FIG. FIGS. 9A, 9B, and 9C are views of the positional relationship between the shadow Doppler optical system I and the Cassegrain optical system II shown in FIG. FIG. 2A shows a case where the Cassegrain optical system II is made to face at right angles to the measurement area at the intersection formed by the laser beams L1 and L2. In this case, as shown in FIG. 2D, a light receiving region R by the circular Cassegrain optical system II is formed at the center of the measurement region M of the elliptical shadow Doppler optical system I. FIG. 2B shows the case where the Cassegrain optical system II is inclined with respect to the perpendicular direction with respect to the measurement region at the intersection formed by the laser beams L1 and L2. In this case, as shown in FIG. 2 (e), a light receiving region R is formed by an elliptical Cassegrain optical system II whose major axis slightly extends in the left-right direction at the center of the measurement region M of the shadow Doppler optical system I. Is done. FIG. 2C shows the case where the Cassegrain optical system II is made parallel to the measurement region at the intersection formed by the laser beams L1 and L2. In this case, as shown in FIG. 2 (f), an ellipse whose major axis extends further in the left-right direction than in the case of FIG. 2 (e) with respect to the measurement region M of the elliptical shadow Doppler optical system I. A light receiving region R is formed by the Cassegrain optical system II having the shape. That is, as the Cassegrain optical system II is tilted from the state shown in FIG. 2A toward the state shown in FIG. 2C with respect to the shadow Doppler optical system I, a light receiving region formed in the measurement region M The area of R increases gradually. As a result, the largest number of particles P can be captured in the light receiving region R in the case shown in FIG. Therefore, when it is desired to increase the spatial resolution and obtain accurate data on the shape / diameter or temperature of the particles P, the arrangement shown in FIG. 2A is preferable. For example, the shape / diameter of the particles P The arrangement shown in FIG. 2C is preferable when it is desired to obtain a lot of data on how the temperature changes.

  For example, the measurement region M is a very small region where α is about 800 μm and β is about 100 to 200 μm, and the light receiving region R is a more local region included in the measurement region M.

FIG. 3 is an explanatory diagram for explaining the measurement principle of the shape / diameter and temperature of particles in the system shown in FIG. As shown in the figure, the local temperature is determined by the ratio of the light intensities I _λ1 and I _λ2 within a range where the image of the particle P is not missing. More specifically, as shown in FIG. 3A, consider a case where the particles P in the flame B have moved from the bottom to the top of the light receiving region R in the measurement region M. In this case, the time-series positional relationship of the particles P with respect to the imaging screen 5A of the high-speed camera 5 is as shown in FIG. That is, at time t ₀ , the particles P outside the imaging area of the imaging screen 5A partially enter the imaging area of the imaging screen 5A at time t ₁ and completely enter at time t ₂ until time t _3. this state is continued, further part at time t ₄ is out of the imaging region, completely at time t ₅ would go out the imaging region of the imaging screen 5A. The relationship between the time t at this time and the intensity I of light emitted from the particles P measured via the spectroscope 8 is as shown in FIG. As is clear from FIG. 3C, a light emission signal from the entire particle P is obtained from time t ₂ to time t ₃ , and this period is a period T _L in which the temperature of the particle P can be measured. I understand.

Further, by processing the image signal representing the shape of the particle P in the measurable period _TL photographed by the high-speed camera 5 with the personal computer 6, the shape and diameter can be measured. By associating the image signal with the temperature data of the particle P calculated based on the principle of the two-color thermometer, the shape / diameter and temperature of the predetermined particle P can be simultaneously measured.

  The simultaneous measurement of the shape / diameter and temperature of the particle P is performed in the personal computer 6 by the procedure as shown in FIG. FIG. 4 is a flowchart showing a flow of simultaneous measurement of the shape / diameter and temperature of the particles P according to the embodiment of the present invention.

  In this embodiment, an image signal picked up by the high-speed camera 5 at a constant sampling cycle is stored in advance in a storage device (not shown) of the personal computer 6 and this stored data is processed. Therefore, the image signal and the light emission signal for one step are read out simultaneously with the start of data analysis (see step ST1).

Next, the image of the particle P based on the image signal is determined (see step ST2). That is, to determine the presence or absence of chipping of the particles P in the image in the imaging plane 5A, the entire imaging screen 5A of the shape of the particles P as the time t ₂ ~t ₃ when there is no missing (see FIG. 3 (b) If it is included), the shape / diameter of the particle P is calculated (see step ST3), and the temperature of the particle P at that time is also calculated. (Refer to step ST4). Thereafter, the respective calculation results are associated with each other, stored in the storage device as the shape / diameter and temperature data of the particles P, and displayed on the display unit 6A of the personal computer 6 (see step ST5).

When it is determined in the process of step 1 that the particle P is not detected or a chip is present even if it is detected (in the case of time t _{0 to} t ₁ or time t _{4 to} t ₅ in FIG. 3B). The presence or absence of the image signal and light emission signal in the next step is determined (see step ST6).

  If there is no data for the next step, the data analysis is terminated (see step ST7). If there is data, the process proceeds to the next step (see step ST8), and the processes of steps ST1 to ST6 are repeated.

  Specifically, the particle image determination processing based on the image signal shown in step ST2 is performed in a manner as shown in FIG. 5 or FIG. Specific processing procedures relating to the particle image determination processing according to the present embodiment will be described in detail with respect to three typical modes.

  FIG. 5 is an explanatory view showing a particle image discrimination method for a single particle P, and FIG. In both figures, each cell of the imaging screen 5A is schematically shown as one rectangle divided in a lattice shape, and the positional relationship between the particles P and the imaging screen 5A is shown.

Here, the luminance of each cell is assumed as follows.
1) When all the areas of a specific cell have not detected the particle P, the luminance of the cell is set to 100.

2) When all regions of a specific cell are occupied by the particles P, the luminance of the cell is set to 0 (shown as a black portion in FIG. 5).

3) The luminance of the cell corresponding to the contour portion of the particle P exceeds 0 and is less than 100 (shown as a gray portion in FIG. 5).

<Single particle discrimination method I>
In this example, a single particle P passes through the imaging screen 5A from below the imaging screen 5A and escapes upward.

a) Since the luminance of all the cells is 100 at the position where the particle P is shown in FIG. 5A, it is determined that the particle P is not detected and measurement is impossible.

b) At the position where the particle P is shown in FIG. 5B, the luminance of the cells of some of the edges is gray, so the particle P is detected, but the particle P is present at the edge, and the entire shape Since it is not always taken in, it is determined that measurement is impossible.

c) At the position where the particle P is shown in FIG. 5C, the luminance of some of the cells is 0 or gray, so the particle P is detected, but the particle P is present at the edge, and the entire shape Since it is not always taken in, it is determined that measurement is impossible.

d) At the position where the particle P is shown in FIG. 5D, the luminance of some of the cells is 0 or gray, so the particle P is detected, but the particle P is present at the edge, and the entire shape Since it is not always taken in, it is determined that measurement is impossible.

e) At the position where the particle P is shown in FIG. 5E, the luminance of some of the cells is 0 or gray, so the particle P is detected. In addition, since the luminance of all the cells in the edge portion is 100, all the shapes are captured. Therefore, the shape and diameter of the particles are measured based on the image signal in such a state. Here, the shape can be approximately obtained by the shape of the gray region in FIG. The diameter can be obtained by calculation based on the number of cells whose luminance is 0 or gray, for example. More specifically, for example, the number of cells whose luminance is 0 is simply added, and the gray cells are determined for each cell by what percentage of the luminance is 100, and the ratio is used as a coefficient for each cell. And the total value of the two is multiplied by the cell diameter (known).

f) At the position where the particle P is shown in FIG. 5F, the luminance of some cells is 0 or gray, so the particle P is detected. In addition, as in FIG. 5E, the luminance of all the cells in the edge portion is 100, so that all the shapes are captured. Therefore, the shape and diameter of the particles P are measured based on the image signal in such a state.

g) When the particle P is at the position shown in FIG. 5G, the luminance of some of the cells is 0 or gray, so the particle P is detected, but the particle P is present at the edge, and the entire shape Since it is not always taken in, it is determined that measurement is impossible.

h) At the position where the particle P is shown in FIG. 5 (h), the luminance of some cells is 0 or gray, so the particle P is detected, but the luminance of some cells of the edge is 0 or gray. Yes, the particle P is present at the edge, and not all shapes are captured, so it is determined that measurement is not possible.

i) Since the brightness of all the cells is 100 at the position where the particle P is shown in FIG. 5 (i), the particle P is not detected and it is determined that measurement is impossible.

<Single particle identification method II>
In this example, the particles P move at right angles to the paper surface of FIG. In this case, the particle P changes to (II-1) a) no particle P, b) the state shown in FIG. 5 (e) or FIG. There are cases where (II-2) a) no particles P, b) the state shown in FIG. 5C or FIG. 5G, and c) no particles P change.

  Among these, in the case shown in (II-1), in the state shown in FIG. 5 (e) or FIG. 5 (f), the brightness of some cells becomes 0 or gray, so that the particle P is detected. Since the brightness of all the cells in the edge portion is 100, the shape and diameter of the particle P are measured based on the image signal in this state.

  On the other hand, in the case shown in (II-2), in the state shown in FIG. 5C or FIG. 5G, the luminance of some cells becomes 0 or gray, so the particles P are detected. Since the brightness of the cell at the edge of the part is 0 or gray and not all shapes are captured, it is determined that measurement is not possible.

<Method for distinguishing multiple particles>
In this example, a plurality of particles P pass through the imaging screen 5A from below the imaging screen 5A and escape upward.

a) Since the brightness of all the cells is 100 at the positions where the particles P1 and P2 are shown in FIG. 6A, the particles P1 and P2 are not detected and are determined to be unmeasurable.

b) At the positions where the particles P1 and P2 are shown in FIG. 6B, the luminance of some of the cells is 0 or gray, so the particles P1 are detected, but the particles P1 are present at the edges, Since the shape is not necessarily captured, it is determined that measurement is impossible.

c) When the particles P1 and P2 are at the positions shown in FIG. 6C, the luminance of some cells is 0 or gray, so the particle P1 is detected. Moreover, since the luminance of all the cells in the edge portion is 100, the entire shape of the particle P1 is captured. Therefore, the shape and diameter of the particle P1 are measured based on the image signal in this case.

d) At the position where the particles P1 and P2 are shown in FIG. 6D, the luminance of some of the cells is 0 or gray, so the particle P1 is detected. However, because of the particle P2, cells having a luminance exceeding 0 and less than 100 exist in a discontinuous state. Therefore, in this case, it is determined that measurement is impossible. This is because the temperatures of the particles P1 and P2 may be different, and it is not determined which one should be used for temperature measurement.

e) At the position where the particles P1 and P2 are shown in FIG. 6E, the luminance of some of the cells is 0 or gray, so the particle P1 is detected. However, because of the particle P2, cells having a luminance exceeding 0 and less than 100 exist in a discontinuous state. Therefore, in this case, it is determined that measurement is not possible as in FIG. When the temperature is calculated based on the principle of the two-color thermometer in such a case as the measurable period _TL , if the temperatures of the particles P1 and P2 are different, the average temperature of the two is calculated, and the particle P1 or particle having the measured shape This is because the temperature corresponding to P2 cannot be measured accurately.

f) At the position where the particles P1 and P2 are shown in FIG. 6F, the luminance of some of the cells is 0 or gray, so the particle P2 is detected. In addition, since the luminance of all the cells in the edge portion is 100, the entire shape of the particle P2 is captured as in FIG. 6C. Therefore, the shape and diameter of the particle P2 are measured based on the image signal in this case.

g) At the positions where the particles P1 and P2 are shown in FIG. 6 (g), the luminance of the cells of some of the edges is gray, so the particles P2 are detected, but the particles P2 are present at the edges, Since the shape is not necessarily captured, it is determined that measurement is impossible.

  In addition, although the said embodiment demonstrated the case where the shape and diameter and temperature of particle | grains P, P1, and P2 in a combustion field were measured simultaneously, it is not necessary to limit to particle | grains P, P1, and P2 in a combustion field, and combustion. It can also be a drop in the field. More generally, the present invention can also be applied to the case of simultaneously measuring the shape / diameter and temperature of particles or droplets. For example, particulate matter in the exhaust gas can be measured. The point is that the high-speed camera 5 can shoot the shape at the intersection of the laser beams L1 and L2 via the shadow Doppler optical system I.

  In the above embodiment, the image signal picked up by the high-speed camera 5 at a constant sampling cycle is stored in advance in a storage device (not shown) of the personal computer 6 and the stored data is processed. However, it is not limited to this. If the time required for information processing for one step in the personal computer 6 is short, the image signal captured by the high-speed camera 5 can be processed in real time.

  The present invention can be suitably applied in the industrial field in which the shape / diameter and temperature in a combustion field of solid fuel particles or liquid fuel droplets are simultaneously measured to perform numerical simulation of the behavior of the particles or droplets.

I Shadow Doppler optical system
II Cassegrain optical system L1, L2 Laser light B Flame P, P1, P2 Particles λ ₁ , λ ₂ Wavelength I _λ1 , I _λ2 Light intensity M Measurement region R Light receiving region _TL Measurement period 1, 3 Condensing lens 2 Collimating lens 4 Objective Lens 5 High Speed Camera 5A Imaging Screen 6 Personal Computer 7 Optical Fiber 8 Spectroscope

Claims (5)

The shape of the particle or droplet based on the shadow formed when the laser beam is blocked by the particle or droplet passing through the measurement region formed at the intersection of the two laser beams is changed to the first optical system. Photographing means for sending an image signal representing the shape of the particles or droplets,
Temperature measuring means for sending emission signals each representing light intensities of a plurality of specific wavelengths by particles or droplets in the measurement region obtained via a second optical system;
The image signal is processed to detect a measurable period in which all of the particles or droplets are captured in the imaging screen of the imaging unit, and based on the light emission signal corresponding to the measurable period. A system for simultaneously measuring the shape / diameter and temperature of particles and droplets, comprising an arithmetic processing means for calculating the temperature of the particles or droplets according to the principle of a color thermometer. In the simultaneous measurement system of the shape / diameter and temperature of the particles and droplets according to claim 1,
The second optical system is a Cassegrain optical system, and is a simultaneous measurement system for the shape / diameter and temperature of particles and droplets. In the simultaneous measurement system of the shape / diameter and temperature of the particles and droplets according to claim 1 or claim 2,
In the measurable period, the imaging screen of the two-dimensional plane is divided into grid-like cells to detect the luminance of the image signal in each cell, and all the cells on each of the four edges become high-luminance portions, A simultaneous measurement system for the shape / diameter and temperature of particles and droplets, characterized in that a period in which a low-luminance portion exists in a cell inside each edge portion on the imaging screen at the same time. In the simultaneous measurement system of the shape / diameter and temperature of the particles and droplets according to claim 3,
Even in a period in which all the cells on each edge part of the four sides become high-luminance parts and at the same time a low-luminance part exists in the cells inside each edge part on the imaging screen, a plurality of internal cells A system for simultaneously measuring the shape / diameter and temperature of particles and droplets, wherein a low-luminance portion is present as a discontinuous region, excluded from the measurable period. A process of reading the image signal and the light emission signal for one step, and a measurable period in which all of the particles or droplets are captured in the captured image of the imaging unit based on the read image signal. In the determination process for determining whether or not there is a measurement possible period as a result of the determination process, the shape / diameter of the particle or droplet is calculated, and the principle of the two-color thermometer is calculated based on the emission signal. A program for simultaneously measuring the shape / diameter and temperature of particles and droplets, which causes an electronic computer to perform calculation processing for calculating the temperature of the particles or droplets.