JP2000176270A - Vibration device that performs agitation mixing, fluid transfer, etc. - Google Patents

Abstract

(57) [Problem] To provide a vibrating device for performing vibration agitation, fluid conveyance, and the like that can efficiently perform an operation by always automatically controlling an optimal operation state. SOLUTION: A vibration generating unit including a vibration motor 6 and the like,
A drive control circuit for the vibration generator, a vibration shaft 13 for transmitting the output of the vibration generator, and a vibration blade 14 attached to the vibration shaft 13
A vibrating device for stirring and mixing the mixture to be stirred 5 and transporting a fluid to be conveyed by the vibration of the vibrating blades 14, and an electrical means for detecting the energized state of the vibrating blades 14 during operation. The drive control circuit of the vibration generating unit is controlled by a detection signal from the electric means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating device for efficiently performing stirring and mixing and fluid conveyance by an automatic control system, and more particularly, to a vibrating blade which is urged by a vibration generating device to form a liquid or powder. And a vibrating device such as a vibrating fluid mixing device for transporting a fluid.

[0002]

2. Description of the Related Art Stir mixers, plating machines, washing machines and the like have already been commercialized as applied products of a vibration device, but there are many technically unresolved elements. Mainly manual operation that relies on experience and can, such as based on visual observation. FIG. 8 shows, for example, Japanese Patent Application Laid-Open No. Hei 6-31212.
FIG. 4 is a configuration diagram illustrating an example of a conventional vibration-stirring / mixing device disclosed in Japanese Patent Application Laid-Open No. 4 (1994) -208. In this vibration stirring and mixing device,
When the vibration frequency applied to the vibration motor 6 from the inverter 16 is set to, for example, 10 Hz to 60 Hz and the amplitude is set to 2 mm to 30 mm and the vibration blade 14 is vibrated via the vibration shaft 13 connected to the vibration motor 6, the vibration in the container 1 is reduced. Stirring mixture 5
Then, a flow accompanied by pressure oscillation occurs, and the mixture 5 to be stirred is stirred and mixed. Then, the driver sets the mixture 5 to be stirred.
The resonance state is determined while observing the flow state, for example, the rising state of the surface, and the frequency adjustment knob 18 of the inverter 16 is controlled by experience.

[0003] The technique of transmitting vibration to the vibrating blades 14 and stirring and mixing the liquid and powder can also be applied to the transfer of fluid, etc., and transmits vibration to the vibrating blades in air to blow air. For example, Japanese Patent Application Laid-Open No. 6-159300
No. 6,086,045.

[0004]

According to the vibrating stirrer / mixer constructed as described above, when physical properties change in the stirrer / mixing process or the like, the trouble of the driver setting the frequency every time is reduced. there were. Further, if this is forgotten, problems such as an increase in the time required for the process, an increase in power consumption, and a decrease in the mechanical life of the vibrating blades and the device occur.

[0005] In the above oscillating fluid conveying device,
No mention is made of the optimal vibration frequency. However, if vibration and blowing are not performed at the optimum vibration frequency, the amplitude of the tip of the vibrating blade is small, and as a result, the amount of blow is small, and the device must be large or the vibration on the vibration side must be large. However, there were problems such as that the vibration frequency was set too high and the required energy was increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a vibration-stirring / mixing device, a vibration-fluid-transporting device, and the like, which can automatically control an optimal operation state and operate efficiently. The purpose of the present invention is to obtain a vibration device. More specifically, the input frequency of the vibrating motor, and therefore the output frequency of the inverter, is automatically adjusted so that the amplitude of the tip of the vibrating blade is always maintained optimally regardless of changes in the physical properties of the mixture to be stirred and the fluid to be conveyed. It is an object of the present invention to obtain a vibrating device having a control method capable of performing stirring and mixing, fluid conveyance, and the like.

[0007]

According to the present invention, there is provided a vibration device for performing stirring and mixing, fluid conveyance, and the like according to the present invention, which transmits a vibration generator, a drive control circuit of the vibration generator, and an output of the vibration generator. A vibrating device that has a vibrating shaft and a vibrating blade attached to the vibrating shaft and performs stirring and mixing of the mixture to be stirred and transport of a fluid to be conveyed by vibrating the vibrating blade. Is provided, and a drive control circuit of the vibration generating unit is controlled by a detection signal from the electric means.

Further, as an electric means for detecting the energized state of the vibrating blade during operation, a change in pressure amplitude in the mixture to be stirred or the fluid to be conveyed is used. Further, as an electric means for detecting the energized state of the vibrating blade during operation, a change in input current or a change in input power of the vibration motor is used.

A change in pressure amplitude, a change in input current or a change in input power with respect to a change in vibration frequency of the vibrating blade is detected, and the vibration motor is operated near the maximum value of the pressure amplitude, input current or input power. Further, a change in the vibration frequency of the vibrating blade and a change in the pressure amplitude, a change in the input current or a change in the input power corresponding thereto are detected, and the change in the pressure amplitude, the change in the input current or the change in the input power is detected. Operate the vibration motor near zero.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION When a vibrating blade of a vibrating stirrer / mixer is vibrated, a flow accompanied by pressure vibration is generated in a mixture to be stirred in a container, and stirrer / mixing is performed. This mixing technology
Like the fan blade part, it uses the amplitude of the tip of the vibrating blade, and is optimized by mechanical factors such as blade shape, plate thickness, and material, and physical properties such as the density and viscosity of the mixture to be stirred. When a vibration frequency region exists and the amplitude of the tip portion with respect to the frequency is measured, resonance characteristics are remarkably observed between the two.

According to the present invention, the behavior of the tip portion of the vibrating blade is visualized and analyzed to clarify that the amplitude forms the basis of vibration and flow, and a signal for indirectly detecting the amplitude is found. Driving at maximum amplitude, i.e. paving the way for automation of optimal driving. The inventors of the present invention, in the vibration stirring mixing device, the amplitude of the tip of the vibrating blade is maximized, that is, in the state where the amplitude of the vibration is maximized, the vibration and flow state of the mixture to be stirred are maximized,
It was confirmed by a visualization experiment that the stirring and mixing power to this became the maximum.

At this time, the pressure oscillation amplitude value of the mixture to be stirred,
Alternatively, it has been found that the input current value or input power value of the vibration motor exhibits a peak value near the maximum point of the amplitude at the tip of the vibration blade. Accordingly, as the signal, the pressure amplitude of the pressure amplitude sensor installed in the mixture to be stirred, the slope of the curve of the input current or the input power of the vibration motor with respect to the change in the driving frequency, and the absolute value thereof may be used in some cases. Or only the absolute value can be used.

The above phenomenon is not unique to the vibrating stirrer / mixer alone, but is also true of a vibrating fluid transporting device that transports a fluid using the amplitude of a vibrating blade. In the present vibration device, by using the pressure vibration amplitude value, the input current value or the input power value of the vibration motor, regardless of the nature, amount, etc. of the mixture to be stirred or the mixture to be conveyed or the object to be conveyed by the vibrating blade, This realizes a control system that automatically operates at the maximum amplitude point of the vibrating blade. That is, an electric device for detecting the energized state of the vibrating blade is provided, the vibration frequency of the vibration generating device is controlled, and a vibrating device for efficiently performing stirring and mixing, fluid conveyance, and the like is obtained.

[First Embodiment] FIG. 1 is a block diagram of a first embodiment of the present invention, and shows a vibration stirring and mixing apparatus of an automatic control system. Reference numeral 1 denotes a container provided with a flange 2 and reference numeral 3 denotes a support gantry disposed on the upper portion of the container 1. The support gantry 3 is fixed to the flange 2 of the container 1 via a spacer 4 by a fastening bolt 5 a. Reference numeral 5 denotes a liquid or powder mixture to be stirred in the container 1.

Reference numeral 6 denotes a vibration motor, and reference numeral 7 denotes a vibration motor base which supports the vibration motor 6 on the support base 3. The vibration motor base 7 includes a main body mounting base 8 that fixes the vibration motor 6 and slidably supports the vibration motor 6 in a vertical direction, and a base plate 9 that is positioned below the main body mounting base 8 and fixed on the support base 3.
And a lower end thereof is fixed substantially vertically to the base plate 9 with a fastening bolt 10, and a through hole 8 of the main body mounting base 8 is provided near the upper end.
a guide shaft 11 which penetrates through a and supports the main body mounting table 7 so as to be able to move up and down, prevents excessive displacement in the lateral direction, and is interposed on the guide shaft 11 for absorbing vibration to the container 1. A vibration absorbing spring 12 that urges the main body mounting base 8 upward.

Reference numeral 13 denotes a vibration shaft, the upper end of which is connected to the vibration motor 6 and penetrates through the base plate 9 and the support base 3 of the vibration motor base 7 and hangs down in the container 1. Numeral 14 denotes a vibrating blade fixed to the vibrating shaft 13 via a vibrating plate fixing bracket 15 and has a shape such as a round shape, a rectangular shape, or a polygonal shape, and is attached in one or more stages in the axial direction of the vibrating shaft 13. In this way, the exciting force of the vibration motor 6 is transmitted to the vibrating blade 14 through the vibrating shaft 13, causing the mixture 5 to be stirred in the container 1 to generate a flow accompanied by pressure vibration, thereby performing stirring and mixing. is there.

16 is an inverter, 17 is an inverter 16
A display 18 for setting the output frequency of the inverter 16, a frequency adjustment knob 18 for adjusting the output frequency of the inverter 16 to an arbitrary value, and 19 an automatic manual operation switching device. 20 is a power plug, 21 is a power cord connecting the inverter 16 and the power plug 20, and 22 is the inverter 16 and the vibration motor 6.
Is a motor input code.

Reference numeral 23 denotes a signal processing device, and 24 denotes an inverter 1
6 is connected to the signal processing device 23 to supply power to the signal processing device 23.
And an external control signal line connecting the signal processing device 23 with the external control signal line.
26 is a pressure amplitude measurement sensor inserted into the mixture 5 to be stirred, and 27 is a pressure amplitude measurement sensor 26 and a signal processing device 23.
Are connected to the sensor signal line.

FIG. 2 is a diagram showing an example of an output signal waveform measured by the pressure amplitude measuring sensor 26, in which (a) is an output waveform in a vibrating stirrer / mixer, and (b) is a propeller measured for comparison. 4 shows an output waveform in a stirring and mixing device. As shown in FIG. 2A, in the vibration stirring and mixing apparatus, when the frequency of the inverter 16 is f, a pressure fluctuation having an amplitude of ΔP is observed at a cycle of 1 / f. It is proportional to the amplitude.

FIG. 3 shows the driving frequency fHz of the inverter 16.
In the diagram showing the relationship between the amplitude ΔP and the amplitude ΔPmmHg, the amplitude ΔP draws a resonance curve with respect to the sweep change of the drive frequency f of the inverter 16, and shows, for example, the peak value ΔP _{2 of} ΔP at the frequency f ₂ . In the present embodiment,
Δ (ΔP) / Δf, that is, the gradient of the curve shown in FIG. 3 is obtained by calculation, a frequency f corresponding to a value having a zero gradient is obtained, and the inverter 16 is operated at this frequency f.

The operation of the first embodiment configured as described above will be described with reference to the flowchart of FIG. 4. Automatic control of the vibrating stirrer / mixer is as follows. When the power plug 20 shown in FIG. 1 is connected to a predetermined commercial power supply, the inverter 16 and the signal processing device 23 are energized and become movable (step ST-1). The automatic operation switch 19 is set to the automatic operation side to start the automatic operation (step ST-2), and the counter n for the number of repetitions of the operation is set to 0.
(Step ST-3).

The signal processor 23 transmits a command signal having a sufficiently low frequency f ₀ , for example, f ₁ in FIG.
It is supplied to the inverter 16 through 5, to operate the inverter 16 in the vibration frequency f ₀ = f ₁ (step ST-
4). The pressure amplitude Δ of the pressure amplitude measurement sensor 26 at this time
Measured P _0, is stored (step ST-5). next,
The counter n number of iterations of calculation and n = 1 (step ST-6), the vibration frequency f ₁ is increased to f ₀ + Δf (step ST -7), the pressure amplitude [Delta] P ₁ of the pressure amplitude sensor 26 at this time Measure and store (step ST-
8).

From these values, Δ (ΔP) / Δf, that is, the slope of the curve in FIG. 3 is obtained by calculation. Here, this value is examined whether smaller or not than a sufficiently small value epsilon (step ST-9), smaller, determines the oscillation frequency f ₁ to f _n (Step ST-10), the process ends ,
Perform driving by the vibration frequency f _n (Step ST-1
1).

On the other hand, if the gradient Δ (ΔP ₁ ) / Δf is larger than the sufficiently small value ε, the process returns to step ST-6, and the same processing is performed until Δ (ΔP _n ) / Δf becomes smaller than ε. repeat. When Δ (ΔP _n ) / Δf becomes smaller than ε in step ST-9 with respect to the n-th repetition, the vibration frequency is determined to be f _n (step ST-10), and the processing is terminated. the performing operation in the f _n (step ST-11).

As shown in the above flowchart, in the first embodiment, Δ (ΔP) / Δf, that is, the gradient of the curve in FIG. 3 is obtained by calculation. In the vicinity of the frequency f ₁ at the start of operation, the slope is positive. This operation, for example, in 0.5Hz or 1Hz intervals, performed to large values of the frequency f, the frequency f of the gradient corresponds to a value of zero, i.e., the frequency f ₂ in FIG. 3 determined in this frequency f _2, The inverter 16 is operated.

The value of ΔP of the pressure amplitude measuring sensor 26 is shown in FIG.
In the case of deviation from ΔP ₂ , automatic adjustment is performed as follows. That is, when the gradient as the frequency f ₁ in FIG. 3 is shifted in the positive region, the a f + Delta] f as, determine the zero point of the gradient, whereas, as in the frequency f _3, the slope is negative region If it is shifted to f, Δ−f is determined, and the zero point of the gradient is obtained.

Next, in order to switch from automatic operation to manual operation, the automatic manual operation switch 19 may be set from automatic to manual. In the above description, the control in the vibration stirring and mixing device has been described, but the control can be similarly performed in the vibration fluid transfer device and the like (the same applies to the following embodiments). In the above description, when the value of the pressure amplitude value ΔP is small and control is impossible, a sensor is provided near the tip of the vibrating blade, and the dynamic pressure or flow velocity near the tip of the vibrating blade is measured. Control may be performed.

According to the first embodiment, for example, the resonance curve between the frequency f and the pressure amplitude ΔP is as shown in FIG. 3, and therefore, the calculation of the zero slope point is easy. Therefore, regardless of the change in physical properties of the mixture to be stirred, etc.
The input frequency of the vibration motor 6, and thus the output frequency of the inverter 16, can be automatically adjusted so that the amplitude of the tip of the vibrating blade 14 is always kept optimal. In this way, automatic operation became possible, so labor saving in processes such as stirring and mixing and fluid conveyance, energy savings through more efficient operation,
It is possible to realize an improvement in the economics of the operation of the apparatus, such as an improvement in reliability by avoiding excessive operation.

[Second Embodiment] In the first embodiment, in a vibrating stirrer or the like, the slope of the curve shown in FIG. 3 is obtained by calculation, and a frequency f corresponding to a value of zero is obtained. To drive the inverter 16. On the other hand, in the second embodiment, the absolute value of the pressure amplitude ΔP shown in FIG. 3 is used.

That is, the vibration frequency f shown in FIG. 3 is changed, and the frequency of the inverter 1
Drive 6 That is, operation is performed at a frequency at which the value of ΔP is greater than a certain value. Other configurations and operations are substantially the same as those described in the first embodiment, and thus description thereof is omitted. The method using the absolute value of the pressure amplitude ΔP may be used together with the method described in the first embodiment. According to the second embodiment, for example, FIG.
In the vicinity of the frequency f ₁ point of the above, no erroneous determination is made that the gradient is zero due to noise or the like.

[Third Embodiment] FIG. 5 is a configuration diagram of a third embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. In the third embodiment, an input current sensor of the vibration motor 6 is used instead of the pressure amplitude measurement sensor 26 shown in the first embodiment. Reference numeral 23 denotes a signal processing device, and reference numeral 24 denotes a power supply line for connecting the inverter 16 and the signal processing device 23 to supply power to the signal processing device 23. An external control signal line 25 connects the inverter 16 and the signal processing device 23. 2
8, a current sensor; 29, a motor input cord for connecting the inverter 16 and the vibration motor 6 via the current sensor 28;
Reference numeral 30 denotes a sensor signal line that connects the current sensor 28 and the signal processing device 23.

FIG. 6 is a diagram showing the relationship between the input current IA of the vibration motor 6 and the drive frequency fHz of the inverter 16. Also in this case, similarly to the output waveform of the pressure amplitude measurement sensor 26 shown in the first embodiment, the amplitude of the tip of the vibrating blade 14 and the input current I of the vibrating motor 6 are in a proportional relationship, and the amplitude of the tip of the vibrating blade 14 is in the maximum point f _2, and also shows the peak input current I ₂ of the vibration motor 6.

In the third embodiment, the input current sensor 28 of the vibration motor 6 is used in place of the pressure amplitude measurement sensor 26 shown in the first embodiment. However, the control method is based on both resonance curves. Therefore, the same method as in the first embodiment is used. In this way, ΔI / Δf, that is, the gradient of the curve in FIG. 6 is obtained by the calculation, and the frequency f corresponding to the value of the zero gradient is obtained, and the inverter 16 is operated at this frequency f. Other configurations and operations are the same as those described in the first embodiment, and a description thereof will not be repeated.

According to the third embodiment, the sharpness of the resonance curve depends on the pressure amplitude measurement sensor 26 shown in the first embodiment.
However, the input current sensor 28 has an advantage that it can be installed outside the container 1, and is excellent in terms of reliability of the device.
The efficiency of the inverter 16 is usually as high as 90% or more, and the input current of the inverter 16 is detected.
Can be used instead of the input current.

Fourth Embodiment In the third embodiment, the input current sensor 28 of the vibration motor 6 is used to operate the inverter 16 at a frequency f corresponding to a value of ΔI / Δf of zero. In the fourth embodiment, the absolute value of the input current I is used. That is, the oscillation frequency f shown in FIG. 6 is changed, and the inverter 16 is operated at the frequency of the maximum value of the absolute value of the input current I. Other configurations and operations are substantially the same as those described in the second embodiment, and a description thereof will not be repeated.

[Fifth Embodiment] In the third embodiment, the inverter 16 is operated at the frequency f corresponding to the value of ΔI / Δf of zero using the input current sensor 28 of the vibration motor 6. In the fifth embodiment, the input power of the vibration motor 6 is used and the frequency f corresponding to a value of ΔP / Δf of zero is used.
In this case, the inverter is operated.

FIG. 7 shows the input power PW of the vibration motor 2 and
FIG. 3 is a diagram showing a relationship between the driving frequency of the inverter 16 and fHz. Also in this case, similarly to the output waveform of the pressure amplitude measurement sensor 26 shown in the first embodiment, the amplitude at the tip of the vibrating blade 14 and the input power P of the vibrating motor 6 are in a proportional relationship.
In the maximum point f ₂ of the amplitude of the vibrating blade 14 tip, the vibration motor 6
Also shows a peak. Therefore, the input power P can be used instead of the input current I of the vibration motor 6. Other configurations and operations are substantially the same as those described in the first embodiment, and thus description thereof is omitted.

[Embodiment 6] In Embodiment 5, ΔP
Inverter 16 at a frequency f corresponding to a value of / Δf of zero
However, in the sixth embodiment, the absolute value of the input power is used. That is, the oscillation frequency f shown in FIG. 7 is changed, and the inverter 16 is operated at the frequency of the maximum absolute value of the input power P. Other configurations, operations, and effects are substantially the same as those described in the second embodiment, and a description thereof will not be repeated.

[Embodiment 7] As a detection signal for driving while maintaining the amplitude of the tip of the vibrating blade 14 at the maximum value,
In Embodiments 1 and 2, the pressure amplitude Δ in the mixture 5 to be stirred
In the third and fourth embodiments, the input current I of the vibration motor 6 is used. In the fifth and sixth embodiments, the input power P of the vibration motor 6 is used.
P, input current I, and input power P are used in combination with two or more detection signals. Other configurations, operations, and effects of the seventh embodiment are described in the first to seventh embodiments.
6, the description is omitted.

[0040]

As is apparent from the above description, the vibration device according to the present invention for performing stirring and mixing, transferring the fluid, and the like, includes a vibration generation unit including a vibration motor, a drive control circuit for the vibration generation unit, and a vibration generation unit. A vibrating device having a vibrating shaft for transmitting the output of the vibrator and a vibrating blade mounted on the vibrating shaft, for performing agitation and mixing of the mixture to be agitated, transport of a fluid to be conveyed, and the like by vibrating the vibrating blade. An electric means for detecting the energized state of the blade is provided, and the drive control circuit of the vibration generating unit is controlled by a detection signal from the electric means, so that the physical properties of the mixture to be stirred, the fluid to be conveyed, etc. Irrespective of the change, the input frequency of the vibration motor, and thus the output frequency of the inverter, can be automatically adjusted so that the amplitude of the tip of the vibration blade is always kept optimal. As a result of the automatic operation performed in this way, it is possible to realize an improvement in economical efficiency in the operation of the apparatus, such as labor saving in the stirring and mixing process, energy saving by increasing the efficiency of the operation, and improving reliability by avoiding excessive operation.

Further, as the electric means for detecting the energized state of the vibrating blade during operation, a change in pressure amplitude in the mixture to be stirred or the fluid to be conveyed is used, so that a resonance curve excellent in sharpness is obtained. be able to. Furthermore, as the electric means for detecting the energized state of the vibrating blade during operation, the input current change or input power change of the vibration motor is used, so that the input current sensor can be installed outside the water tank, and the reliability of the device can be improved. Can be enhanced.

Further, a change in pressure amplitude, a change in input current or a change in input power with respect to a change in vibration frequency of the vibrating blade is detected, and the vibration motor is operated near the maximum value of the pressure amplitude, input current or input power. Automatically adjust the input frequency of the vibration motor, and therefore the output frequency of the inverter, regardless of changes in the physical properties of the mixture to be stirred, the fluid to be conveyed, etc., so that the amplitude of the tip of the vibration blade is always kept optimal. be able to.

Further, a change in the vibration frequency of the vibrating blade,
A change in the pressure amplitude, a change in the input current, or a change in the input power corresponding thereto is detected, and the vibration motor is operated when the change in the pressure amplitude, the change in the input current, or the change in the input power is close to zero. As a result, it is easy to calculate the zero point of the gradient, and automatically adjust the input frequency of the vibration motor, and therefore the output frequency of the inverter, regardless of changes in the physical properties of the mixture to be stirred or the fluid to be conveyed. Thus, the amplitude of the tip of the vibrating blade can always be kept optimal.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a first embodiment of the present invention.

FIG. 2 is a diagram showing an output waveform of the first embodiment and an output waveform of a propeller stirring device.

FIG. 3 is a diagram showing a relationship between a drive frequency and a pressure amplitude of the inverter according to the first embodiment.

FIG. 4 is a flowchart for explaining the operation of the first embodiment.

FIG. 5 is a configuration diagram of a third embodiment of the present invention.

FIG. 6 is a diagram illustrating a relationship between an input current of a vibration motor and a drive frequency of an inverter according to Embodiments 3 and 4 of the present invention.

FIG. 7 is a diagram showing a relationship between input power of a vibration motor and drive frequency of an inverter according to the fifth and sixth embodiments of the present invention.

FIG. 8 is a configuration diagram illustrating an example of a conventional vibration stirring and mixing apparatus.

[Explanation of symbols]

5 mixture to be stirred, 6 vibration motor, 13 vibration axis, 1
4 vibrating blades, 16 inverters, 23 signal processing devices,
26 pressure amplitude measurement sensor, 28 input current sensor.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: All Doi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Corporation (72) Inventor Yukio Hayashi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F term in Ryo Denki Co., Ltd. (reference) 4G036 AB04 4G068 AA01 AA07 AB11 AB22 AC20 AD50 AF40

Claims (5)

[Claims] A vibration generating unit including a vibration motor, a drive control circuit for the vibration generating unit, a vibration shaft transmitting an output of the vibration generation unit, a vibration blade attached to the vibration shaft, and the like;
In a vibration device for stirring and mixing a mixture to be stirred and transporting a fluid to be conveyed by vibration of the vibrating blade, an electric means for detecting an energized state of the vibrating blade during operation is provided, and detection from the electric means is performed. A vibration device for performing agitation mixing, fluid conveyance, and the like, wherein a drive control circuit of the vibration generation unit is controlled by a signal. 2. The stirring and mixing or fluid as claimed in claim 1, wherein a change in pressure amplitude in the mixture to be stirred or the fluid to be transferred is used as an electrical means for detecting the biasing state of the vibrating blade during operation. Vibration device for transporting. 3. The stirring / mixing, fluid conveyance, and the like according to claim 1, wherein a change in input current or a change in input power of the vibration motor is used as an electrical means for detecting an energized state of the vibration blade during operation. Vibrating device. 4. Detecting a change in pressure amplitude, a change in input current or a change in input power with respect to a change in vibration frequency of the vibrating blade,
4. The vibrating device according to claim 1, wherein the vibrating motor is operated near the maximum value of the pressure amplitude, the input current or the input power. 5. A change in the vibration frequency of the vibrating blade and a change in the pressure amplitude, a change in the input current or a change in the input power corresponding thereto are detected, and the change in the pressure amplitude, the change in the input current or the change in the input current is detected. The vibration device according to any one of claims 1 to 4, wherein the vibration motor is operated when a change in the input power is near zero.