CN106644166A - Two-path temperature measuring instrument based on magnetic coupling isolation - Google Patents

Abstract

The invention discloses a two-way temperature measuring instrument based on magnetic coupling isolation, the structure of which comprises: a detector main box, a first detector connection port, a second detector connection port, a power supply connection port, a control panel, and a power button , a display frame, a display screen, a working status display light, and a control button. The right side of the first detector connection port is provided with a second detector connection port, and the right part of the detector main box is provided with a power supply connection. The upper part of the main box of the detector is provided with a control panel, the lower part of the display screen is provided with a working status display lamp, and the left side of the working status display lamp is provided with a control button, and the two input signals of the present invention are completely isolated , independent of each other, high reliability. Can be used for temperature measurement of electrical equipment. High precision, providing two switch values, which can be used as alarm output. It can effectively improve the security of the equipment.

Description

A dual-circuit temperature measuring instrument based on magnetic coupling isolation

technical field

The invention is a two-way temperature measuring instrument based on magnetic coupling isolation, which belongs to the field of temperature measurement.

Background technique

A temperature measuring instrument is an industrial automation instrument that measures the temperature of an object. The earliest temperature measuring instrument was created by Italian Galileo in 1592. It is a large glass bubble with a slender neck, which is placed upside down in a container containing wine, and part of the air is extracted from it, and the wine surface rises into the narrow neck. When the outside temperature changes, the wine surface in the narrow neck rises and falls due to the thermal expansion and contraction of the air in the glass bubble. Therefore, the height of the wine surface can indicate the temperature. In fact, this is an indicator without scale. The radiation pyrometer is designed and manufactured according to the functional relationship between the radiation energy of the object in the entire wavelength range and its temperature. The radiation temperature sensor is used as the primary instrument, and the electronic potentiometer is used as the secondary instrument. It belongs to the lens focus temperature sensor. The device has an aluminum alloy casing, the front part is the objective lens, and the thermopile compensation diaphragm is installed in the casing. There is a shifting plate on the field of view diaphragm close to the thermopile. The function of the blocking plate is to adjust the irradiation to the thermopile. The radiant energy makes the product have a uniform graduation value, and an eyepiece is installed on the detachable rear cover to observe the image of the measured object.

The prior art discloses the structure of a special temperature measuring instrument device, its application number is: CN201320451522.4, a special temperature measuring instrument device, including an integral instrument brick, a special temperature measuring instrument, a sealing flange connecting pipe and its lead wire device; The special temperature measuring instrument is composed of thermocouple, flange connecting pipe and connecting cap; the special temperature measuring instrument is located in the space formed by the integral instrument brick, sealed flange connecting pipe, furnace shell or pipe shell, and the terminal of the instrument can be connected with the integral instrument brick. The expansion moves freely, and does not break the wire or break the thermocouple; the lead wire device is located on the sealing flange connection. This device overcomes the damage to the temperature measuring instrument caused by the displacement caused by the thermal expansion and contraction of the process equipment, provides a safe testing environment, prolongs the life of the temperature measuring instrument, facilitates the inspection and maintenance of the instrument, improves the detection accuracy, and is suitable for Temperature detection in high temperature and high pressure facilities. However, the above-mentioned equipment has a complex structure, high use and maintenance costs, and relatively large detection errors.

Contents of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a dual-channel temperature measuring instrument based on magnetic coupling isolation to solve the problems of complex structure of the above-mentioned equipment, high cost of use and maintenance, and large detection error.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a dual-circuit temperature measuring instrument based on magnetic coupling isolation, its structure includes: a detector main box, a first detector connection port, a second detector Connecting port, power connecting port, control panel, power button, display screen frame, display screen, working state indicator light, control button, the right side of the first detector connecting port is provided with a second detector connecting port, and the The right part of the detector main box body is provided with a power connection port, the upper part of the detector main box body is provided with a control panel, the lower part of the display screen is provided with a working status display lamp, and the left side of the working status display lamp is provided with a There is a control button, and the right side of the control button is provided with a power button, and the main detector box includes: a reinforced outer wall of the main detection box, a magnetic coupling, a signal processing circuit, a first detector, a second detector, a processor , optocoupler isolator, wireless signal transmitter, the bottom of the reinforced outer wall of the detection main box is provided with a first detector, the right side of the first detector is provided with a second detector, the first detector and The signal processing circuit is connected, and the signal processing circuit is connected with the magnetic coupling.

Further, a display frame is provided on the upper part of the control panel, and a display screen is arranged inside the display frame.

Further, the front part of the detector main box is provided with a first detector connection port.

Further, the magnetic coupler is connected to a processor, and the processor is connected to an optocoupler isolator.

Further, the optocoupler isolator is connected to the wireless signal transmitter.

In the present invention, the two input signals are completely isolated, do not affect each other, and have high reliability. Can be used for temperature measurement of electrical equipment. High precision, providing two switch values, which can be used as alarm output. It can effectively improve the security of the equipment.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a structural schematic diagram of a dual-path temperature measuring instrument based on magnetic coupling isolation in the present invention;

Fig. 2 is the structural representation of detector main box body of the present invention;

Fig. 3 is a schematic diagram of the working principle of the present invention;

In the figure: 1-main detector box, 2-connection port of the first detector, 3-connection port of the second detector, 4-power connection port, 5-control panel, 6-power button, 7-display outside Frame, 8-display screen, 9-working status display light, 10-control button, 101-reinforced outer wall of main detection box, 102-magnetic coupling, 103-signal processing circuit, 104-first detector, 105-second Detector, 106-processor, 107-optocoupler isolator, 108-wireless signal transmitter.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

Please refer to Fig. 1 and Fig. 2, the present invention provides a technical solution: a dual-circuit temperature measuring instrument based on magnetic coupling isolation, its structure includes: detector main box 1, first detector connection port 2, second Detector connection port 3, power connection port 4, control panel 5, power button 6, display frame 7, display screen 8, working status indicator light 9, control button 10, on the right side of the first detector connection port 2 A second detector connection port 3 is provided, a power connection port 4 is provided on the right part of the main detector case 1, a control panel 5 is provided on the top of the main detector case 1, and a display screen 8 The bottom is provided with a working status display lamp 9, the left side of the working status display lamp 9 is provided with a control button 10, and the right side of the control button 10 is provided with a power button 6, and the detector main box 1 includes: a detection main box Reinforced outer wall 101, magnetic coupler 102, signal processing circuit 103, first detector 104, second detector 105, processor 106, optocoupler isolator 107, wireless signal transmitter 108, the outer wall of the main detection box is reinforced The bottom of 101 is provided with first detector 104, and the right side of described first detector 104 is provided with second detector 105, and described first detector 104 is connected with signal processing circuit 103, and described signal processing circuit 103 and magnetic Coupler 102 is connected. The upper part of the control panel 5 is provided with a display screen frame 7 , and a display screen 8 is provided inside the display screen frame 7 . The front part of the detector main box 1 is provided with a first detector connection port 2 . The magnetic coupler 102 is connected to a processor 106 , and the processor 106 is connected to an optocoupler isolator 107 . The optocoupler isolator 107 is connected to a wireless signal transmitter 108 .

Please refer to Figure 3. When using, first check whether each part is firmly connected. After confirming that the equipment is in good condition, place the equipment in a suitable position, and connect the first detector 104 and the second detector 105 to the equipment to be detected. After connecting the power supply, it can start to work normally. The two input signals are completely isolated, independent of each other, and have high reliability. Can be used for temperature measurement of electrical equipment. High precision, providing two switch values, which can be used as alarm output. It can effectively improve the security of the equipment.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or fundamentals of the present invention. The present invention can be implemented in other specific forms without any specific features. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A two-way temperature measuring instrument based on magnetic coupling isolation, characterized in that: its structure includes: detector main box (1), first detector connection port (2), second detector connection port (3 ), power connector (4), control panel (5), power button (6), display frame (7), display screen (8), working status indicator light (9), control button (10), all The right side of the first detector connection port (2) is provided with a second detector connection port (3), and the right part of the detector main box (1) is provided with a power supply connection port (4), and the detector The upper part of the main box body (1) is provided with a control panel (5), the lower part of the display screen (8) is provided with a working status display lamp (9), and the left side of the working status display lamp (9) is provided with a control button (10), the right side of the control button (10) is provided with a power button (6), and the detector main box (1) includes: a detection main box reinforced outer wall (101), a magnetic coupler (102), a signal Processing circuit (103), first detector (104), second detector (105), processor (106), optocoupler isolator (107), wireless signal transmitter (108), the detection main box The bottom of the reinforced outer wall (101) is provided with a first detector (104), the right side of the first detector (104) is provided with a second detector (105), and the first detector (104) and signal processing The circuit (103) is connected, and the signal processing circuit (103) is connected with the magnetic coupler (102). 2. A dual-circuit temperature measuring instrument based on magnetic coupling isolation according to claim 1, characterized in that: the upper part of the control panel (5) is provided with a display screen frame (7), and the display screen outer frame (7) A display screen (8) is arranged in the frame (7). 3. A dual-circuit temperature measuring instrument based on magnetic coupling isolation according to claim 1, characterized in that: the front part of the detector main box (1) is provided with a first detector connection port (2) . 4. A dual-circuit temperature measuring instrument based on magnetic coupling isolation according to claim 1, characterized in that: the magnetic coupling (102) is connected to the processor (106), and the processor (106) is connected to the optocoupler The isolator (107) is connected. 5. A dual-circuit temperature measuring instrument based on magnetic coupling isolation according to claim 1, characterized in that: the optocoupler isolator (107) is connected to a wireless signal transmitter (108).