Portable sensor calibration test equipment

Abstract

A portable sensor calibration test device disclosed by the present invention comprises a calibration assembly, the calibration assembly is composed of a cover plate, a channel display screen, a base, a type change-over switch, a calibration board switch, a communication interface, a reserved interface, an acquisition switching interface, a calibration board interface, a module board and a power socket, and the cover plate is fixedly connected with the channel display screen. The cover plate is fixedly connected to the base, a type change-over switch is fixedly connected to the base, and a calibration plate switch is fixedly connected to the base; according to the invention, the multi-path calibration module and the multi-path switch module are combined together, and the whole calibration box is only 3kg in weight and only A4 paper in size through a miniaturized and light design, and can directly work by using commercial power; the calibration board interface and the acquisition switching interface are connected with the sensor by using a special test cable, and only two special connectors exist in the interconnection part of the sensor, so that the situation that the sensor is damaged due to wiring errors in the production process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sensor calibration testing, and in particular to a portable sensor calibration testing device. Background Art

[0002] Traditional calibration equipment only adds calibration functions to the equipment. Due to the lack of acquisition functions, another set of equipment is needed to perform manual testing after the sensor calibration, which reduces production efficiency to a certain extent.

[0003] When performing multi-channel calibration, production personnel need to first connect the sensors to be calibrated to a large batch calibration device (mostly cabinet-type). After the calibration is completed, it is necessary to restore the standard atmospheric environment, replace the sensor test cables, and then test the sensors one by one through a manual test box. During the test process, power supplies, multimeters, connecting cables, socket strips, etc. are also required.

[0004] Traditional batch calibration equipment is huge in size and is usually assembled in cabinets. It has many supporting equipment and is not easy to use in multiple production sites. At the same time, the calibration and batch switch functions are not integrated together, the equipment is scattered, the connection logic is confusing, and there is a problem of easy wiring errors. Therefore, it is necessary to design a portable sensor calibration test equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a portable sensor calibration and testing equipment to solve the problems that the existing batch calibration equipment is huge in size and is usually assembled in a cabinet; there are many supporting equipment and it is not easy to use in multiple production sites. At the same time, the functions of calibration and batch switching are not integrated together, the equipment is scattered, the connection logic is confusing, and there is a problem of easy wiring errors.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a portable sensor calibration and testing device, including a calibration component, wherein the calibration component is composed of a cover plate, a channel display screen, a base, a type switching switch, a calibration board switch, a communication interface, a reserved interface, an acquisition switching interface, a calibration board interface, a module board and a power socket, the cover plate is fixedly connected to the channel display screen, the cover plate is fixedly connected to the base, the base is fixedly connected to the type switching switch, the base is fixedly connected to the calibration board switch, the base is fixedly connected to the communication interface, and the base is fixedly connected to the reserved interface.

[0007] As a further technical solution of the present invention, a collection switching interface is fixedly connected to the base, and a calibration board interface is fixedly connected to the base.

[0008] As a further technical solution of the present invention, the calibration board interface passes through the base and is fixedly connected to the module board, the module board is fixedly connected to the base, and a power socket is fixedly connected to the base.

[0009] As a further technical solution of the present invention, a calibration module is provided in the module board, and a conversion module is provided in the module board.

[0010] As a further technical solution of the present invention, a recording module is provided in the module board.

[0011] As a further technical solution of the present invention, a test module is provided in the module board.

[0012] As a further technical solution of the present invention, a switch module is provided in the module board.

[0013] The portable sensor calibration and testing equipment provided by the present invention has the advantages that: the calibration component is connected to the host computer through a communication protocol, a special test cable is welded on the sensor and connected to the calibration board interface, and the sensor is calibrated through the calibration module in the module board and the host computer, wherein the sensor with different outputs can be calibrated through the conversion module, and then the special cable is detached from the calibration board interface and connected to the acquisition switching interface, and the external test equipment is connected through the reserved interface, and the automatic test of the sensor is completed on the host computer through the test module and the switch module on the module board, and the data is recorded through the recording module for easy traceability, which solves the problem that batch calibration equipment is difficult to move and batch test, combines the multi-channel calibration module with the multi-channel switch module, and through the miniaturized and lightweight design, the weight of the entire calibration box is only 3kg, the size is only the size of A4 paper, and it can work directly using mains electricity; the special test cable is used to connect to the sensor through the calibration board interface and the acquisition switching interface, and there are only two special connectors for the sensor interconnection part, and there will be no wiring errors in the production process that cause damage to the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 A schematic diagram of the position of the power socket in the present invention;

[0017] Figure 3 It is a schematic diagram of the position of the module board in the present invention;

[0018] Figure 4 It is a schematic diagram of the position of the test module in the present invention.

[0019] In the figure: 1. Calibration component; 11. Cover plate; 12. Channel display screen; 13. Base; 14. Type switching switch; 15. Calibration board switch; 16. Communication interface; 17. Reserved interface; 18. Collection switching interface; 19. Calibration board interface; 20. Module board; 21. Power socket; 30. Calibration module; 31. Conversion module; 32. Recording module; 33. Test module; 34. Switch module. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Please see attached Figure 1 -Attached Figure 4An embodiment of the present invention is as follows: a portable sensor calibration and testing device comprises a calibration component 1, wherein the calibration component 1 comprises a cover plate 11, a channel display screen 12, a base 13, a type switching switch 14, a calibration board switch 15, a communication interface 16, a reserved interface 17, an acquisition switching interface 18, a calibration board interface 19, a module board 20 and a power socket 21. The cover plate 11 is fixedly connected to the channel display screen 12, the cover plate 11 is fixedly connected to the base 13, the base 13 is fixedly connected to the type switching switch 14, the base 13 is fixedly connected to the calibration board switch 15, the base 13 is fixedly connected to the communication interface 16, the base 13 is fixedly connected to the reserved interface 17, the base 13 is fixedly connected to the acquisition switching interface 1 8. A calibration board interface 19 is fixedly connected to the base 13, and the calibration board interface 19 penetrates the base 13 and is fixedly connected to the module board 20, and the module board 20 is fixedly connected to the base 13. A power socket 21 is fixedly connected to the base 13. A calibration module 30 is arranged in the module board 20, a conversion module 31 is arranged in the module board 20, a recording module 32 is arranged in the module board 20, and a test module 33 is arranged in the module board 20. The test module 33 can perform on-board testing on the sensor that has been calibrated, and can collect 32 sensor signals at the same time. A switch module 34 is arranged in the module board 20. The switch module 34 adopts a miniaturized signal relay, integrates 32 switches, a microcontroller, etc., and has a volume of only 20mm×20mm;

[0023] Specifically, when in use, first, the calibration component 1 is connected to the host computer through the communication protocol, and a special test cable is welded on the sensor and connected to the calibration board interface 19, and the sensor is calibrated through the calibration module 30 in the module board 20 and the host computer, wherein the sensor with different outputs can be calibrated through the conversion module 31, and then the special cable is removed from the calibration board interface 19 and connected to the acquisition switching interface 18, and the external test equipment is connected through the reserved interface 17, and the transmission is completed on the host computer through the test module 33 and the switch module 34 on the module board 20. The sensor is automatically tested and the data is recorded through the recording module 32 for easy traceability, which solves the problem that batch calibration equipment is difficult to move and batch test. The multi-channel calibration module 30 is combined with the multi-channel switch module 34, and through the miniaturized and lightweight design, the weight of the entire calibration box is only 3kg, and the size is only the size of A4 paper, and it can work directly with AC power. A special test cable is used to connect to the sensor through the calibration board interface 19 and the acquisition switching interface 18. There are only two special connectors for the sensor interconnection part, and there will be no wiring errors in the production process that will cause damage to the sensor.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable sensor calibration test device, comprising a calibration component (1), characterized in that: The calibration component (1) comprises a cover plate (11), a channel display screen (12), a base (13), a type switching switch (14), a calibration board switch (15), a communication interface (16), a reserved interface (17), an acquisition switching interface (18), a calibration board interface (19), a module board (20) and a power socket (21); the cover plate (11) is fixedly connected to the channel display screen (12); the cover plate (11) is fixedly connected to the base (13); the type switching switch (14) and the calibration board switch (15) are fixedly connected to the base (13); the communication interface (16) is fixedly connected to the base (13); and the reserved interface (17) is fixedly connected to the base (13).

2. A portable sensor calibration test device according to claim 1, characterized in that: The base (13) is fixedly connected with a collection switching interface (18), and the base (13) is fixedly connected with a calibration board interface (19).

3. A portable sensor calibration test device according to claim 2, characterized in that: The calibration board interface (19) passes through the base (13) and is fixedly connected to the module board (20); the module board (20) is fixedly connected to the base (13); and a power socket (21) is fixedly connected to the base (13).

4. A portable sensor calibration test device according to claim 3, characterized in that: The module board (20) is provided with a calibration module (30), and the module board (20) is provided with a conversion module (31).

5. A portable sensor calibration test device according to claim 4, characterized in that: A recording module (32) is provided in the module board (20).

6. A portable sensor calibration test device according to claim 5, characterized in that: A test module (33) is arranged in the module board (20).

7. A portable sensor calibration test device according to claim 6, characterized in that: A switch module (34) is arranged in the module board (20).

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