A pressure sensor detection device

Abstract

The utility model relates to a pressure sensor detection device, including solution tank, liquid pump, to standard pressure gauge, first manual ball valve, second manual ball valve, reserved interface, first interface and data acquisition module, the liquid inlet of liquid pump is connected with solution tank through pipeline, and the liquid outlet of liquid pump is connected with one end of first manual ball valve and one end of second manual ball valve through pipeline respectively, and to standard pressure gauge is connected with the liquid outlet of liquid pump, the other end of first manual ball valve is connected with reserved interface, and the other end of second manual ball valve is connected with first interface, and reserved interface and first interface are all used for connecting the liquid inlet of pressure sensor to be measured, data acquisition module is used for connecting the signal output end of pressure sensor to be measured to gather and show the detection result of pressure sensor to be measured, the utility model discloses the verification detection to pressure sensor has been realized to guarantee the detection accuracy of pressure sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor calibration technology, specifically to a pressure sensor detection device. Background Technology

[0002] Pressure sensors used for extended periods will experience a decline in accuracy if not calibrated and tested. The lack of rapid testing methods at construction or work sites leads to distorted system pressure data. Different sensor models have varying interfaces (e.g., electrical interfaces, thread specifications), making them incompatible with single testing equipment. Significant differences in sensor output signals (e.g., 4-20mA, 0-5V) and measurement ranges necessitate manual parameter adjustment and conversion, resulting in low efficiency. Utility Model Content

[0003] In order to solve the technical problem that the accuracy of pressure sensors used for a long time will decrease if they are not calibrated and tested, this utility model provides a pressure sensor testing device.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A pressure sensor detection device includes a solution tank, a liquid pump, a calibration pressure gauge, a first manual ball valve, a second manual ball valve, a reserved interface, a first interface, and a data acquisition module. The inlet of the liquid pump is connected to the solution tank via a pipe, and the outlet of the liquid pump is connected to one end of the first manual ball valve and one end of the second manual ball valve via pipes. The calibration pressure gauge is connected to the outlet of the liquid pump. The other end of the first manual ball valve is connected to the reserved interface, and the other end of the second manual ball valve is connected to the first interface. Both the reserved interface and the first interface are used to connect to the inlet of the pressure sensor under test. The data acquisition module is used to connect to the signal output terminal of the pressure sensor under test to acquire and display the detection results of the pressure sensor under test.

[0005] The beneficial effects of this utility model are as follows: a liquid pump is used to extract a solution from the solution tank to provide a certain hydraulic pressure. A standard pressure is then measured using a benchmark pressure gauge. The hydraulic pressure is then measured using a pressure sensor under test. The detection data of the pressure sensor under test, collected by the data acquisition module, is compared with the standard pressure measured by the benchmark pressure gauge to detect whether the result of the pressure sensor under test is accurate. This achieves the calibration and testing of the pressure sensor to ensure the detection accuracy of the pressure sensor.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, it also includes a liquid level sensor, which is connected to the solution tank. The liquid level sensor is used to detect the liquid level in the solution tank and output liquid level information. The output terminal of the liquid level sensor is connected to the signal input terminal of the data acquisition module, which is also used to receive and display the liquid level information.

[0008] The advantage of adopting the above-mentioned further solution is that the liquid level in the solution tank can be monitored by setting a liquid level sensor.

[0009] Furthermore, it also includes a one-way valve, the inlet of which is connected to the solution tank via a pipe, and the outlet of which is connected to the inlet of the liquid pump via a pipe.

[0010] The advantage of adopting the above-mentioned further solution is that by setting a one-way valve, it is possible to prevent the solution from flowing back.

[0011] Furthermore, it also includes a check valve, the inlet of which is connected to the outlet of the liquid pump via a pipeline, and the outlet of which is connected to one end of the first manual ball valve and one end of the second manual ball valve via pipelines.

[0012] The advantage of adopting the above-mentioned further solution is that by setting a check valve, the solution at the outlet of the liquid pump can be prevented from flowing back.

[0013] Furthermore, it also includes a regulating gate valve, one end of which is connected to the outlet of the check valve through a pipeline, and the other end of which is connected to one end of the first manual ball valve and one end of the second manual ball valve through pipelines.

[0014] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a regulating gate valve, the flow rate can be regulated by adjusting the opening of the regulating gate valve.

[0015] Furthermore, it also includes a third manual ball valve and a second interface. One end of the third manual ball valve is connected to the other end of the regulating gate valve through a pipeline, and the other end of the third manual ball valve is connected to the second interface. The second interface is used to connect to the inlet of the pressure sensor to be tested.

[0016] The advantage of adopting the above-mentioned further solution is that by setting a third manual ball valve and a second interface, an additional pressure sensor can be detected through the second interface.

[0017] Furthermore, the first interface and the second interface have different interface types.

[0018] The advantage of adopting the above-mentioned further solution is that by setting the first interface and the second interface to different interface types, pressure sensors with multiple interface types can be adapted.

[0019] Furthermore, it also includes a regulating shut-off valve, the inlet of which is connected to the other end of the regulating gate valve via a pipeline, and the outlet of which is connected to the solution tank via a pipeline.

[0020] The beneficial effect of adopting the above-mentioned further solution is that, by setting a regulating shut-off valve, the leakage hydraulic pressure can be regulated, thereby improving the safety of the pressure supply system circuit.

[0021] Furthermore, the data acquisition module includes a microcontroller and a display unit. The signal output terminal of the pressure sensor under test is connected to the signal input terminal of the microcontroller, and the transceiver terminal of the microcontroller is connected to the transceiver terminal of the display unit.

[0022] The advantage of adopting the above-mentioned further solution is that the pressure sensor data is processed by a microcontroller and displayed by a display unit.

[0023] Furthermore, the data acquisition module also includes multiple analog-to-digital converters, the signal output terminals of which are connected to the signal input terminals of the microcontroller, and the signal input terminals of which are connected to the signal output terminals of the pressure sensor under test.

[0024] The advantage of adopting the above-mentioned further solution is that by setting an analog-to-digital converter, the analog signal output by the pressure sensor can be converted into a digital signal, so that the microcontroller can recognize it. Attached Figure Description

[0025] Figure 1 This is the electrical schematic diagram of this utility model; Figure 2 This is the circuit schematic of the data acquisition module.

[0026] The attached diagram lists the components represented by each number as follows: 1. Solution tank; 2. Check valve; 3. Liquid level sensor; 4. Liquid pump; 5. Calibration pressure gauge; 6. Check valve; 7. Regulating gate valve; 8. Regulating shut-off valve; 9. First manual ball valve; 10. Second manual ball valve; 11. Third manual ball valve; 12. Reserved interface; 13. First interface; 14. Second interface; 15. First pressure sensor under test; 16. Second pressure sensor under test; 17. Data acquisition module. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] like Figure 1As shown, this embodiment provides a pressure sensor detection device, including a solution tank 1, a liquid pump 4, a calibration pressure gauge 5, a first manual ball valve 9, a second manual ball valve 10, a reserved interface 12, a first interface 13, and a data acquisition module 17.

[0029] The inlet of the liquid pump 4 is connected to the solution tank 1 via a pipe, and the outlet of the liquid pump 4 is connected to one end of the first manual ball valve 9 and one end of the second manual ball valve 10 via pipes. The calibration pressure gauge 5 is connected to the outlet of the liquid pump 4. The other end of the first manual ball valve 9 is connected to the reserved interface 12, and the other end of the second manual ball valve 10 is connected to the first interface 13. Both the reserved interface 12 and the first interface 13 are used to connect to the inlet of the pressure sensor under test. The data acquisition module 17 is used to connect to the signal output terminal of the pressure sensor under test to acquire and display the detection results of the pressure sensor under test.

[0030] This embodiment of the invention utilizes a liquid pump 4 to extract solution from the solution tank 1 to provide a certain hydraulic pressure. A standard pressure is then measured using a calibration pressure gauge 5, and the hydraulic pressure is measured using a pressure sensor under test. The detection data of the pressure sensor under test, collected by the data acquisition module 17, is compared with the standard pressure measured by the calibration pressure gauge 5 to determine whether the result of the pressure sensor under test is accurate. This process verifies and tests the pressure sensor to ensure its detection accuracy.

[0031] In some embodiments, the pressure sensor detection device further includes a liquid level sensor 3, which is connected to the solution tank 1. The liquid level sensor 3 is used to detect the liquid level in the solution tank 1 and output liquid level information. The output terminal of the liquid level sensor 3 is connected to the signal input terminal of the data acquisition module 17, which is also used to receive and display the liquid level information. By setting the liquid level sensor 3, the liquid level in the solution tank 1 can be monitored.

[0032] In some embodiments, the pressure sensor detection device further includes a one-way valve 2, the inlet of which is connected to the solution tank 1 via a pipe, and the outlet of which is connected to the inlet of the liquid pump 4 via a pipe. By providing the one-way valve 2, backflow of the solution can be prevented.

[0033] In some embodiments, the pressure sensor detection device further includes a check valve 6. The inlet of the check valve 6 is connected to the outlet of the liquid pump 4 via a pipe, and the outlet of the check valve 6 is connected to one end of the first manual ball valve 9 and one end of the second manual ball valve 10 via pipes. By providing the check valve 6, backflow of solution at the outlet of the liquid pump 4 can be prevented.

[0034] In some embodiments, the pressure sensor detection device further includes a regulating gate valve 7. One end of the regulating gate valve 7 is connected to the outlet of the check valve 6 via a pipeline, and the other end of the regulating gate valve 7 is connected to one end of the first manual ball valve 9 and one end of the second manual ball valve 10 via pipelines. By providing the regulating gate valve 7, the flow rate can be adjusted by regulating the opening degree of the regulating gate valve 7.

[0035] In some embodiments, the pressure sensor detection device further includes a third manual ball valve 11 and a second interface 14. One end of the third manual ball valve 11 is connected to the other end of the regulating gate valve 7 via a pipe, and the other end of the third manual ball valve 11 is connected to the second interface 14. The second interface 14 is used to connect to the inlet of the pressure sensor to be tested. By providing the third manual ball valve 11 and the second interface 14, one more pressure sensor can be detected through the second interface 14.

[0036] The first pressure sensor 15 to be tested is connected to the first interface 13, and the second pressure sensor 16 to be tested is connected to the second interface 14. The first pressure sensor 15 and the second pressure sensor 16 to be tested are respectively connected to the data acquisition module 17 so as to realize the simultaneous verification of the first pressure sensor 15 and the second pressure sensor 16 to be tested.

[0037] The first interface 13 and the second interface 14 of the aforementioned pressure sensor detection device have different interface types. For example, the first interface 13 can be set to an M12 aviation plug, and the second interface 14 can be set to a G1 / 4 threaded interface. By setting the first interface 13 and the second interface 14 to different interface types, pressure sensors with various interface types can be adapted.

[0038] In some embodiments, the pressure sensor detection device further includes a regulating shut-off valve 8. The inlet of the regulating shut-off valve 8 is connected to the other end of the regulating gate valve 7 via a pipeline, and the outlet of the regulating shut-off valve 8 is connected to the solution tank 1 via a pipeline. The regulating shut-off valve 8 is an overflow valve, and the regulating gate valve 7 is a proportional valve. The proportional valve receives a control signal and adjusts the output pressure, which is continuously adjustable from 0 to 40 MPa. The overflow valve limits the maximum system pressure to ensure safety. By setting the regulating shut-off valve 8, the leakage hydraulic pressure can be adjusted, improving the safety of the pressure supply system circuit.

[0039] like Figure 2As shown, in some embodiments, the data acquisition module 17 includes a microcontroller U4 and a display unit U5. The signal output terminal of the pressure sensor under test is connected to the signal input terminal of the microcontroller U4, and the transceiver terminal of the microcontroller U4 is connected to the transceiver terminal of the display unit U5. The pressure sensor data is processed by the microcontroller U4 and displayed by the display unit U5.

[0040] In some embodiments, the data acquisition module 17 further includes multiple analog-to-digital converters (ADCs). The signal output terminals of the ADCs are connected to the signal input terminals of the microcontroller U4, and the signal input terminals of the ADCs are connected to the signal output terminals of the pressure sensor under test. The multiple ADCs can be of different types, for example: the first ADC U1 is a current-mode ADC, the second ADC U2 is a voltage-mode ADC, and the third ADC U3 is a voltage-mode ADC. By setting the ADCs, the analog signal output by the pressure sensor can be converted into a digital signal for the microcontroller to recognize. Furthermore, by setting different types of ADCs, when the output of the pressure sensor under test is a current signal, the first ADC U1 can be used to convert the current signal into a digital signal for the microcontroller to recognize; when the output of the pressure sensor under test is a voltage signal, the second ADC U2 can be used to convert the voltage signal into a digital signal for the microcontroller to recognize.

[0041] It should be noted that the power supply for the liquid level sensor 3, the first pressure sensor to be measured 15, the second pressure sensor to be measured 16, the data acquisition module 17, etc. in this utility model can be achieved by purchasing commercially available power supplies or power converters to convert 220V household AC power into commonly used power supply voltages of 24V, 12V, 5V and 3.3V to power the corresponding electrical components.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the concept and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure sensor detection device, characterized in that: It includes a solution tank (1), a liquid pump (4), a calibration pressure gauge (5), a first manual ball valve (9), a second manual ball valve (10), a reserved interface (12), a first interface (13), and a data acquisition module (17). The inlet of the liquid pump (4) is connected to the solution tank (1) through a pipe. The outlet of the liquid pump (4) is connected to one end of the first manual ball valve (9) and one end of the second manual ball valve (10) through pipes. The calibration pressure gauge (5) is connected to the outlet of the liquid pump (4). The other end of the first manual ball valve (9) is connected to the reserved interface (12), and the other end of the second manual ball valve (10) is connected to the first interface (13). The reserved interface (12) and the first interface (13) are both used to connect to the inlet of the pressure sensor to be tested. The data acquisition module (17) is used to connect to the signal output terminal of the pressure sensor to be tested in order to collect and display the detection results of the pressure sensor to be tested.

2. The pressure sensor detection device according to claim 1, characterized in that: It also includes a liquid level sensor (3), which is connected to the solution tank (1). The liquid level sensor (3) is used to detect the liquid level of the solution tank (1) and output liquid level information. The output end of the liquid level sensor (3) is connected to the signal input end of the data acquisition module (17). The data acquisition module (17) is also used to receive and display the liquid level information.

3. The pressure sensor detection device according to claim 1, characterized in that: It also includes a one-way valve (2), the inlet of which is connected to the solution tank (1) through a pipe, and the outlet of which is connected to the inlet of the liquid pump (4) through a pipe.

4. The pressure sensor detection device according to claim 1, characterized in that: It also includes a check valve (6), the inlet of which is connected to the outlet of the liquid pump (4) through a pipeline, and the outlet of which is connected to one end of the first manual ball valve (9) and one end of the second manual ball valve (10) through a pipeline.

5. The pressure sensor detection device according to claim 4, characterized in that: It also includes a regulating gate valve (7), one end of which is connected to the outlet of the check valve (6) through a pipeline, and the other end of which is connected to one end of the first manual ball valve (9) and one end of the second manual ball valve (10) through pipelines.

6. The pressure sensor detection device according to claim 5, characterized in that: It also includes a third manual ball valve (11) and a second interface (14). One end of the third manual ball valve (11) is connected to the other end of the regulating gate valve (7) through a pipeline, and the other end of the third manual ball valve (11) is connected to the second interface (14). The second interface (14) is used to connect to the inlet of the pressure sensor to be tested.

7. The pressure sensor detection device according to claim 6, characterized in that: The first interface (13) and the second interface (14) have different interface types.

8. The pressure sensor detection device according to claim 5, characterized in that: It also includes a regulating shut-off valve (8), the inlet of which is connected to the other end of the regulating gate valve (7) through a pipeline, and the outlet of which is connected to the solution tank (1) through a pipeline.

9. The pressure sensor detection device according to claim 1, characterized in that: The data acquisition module (17) includes a microcontroller (U4) and a display unit (U5). The signal output terminal of the pressure sensor under test is connected to the signal input terminal of the microcontroller (U4), and the transceiver terminal of the microcontroller (U4) is connected to the transceiver terminal of the display unit (U5).

10. The pressure sensor detection device according to claim 9, characterized in that: The data acquisition module (17) also includes multiple analog-to-digital converters. The signal output terminal of the analog-to-digital converter is connected to the signal input terminal of the microcontroller (U4), and the signal input terminal of the analog-to-digital converter is connected to the signal output terminal of the pressure sensor under test.

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