Detection equipment for wide-range pressure sensor
By designing a multifunctional detection device, using components such as simulation chamber, electrical heating, spraying, refrigeration and electromagnets, the problem of single functions of the existing detection device is solved, and comprehensive inspection of pressure sensors is achieved under multiple environmental conditions, improving detection efficiency and accuracy.
Patent Information
- Application Number
- CN202421707203.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The existing detection device used to detect pressure sensors has a single function and cannot comprehensively evaluate the sensor performance. Especially in complex and changing application scenarios, it is impossible to simulate and detect comprehensive environmental factors such as temperature, humidity, electromagnetic interference, etc., resulting in poor performance in actual use.
A multifunctional detection device is designed, including the detection device body, the test component one and the test component two. By setting the simulation chamber one and the simulation chamber two on the upper end of the detection device body, combined with the insulation partition, electric heating parts, spray nozzles, refrigeration parts, temperature sensors, humidity sensors and electromagnets, simulated testing of the high temperature, low temperature, humidity and electromagnetic environment of the pressure sensor is realized.
It realizes comprehensive inspection of pressure sensors under multiple environmental conditions, and can conduct both low-temperature and high-temperature testing at the same time, improves detection efficiency and accuracy, reduces equipment costs and test site occupancy, and helps improve the production quality and performance of sensors.
Smart Images
Figure CN222784238U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of detection equipment, and particularly relates to detection equipment for a large-range pressure sensor. Background Art
[0002] Existing detection devices for detecting pressure sensors have significant disadvantages in terms of single detection function. First, devices with a single detection function can usually only measure a specific parameter of the pressure sensor, such as pressure range or sensitivity, and cannot fully evaluate the performance of the sensor. This limitation will lead to insufficient evaluation of the overall quality and reliability of the sensor, especially when the application scenarios are complex and changeable. In actual applications, pressure sensors may be affected by a variety of environmental factors such as temperature, humidity, and electromagnetic interference, and devices with a single detection function cannot simulate and detect these combined effects, which can easily lead to poor performance of the sensor in actual use. In addition, the single function of the detection device also means that it is impossible to effectively evaluate the dynamic response characteristics of the sensor, such as important indicators such as the sensor's response time, hysteresis, and drift, which are critical to many precision applications.
[0003] A detection device with a single function cannot provide complete data support and may cause the sensor to fail in applications that require high precision and high stability. These shortcomings are mainly due to the limitations of the detection device design, which is usually designed with a single function to reduce costs or simplify operations. Traditional coping methods include using multiple detection devices with different functions for separate testing, or adding accessories and modifications to a single device to achieve multi-functional detection. However, these methods have obvious disadvantages: using multiple detection devices will significantly increase testing time and costs, while increasing the complexity of equipment maintenance and management; and modifying a single device may lead to a decrease in detection accuracy and stability, and the modified device is often difficult to achieve the expected results in actual operation. Therefore, we hope to design a detection device with a new structure to solve this problem. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a detection device for a large-range pressure sensor to solve the problems raised in the above-mentioned background technology.
[0005] The utility model is realized by the following technical scheme: a detection device for a large-range pressure sensor, comprising: a detection device body, a test component 1 and a test component 2, wherein the test component 1 for performing a pressure test of the large-range pressure sensor is installed on the left side of the upper end of the detection device body, and the test component 2 for performing a pressure test of the large-range pressure sensor is installed on the right side of the upper end of the detection device body;
[0006] A simulation cavity 1 is provided on the left side of the upper end of the detection device body, a simulation cavity 2 is provided on the left side of the upper end of the detection device body, an operation screen is installed on the left side of the detection device body, and a refrigeration component is installed on the right side of the detection device body;
[0007] The test component 1 includes a base plate, columns and a hydraulic cylinder. Four columns distributed in a rectangular structure are fixed to the upper surface of the base plate, a top plate is fixed to the upper ends of the four columns, and a hydraulic cylinder is fixed in the middle of the lower surface of the top plate.
[0008] As a preferred embodiment, a thermal insulation partition is arranged between the simulation chamber one and the simulation chamber two, the inner wall at the left end of the simulation chamber one and the inner wall on the left side of the thermal insulation partition are provided with electric heating elements, and a plurality of spray nozzles are installed on the lower side of the rear end of the simulation chamber one. In actual use, temperature sensors and humidity sensors are installed inside the simulation chamber one and the simulation chamber two, which are connected to the operation screen signal through wires or wireless signals to form corresponding temperature and humidity data transmission.
[0009] As a preferred embodiment, a liquid nitrogen bottle is placed inside the refrigeration component, and the liquid nitrogen bottle is connected to the nozzle through an output pipe and a solenoid valve. The inner end of the nozzle is located inside the right side of the simulation chamber 2. By setting up the refrigeration component, the temperature inside the simulation chamber 2 can be quickly reduced by using liquid nitrogen, and the low temperature can reach a lower temperature, which is sufficient to meet the needs of low temperature testing.
[0010] As a preferred embodiment, the test component 1 also includes an electromagnetic component, a screw, a fixed seat and a guide rod. A fixed seat is fixed on the upper and lower sides between the two columns on the left side of the base plate, and a servo motor is installed in the middle of the upper surface of the fixed seat on the upper side of the two columns on the left side of the base plate.
[0011] As a preferred embodiment, a screw rod is rotatably installed between two fixing seats on the two uprights on the left side of the bottom plate, and the upper end of the screw rod is connected to the output shaft of the servo motor through a coupling;
[0012] A fixing seat is fixed on the upper side and the lower side between the two upright posts on the right side of the bottom plate respectively, and a guide rod is fixed between the two fixing seats on the two upright posts on the right side of the bottom plate.
[0013] As a preferred embodiment, a mounting platform is fixed in the middle of the upper side of the base plate, a large-range pressure sensor is movably mounted on the upper side of the mounting platform, and the center of the mounting platform is colinear with the piston rod axis of the hydraulic cylinder.
[0014] A nut is installed inside the left end of the electromagnetic component, and the left end of the electromagnetic component is movably connected to the screw rod through the nut. The right end of the electromagnetic component passes through from top to bottom to form a through hole, and the right end of the electromagnetic component is slidably connected to the guide rod through the through hole. An annular electromagnet is installed inside the electromagnetic component.
[0015] After adopting the above technical solution, the beneficial effect of the utility model is as follows: by arranging the simulation chamber 1 and the simulation chamber 2 at the upper end of the detection device body, and separating the two by a heat-insulating partition, the detection device body can simultaneously perform low-temperature testing and high-temperature testing on the pressure sensor. The two-in-one structure can not only reduce the equipment procurement cost, but also reduce the occupancy of the test site, greatly improving the detection efficiency and detection time of the pressure sensor;
[0016] The setting of test component one and test component two, in conjunction with the detection equipment body, fixes a large-range pressure sensor on the upper side of the mounting table at the lower end of the test component, and fixes another large-range pressure sensor on the lower end of test component two in the same way, and then starts the electric heating element inside the simulation chamber one. If the detection result of the large-range pressure sensor in a high-temperature environment is simply tested, the spray nozzle is not started to spray water mist into the simulation chamber one. If the detection result of the large-range pressure sensor in a high-temperature and high-humidity environment needs to be tested, the spray nozzle can be started synchronously after the electric heating element is started, or the spray nozzle can be started separately to test the detection result of the large-range pressure sensor in a high-humidity environment. The electromagnetic environment can be arbitrarily matched in the above three environments, that is, in the above three environments, the electromagnetic element is gradually lowered close to the large-range pressure sensor by driving the lead screw through the servo motor. At the same time, the annular electromagnet inside the electromagnetic element is energized to generate a magnetic field, so that a variety of detection environments can be simulated, which greatly improves the environmental simulation capability of the equipment, and can truly test the detection results of the large-range pressure sensor in a variety of environments, which is helpful to subsequently improve the production quality and performance of the large-range pressure sensor.
[0017] The large-range pressure sensor inside the simulation cavity 2 can spray a certain amount of liquid nitrogen into the simulation cavity through the liquid nitrogen bottle and nozzle in the refrigeration part, thereby quickly reducing the temperature inside the simulation cavity 2. After the temperature is reduced to an appropriate range, the hydraulic cylinder can be started to detect the large-range pressure sensor. At the same time, the electromagnetic component can also be started to increase the electromagnetic environment in the low-temperature environment, expand the test environment of the large-range pressure sensor, and enable the equipment to test the test results of the large-range pressure sensor in more environments, which will help provide direction for the subsequent production and research and development of large-range pressure sensors. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0019] Figure 1The utility model is a schematic diagram of the overall structure of a detection device for a large-range pressure sensor.
[0020] Figure 2 The utility model is a schematic diagram of the internal structure of a detection device body of a detection device for a large-range pressure sensor.
[0021] Figure 3 The utility model is a schematic diagram of a test assembly structure of a detection device for a large-range pressure sensor.
[0022] Figure 4 The utility model is a schematic diagram of the top view structure of the electromagnetic component of the detection equipment for the large-range pressure sensor.
[0023] In the figure, 100-detection equipment body, 110-simulation chamber 1, 111-electric heating element, 112-spray nozzle, 120-simulation chamber 2, 130-operation screen, 140-refrigeration element, 141-spray head;
[0024] 200-test component 1, 210-bottom plate, 220-mounting table, 230-column, 240-electromagnetic component, 241-screw nut, 242-through hole, 250-screw rod, 260-fixed seat, 270-hydraulic cylinder, 280-guide rod;
[0025] 300-Test component two. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figures 1 to 4 The utility model provides a technical solution: a detection device for a large-range pressure sensor, comprising: a detection device body 100, a test assembly 1 200 and a test assembly 2 300, wherein the test assembly 1 200 for performing a pressure test on a large-range pressure sensor is installed on the left side of the upper end of the detection device body 100, and the test assembly 2 300 for performing a pressure test on a large-range pressure sensor is installed on the right side of the upper end of the detection device body 100;
[0028] A simulation cavity 110 is provided on the left side of the upper end of the detection device body 100, a simulation cavity 2 120 is provided on the left side of the upper end of the detection device body 100, an operation screen 130 is installed on the left side of the detection device body 100, and a refrigeration component 140 is installed on the right side of the detection device body 100;
[0029] The test component 1 200 includes a base plate 210, columns 230 and a hydraulic cylinder 270. Four columns 230 distributed in a rectangular structure are fixed to the upper surface of the base plate 210. A top plate is fixed to the upper ends of the four columns 230. A hydraulic cylinder 270 is fixed in the middle of the lower surface of the top plate.
[0030] An insulation partition is arranged between simulation chamber 1 10 and simulation chamber 2 120. Electric heating elements 111 are arranged on the inner wall at the left end of simulation chamber 1 10 and the inner wall on the left side of the insulation partition. A plurality of spray nozzles 112 are installed on the lower side of the rear end of simulation chamber 1 10. In actual use, temperature sensors and humidity sensors are installed inside simulation chamber 1 10 and simulation chamber 2 120, which are connected to the operation screen 130 through wires or wireless signals to form corresponding temperature and humidity data transmission.
[0031] As the first embodiment of the utility model, by arranging simulation cavity 1 110 and simulation cavity 2 120 at the upper end of the detection device body 100, and separating the two by an insulating partition, the detection device body 100 can perform low-temperature testing and high-temperature testing on the pressure sensor at the same time. The two-in-one structure can not only reduce the equipment procurement cost, but also reduce the occupancy of the test site, greatly improving the detection efficiency and detection time of the pressure sensor.
[0032] See also Figures 1 to 4 A liquid nitrogen bottle is placed inside the refrigeration component 140, and the liquid nitrogen bottle is connected to the nozzle 141 through an output pipe and a solenoid valve. The inner end of the nozzle 141 is located inside the right side of the simulation chamber 120. By setting the refrigeration component 140, the temperature inside the simulation chamber 120 can be quickly reduced by using liquid nitrogen, and the low temperature can reach a lower temperature, which is sufficient to meet the needs of low temperature testing.
[0033] Test component 1 200 also includes an electromagnetic component 240, a screw rod 250, a fixed seat 260 and a guide rod 280. A fixed seat 260 is fixed on the upper and lower sides between the two columns 230 on the left side of the base plate 210, and a servo motor is installed in the middle of the upper surface of the fixed seat 260 on the upper side of the two columns 230 on the left side of the base plate 210.
[0034] A screw rod 250 is rotatably mounted between two fixing seats 260 on the two uprights 230 on the left side of the bottom plate 210, and the upper end of the screw rod 250 is connected to the output shaft of the servo motor through a coupling;
[0035] A fixing seat 260 is fixed on the upper side and the lower side between the two upright posts 230 on the right side of the bottom plate 210 , respectively. A guide rod 280 is fixed between the two fixing seats 260 on the two upright posts 230 on the right side of the bottom plate 210 .
[0036] A mounting platform 220 is fixed in the middle of the upper side of the bottom plate 210 , and a large-range pressure sensor is movably mounted on the upper side of the mounting platform 220 . The center of the mounting platform 220 is colinear with the axis of the piston rod of the hydraulic cylinder 270 .
[0037] A nut 241 is installed inside the left end of the electromagnetic component 240, and the left end of the electromagnetic component 240 is movably connected to the screw rod 250 through the nut 241. The right end of the electromagnetic component 240 passes through from top to bottom to form a through hole 242, and the right end of the electromagnetic component 240 is slidably connected to the guide rod 280 through the through hole 242. An annular electromagnet is installed inside the electromagnetic component 240.
[0038] As a second embodiment of the present utility model, based on the above-mentioned first embodiment, the setting of the test component 1 200 and the test component 2 300, in conjunction with the detection equipment body 100, in actual use, a large-range pressure sensor is fixed on the upper side of the mounting table 220 at the lower end of the test component 1 200, and another large-range pressure sensor is fixed on the lower end of the test component 2 300 in the same way (the structure and size of the test component 2 300 are the same as the structure and size of the test component 1 200), and then the electric heating element 111 inside the simulation cavity 1 10 is started. If the detection result of the large-range pressure sensor is simply tested in a high-temperature environment, the spray nozzle 112 is not started to spray water mist into the simulation cavity 1 10. If a high-temperature test is required, The detection result of the large-range pressure sensor in the high-temperature and high-humidity environment can be obtained by starting the spray nozzle 112 synchronously after the electric heating element 111 is started, or by starting the spray nozzle 112 alone. The detection result of the large-range pressure sensor in the high-humidity environment can be tested. The electromagnetic environment can be arbitrarily matched in the above three environments, that is, in the above three environments, the electromagnetic element 240 is gradually lowered close to the large-range pressure sensor by driving the lead screw 250 through the servo motor. At the same time, the annular electromagnet inside the electromagnetic element 240 is energized to generate a magnetic field. In this way, a variety of detection environments can be simulated, which greatly improves the environmental simulation capability of the equipment, and can truly test the detection results of the large-range pressure sensor in a variety of environments, which is helpful to subsequently improve the production quality and performance of the large-range pressure sensor.
[0039] The large-range pressure sensor inside the simulation cavity 120 can spray a certain amount of liquid nitrogen into the simulation cavity through the liquid nitrogen bottle and the nozzle 141 in the refrigeration component 140, thereby quickly reducing the temperature in the simulation cavity 120. After the temperature is reduced to an appropriate range, the hydraulic cylinder 270 can be started to detect the large-range pressure sensor. At the same time, the electromagnetic component 240 can also be started to increase the electromagnetic environment in the low-temperature environment, expand the test environment of the large-range pressure sensor, and enable the equipment to test the test results of the large-range pressure sensor in more environments, which will help provide direction for the subsequent production and research and development of large-range pressure sensors.
[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A detection device for a large-range pressure sensor, comprising: A detection device body (100), a test component one (200) and a test component two (300), characterized in that a test component one (200) for performing a pressure test on a large-range pressure sensor is installed on the left side of the upper end of the detection device body (100), and a test component two (300) for performing a pressure test on a large-range pressure sensor is installed on the right side of the upper end of the detection device body (100); A simulation cavity 1 (110) is provided on the left side of the upper end of the detection device body (100), a simulation cavity 2 (120) is provided on the left side of the upper end of the detection device body (100), an operation screen (130) is installed on the left side of the detection device body (100), and a refrigeration component (140) is installed on the right side of the detection device body (100); The test assembly 1 (200) comprises a base plate (210), columns (230) and a hydraulic cylinder (270); four columns (230) distributed in a rectangular structure are fixed to the upper surface of the base plate (210); a top plate is fixed to the upper ends of the four columns (230); and a hydraulic cylinder (270) is fixed in the middle of the lower surface of the top plate.
2. A detection device for a large-range pressure sensor as claimed in claim 1, characterized in that: A heat-insulating partition is provided between the simulation chamber one (110) and the simulation chamber two (120); an electric heating element (111) is provided on the inner wall at the left end of the simulation chamber one (110) and the inner wall on the left side of the heat-insulating partition; and a plurality of spray nozzles (112) are installed on the lower side of the rear end of the simulation chamber one (110).
3. A detection device for a large-range pressure sensor as claimed in claim 1, characterized in that: A liquid nitrogen bottle is placed inside the refrigeration element (140), and the liquid nitrogen bottle is connected to the nozzle (141) via an output pipe and a solenoid valve, and the inner end of the nozzle (141) is located inside the right side of the simulation chamber 2 (120).
4. A detection device for a large-range pressure sensor as claimed in claim 1, characterized in that: The test assembly 1 (200) further comprises an electromagnetic component (240), a screw rod (250), a fixing seat (260) and a guide rod (280); a fixing seat (260) is fixed on the upper side and the lower side respectively between the two upright posts (230) on the left side of the base plate (210); and a servo motor is installed in the middle of the upper surface of the fixing seat (260) on the upper side of the two upright posts (230) on the left side of the base plate (210).
5. A detection device for a large-range pressure sensor as claimed in claim 4, characterized in that: A screw rod (250) is rotatably mounted between two fixing seats (260) on the two upright posts (230) on the left side of the base plate (210), and the upper end of the screw rod (250) is connected to the output shaft of the servo motor via a coupling; A fixing seat (260) is fixed on the upper side and the lower side respectively between the two upright posts (230) on the right side of the bottom plate (210), and a guide rod (280) is fixed between the two fixing seats (260) on the two upright posts (230) on the right side of the bottom plate (210).
6. A detection device for a large-range pressure sensor as claimed in claim 5, characterized in that: A mounting platform (220) is fixed in the middle of the upper side of the bottom plate (210), a large-range pressure sensor is movably mounted on the upper side of the mounting platform (220), and the center of the mounting platform (220) is colinear with the piston rod axis of the hydraulic cylinder (270).
7. A detection device for a large-range pressure sensor as claimed in claim 6, characterized in that: A nut (241) is installed inside the left end of the electromagnetic component (240), and the left end of the electromagnetic component (240) is movably connected to the screw rod (250) through the nut (241). A through hole (242) is formed through the right end of the electromagnetic component (240) from top to bottom, and the right end of the electromagnetic component (240) is slidably connected to the guide rod (280) through the through hole (242). An annular electromagnet is installed inside the electromagnetic component (240).