Pressure sensor calibration and test electrical integrated device

Abstract

The utility model discloses a pressure sensor calibration and test electrical integrated device comprising a multi-module test device body which comprises a plurality of layers of test modules arranged in a laminated manner; the test module comprises a plurality of calibration test jigs which are arranged in an array; the calibration test fixture can be used for installing a pressure sensor to be tested; wherein the multi-module testing device body comprises a frame, the frame is used for bearing each testing module, and the frame is used for keeping the distance between the testing modules; the calibration test fixture comprises a circuit rapid plugging part and a gas circuit rapid plugging part. By adopting the stacked multi-module design, the utilization efficiency of the test space and the test efficiency are greatly improved; the design of each calibration test fixture comprises a circuit rapid plugging part and a gas path rapid plugging part, so that the test preparation work is simplified, test errors caused by misoperation are reduced, and the test accuracy and repeatability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensor testing, in particular to an electrical integrated device for pressure sensor calibration testing. Background Art

[0002] A pressure sensor is a sensor that can convert physical quantities (such as pressure) into electrical signal outputs. It is widely used in industrial control, automobile manufacturing, medical, consumer electronics, environmental monitoring and other fields. Pressure sensors are widely used, for example, in hydraulic systems to complete closed-loop control of force, in injection molds to monitor pressure, and in many fields such as automobiles, medical equipment, and environmental monitoring. For example, the intake pressure sensor can sense the intake pressure and feed it back to the ECU to control the operation of the intake system; the home portable sphygmomanometer measures blood pressure based on the decompression effect of the cuff; the diffused silicon pressure sensor is based on the piezoresistive effect, using the pressure of the measured medium to act directly on the stainless steel or ceramic on the sensor diaphragm, so that the diaphragm produces a small displacement proportional to the medium pressure, thereby measuring the pressure. Since there are many types of pressure sensors, the size difference is also very large, and the medium interface is also various, the pressure sensor calibration test system requires flexible, convenient, fast, and easy-to-use functions.

[0003] For example, patent application number CN202020180137.0 discloses an automatic calibration and testing device for a pressure sensor, including a lower base, wherein a first guide rail is arranged on both sides of the left and right sides of the middle of the upper end of the lower base, and the inner edge of the first guide rail is connected to a bearing base, a handle is arranged at the front end of the bearing base, and a test box is installed at the upper end of the bearing base, and the test box consists of a calibration storage unit, a test layer and an empty layer. The utility model provides an automatic calibration and testing device for a pressure sensor, which has a good sealing effect and can be suitable for pressure sensors of different packaging forms while ensuring the test accuracy.

[0004] The above solution can truly reflect the current test temperature of the pressure sensor to be tested, thereby achieving a higher calibration accuracy, and can automatically calibrate all current test values. The product limit slot can be replaced according to the packaging or structure of the pressure sensor to be tested; however, this solution still cannot solve the problem that there are currently many types of pressure sensors, and their specifications and sizes vary greatly, and the calibration and test equipment are not compatible with various interfaces. Summary of the invention

[0005] In response to the problem in the prior art mentioned in the background technology that the types and specifications of pressure sensors vary greatly, which makes it impossible for a single calibration test equipment to be compatible with various interfaces, and calibration test equipment has to be designed for various types of pressure sensors, resulting in increased costs, the utility model provides a pressure sensor calibration and test electrical integrated device, which utilizes a test device body integrated with multiple modules to be compatible with pressure sensors of various specifications and realize a quick-disassembly assembly solution.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pressure sensor calibration test electrical integrated device comprises: a multi-module test device body, the multi-module test device body comprises a plurality of test modules arranged in layers; a test module, the test module comprises a plurality of calibration test fixtures arranged in an array; a calibration test fixture, the calibration test fixture can be installed with a pressure sensor to be tested; wherein the multi-module test device body comprises a frame, the frame carries each test module, and the frame maintains the spacing between each test module; wherein the calibration test fixture comprises a circuit quick plug-in portion and a gas path quick plug-in portion.

[0008] The present invention provides an electrical integrated device for calibration and testing of a pressure sensor, which is composed of a plurality of test modules arranged in a stacked manner, each test module including a calibration test fixture arranged in an array for installing a pressure sensor to be tested. This design uses a frame to carry and maintain the spacing between each test module, and at the same time, each calibration test fixture includes a circuit quick plug-in part and a gas circuit quick plug-in part, which is convenient for connecting with the pressure sensor to be tested. The device realizes a high degree of integration and modularization of the test process, and greatly improves the utilization efficiency of the test space through the stacked test modules and fixtures. The quick plug-in circuit and gas circuit components reduce the test preparation time and improve the efficiency of the test process. Compared with traditional decentralized or single test benches, this invention significantly optimizes the floor space and operation process of the test equipment through modular and stacked design. The design of the quick plug-in interface simplifies the test preparation work and reduces the test cycle. Especially in a production environment where a large number of repeated tests are required, this design can significantly improve the overall test efficiency and flexibility. Considering its modular characteristics, the potential creativity of this device may include customized test modules for different types of pressure sensors, such as sensors of different sizes, shapes or test parameter requirements, providing a wider range of applications. In addition, the design of the quick-plug parts of the circuit and gas circuit can be further optimized to adapt to a higher degree of automation, such as using a robot to automatically replace the sensor to be tested, further improving test efficiency.

[0009] Preferably, the calibration test module comprises a chassis and several calibration test fixtures arranged on the chassis, and the calibration test fixture comprises a pressure seat slidably arranged on the chassis, and the pressure seat can move in a direction perpendicular to the several calibration test fixtures arranged in an array. The test module comprises a chassis and a calibration test fixture mounted on the chassis; each fixture comprises a pressure seat movable in a vertical direction, allowing the pressure seat to move along the direction of the fixture arranged in the array, so as to facilitate the rapid replacement of the internal components of the pressure seat. This design makes the entire test device more superior in space utilization and test flexibility. The movable pressure seat allows accurate testing of pressure sensors of different heights or sizes, increasing the scope of application and flexibility of the equipment. Compared with traditional fixed test devices, the movable pressure seat design provides greater adaptability and flexibility, especially when facing diversified pressure sensor products. In addition, this design simplifies the adjustment process of the equipment, enabling it to quickly adapt to the needs of different test objects, thereby improving test efficiency and reducing operation complexity. In particular, those skilled in the art can further develop a pressure seat with an automatic adjustment function that can automatically adjust its position according to the size and test parameters of the sensor. The entire test platform can integrate more advanced sensing technologies, such as automatically detecting the size of the sensor to be tested and adjusting the position of the pressure seat for the best match, to achieve a higher degree of automation and intelligence.

[0010] Furthermore, a pressure sensor to be tested is installed on the pressure seat, a PCB board bracket is provided on the top of the pressure seat, and a PCB board for testing is installed in the PCB board bracket. This means that each pressure seat can not only move, but also is specially configured with a PCB board for performing tests and data acquisition. This design realizes the direct acquisition and processing of test signals, and improves the accuracy and speed of signal processing. The close arrangement of the PCB board reduces interference during signal transmission and improves the reliability of test data. Compared with long-distance signal transmission and centralized processing, the PCB board is directly installed on the top of each pressure seat, which means that each test unit has independent signal processing capabilities. This design greatly improves the parallel processing capability and efficiency of the test system, and is particularly suitable for the rapid testing requirements in large-scale production environments. Based on this design, those skilled in the art can develop programmable PCB boards that allow on-site or remote reconfiguration of test parameters and logic to adapt to different test requirements and standards. In addition, it is possible to explore the integration of artificial intelligence algorithms into PCB boards to achieve automatic decision-making and optimization during the test process, such as automatic identification of fault modes, and provide more intelligent test solutions.

[0011] Furthermore, a pressure source pipeline is provided in the pressure seat, and the pressure source pipeline is provided with a gas circuit quick plug-in interface; and a circuit quick plug-in interface is provided on the side of the PCB board bracket. Each pressure seat can not only be directly connected to the PCB board, but also quickly access the gas circuit and circuit to achieve rapid installation and testing of the pressure sensor to be tested. Through the quick plug-in interface, this design greatly improves the efficiency of test preparation and reduces the time required for sensor installation and connection. At the same time, it also reduces the risk of human operating errors and improves the stability and repeatability of the test process. The ability to quickly replace test samples is particularly suitable for scenarios where a large number of tests are required on the production line. Compared with the traditional fixed connection method, the quick plug-in interface provides obvious operational convenience and efficiency improvement. Focusing on improving the automation and adaptability of the test process, allowing the test equipment to quickly adapt to different types of pressure sensors. In addition, it also supports rapid troubleshooting and maintenance, reducing production downtime. On this basis, this solution can be further expanded, including the development of more intelligent quick plug-in interfaces, for example, interfaces that can automatically identify the type of connected sensor and adjust test parameters. In addition, the use of IoT technology can also be explored to achieve intelligent communication between test equipment and sensors to optimize the test process and improve the efficiency of data collection.

[0012] Preferably, the pressure seat includes sensor mounting points arranged on both sides of the PCB board, and the sensor mounting points are connected to the pressure source pipeline; the PCB board is electrically connected to each sensor mounting point. Such a design enables the sensor on each mounting point to directly receive input from the pressure source, and at the same time process and analyze the electrical signal through the PCB board. This optimization scheme enables the test device to perform accurate pressure testing and signal processing on multiple sensors at the same time, thereby improving the test efficiency. The direct pipeline connection ensures the accuracy and consistency of pressure transmission, while the integrated processing capability of the PCB board ensures the high efficiency of signal analysis. By optimizing the installation and connection methods of the sensors, the adaptability of the test device to different test objects and the parallelism of the test process are improved. Compared with the traditional method that requires each sensor to be set and adjusted separately, this integrated and standardized design significantly improves the convenience of operation and the reliability of the test. In addition, this scheme also includes the development of a more highly integrated test platform that can automatically adjust the pressure seat and PCB board to adapt to sensors of various models and specifications. At the same time, we can explore the introduction of more advanced sensing and control technologies, such as pressure and temperature dual-parameter testing, and automated test sequence programming to further enhance the performance and application scope of the test device.

[0013] Furthermore, a plurality of mounting rails are provided on the chassis, and the pressure seat can be detachably mounted in the mounting rails. This design allows the pressure seat to be moved or reorganized on the chassis according to the test requirements, which increases the flexibility and adaptability of the device, so that the test device can be easily adjusted to accommodate pressure sensors of different sizes and types. By introducing a detachable and position-adjustable pressure seat installation mechanism, the design significantly improves the versatility and flexibility of the test device. This not only simplifies the test process of pressure sensors of different models, but also facilitates the rapid replacement or updating of test configurations, thereby improving the overall efficiency of the test device and the adaptability of the production line. Compared with traditional fixed or single-configuration test devices, the design of detachable mounting rails enables the device to quickly adapt to changing test requirements, especially when test items need to be frequently changed or when facing diversified product testing requirements. This design reduces the need for customized fixtures for specific models, reduces the cost of equipment updates and maintenance, and improves the efficiency and economy of the device.

[0014] Furthermore, an automatic identification system is developed to automatically identify the model and specifications of the pressure sensor to be tested through machine vision or RFID technology, and then automatically adjust the position of the pressure seat or select a suitable test program. In addition, considering the development trend of intelligent manufacturing and Industry 4.0, the design of this test device can also be integrated into a wider intelligent production system to achieve intelligent collaboration with other production equipment, further improving production efficiency and automation level.

[0015] Preferably, the frame includes a base plate and a plurality of longitudinal pillars arranged at the edge of the base plate, and the pillars are detachably connected to each test module. A sturdy and flexible structural framework is provided, which not only ensures the stability of the device, but also allows the position of the test module to be easily replaced or adjusted as needed. It provides a high degree of modularity and customizability, so that the test device can quickly adapt to different test requirements and working environments. With detachable pillars and modules, maintenance and upgrades become simpler and faster, effectively reducing maintenance costs in long-term operations. Compared with traditional integrated or fixed structure test devices, this detachable design of the frame structure has obvious advantages in flexibility, maintainability and scalability. It allows users to quickly adjust the configuration of the test platform according to actual needs without replacing the entire equipment, thereby adapting to changing production and testing needs.

[0016] In the present invention, the device application scenarios can be further enriched, including the development of a series of standardized modules with different functions, which users can select and combine according to specific test requirements to achieve "plug and play" functional expansion. In addition, it is possible to consider combining this modular concept with cloud computing technology, providing various test programs and configuration options through the cloud platform, which users can remotely download and update as needed, to achieve intelligent and networked management of the test device.

[0017] Preferably, a positioning angle code is installed on the pillar, and a fixing hole is provided on the positioning angle code. This design provides an accurate reference point for the installation and positioning of the test module, ensuring the accuracy and stability of the installation of the test module. The use of the positioning angle code simplifies the installation process of the test module and ensures the stability and reliability after installation. Through the fixing hole, it can be ensured that the test module maintains a consistent position during multiple disassembly and reassembly processes, reducing the test deviation caused by installation errors.

[0018] Compared with the installation method that relies on manual measurement and positioning, the positioning angle code provides a fast, simple and highly repeatable solution. This design is particularly suitable for application scenarios that require frequent replacement or adjustment of test modules, significantly improving the flexibility of the equipment and the convenience of user operation.

[0019] Therefore, the utility model has the following beneficial effects:

[0020] (1) The pressure sensor calibration test electrical integrated device adopts a multi-module, stacked design, combined with quick-plug circuit and gas line interfaces, which significantly improves the space utilization and operating efficiency of the test device. This design not only optimizes the use of workshop space, but also greatly improves the overall test efficiency by reducing test preparation time and improving the automation of the test process.

[0021] (2) The device provides extremely high flexibility and adaptability by introducing a movable pressure seat and a chassis design with mounting rails. This enables the device to be quickly adjusted to accommodate pressure sensors of different sizes and specifications, without the need to customize a dedicated test device for each sensor, thereby greatly improving the versatility of the equipment and the flexibility of the production line.

[0022] (3) It shows that the integrated PCB board and the pressure seat designed with a quick plug-in interface can be directly and tightly connected to the pressure sensor to be tested. This close direct connection reduces interference during signal transmission and improves the accuracy of signal processing. At the same time, this also simplifies the structure of the test equipment, reduces the failure rate caused by complex connections, and ensures the accuracy and stability of the test process.

[0023] (4) The modular design of the device not only facilitates routine maintenance and troubleshooting, but also simplifies equipment upgrades and configuration changes. The detachable modules and the support design with positioning angles make it easy and quick to replace or upgrade the test module without the need for specialized tools or long downtime, thereby effectively reducing the overall maintenance cost of the equipment.

[0024] (5) The design concept and implementation details of the device provide a solid foundation for the automation and intelligence of the test device. In particular, the integrated PCB board design, quick plug-in interface and modular structure not only make it possible to achieve more advanced automated testing, but also provide space for the introduction of machine learning and artificial intelligence technologies into the testing process in the future, which is expected to achieve a more efficient and intelligent production test environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 yes Figure 1 Side view of the calibration test fixture.

[0027] The multi-module test device body 100, the test module 1, the chassis 11, the mounting rail 12, the positioning angle code 13, the fixing hole 14, the calibration test fixture 2, the pressure seat 21, the PCB board bracket 22, the PCB board 23, the sensor mounting point 24, the test socket 25, the frame 3, the longitudinal support 31, the circuit quick plug-in part 4, and the gas circuit quick plug-in part 5. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Example 1

[0030] like Figure 1 , 2As shown, a pressure sensor calibration test electrical integration device, a multi-module test device body 100, the multi-module test device body 100 includes a plurality of test modules 1 arranged in layers; test module 1, the test module 1 includes a plurality of calibration test fixtures 2 arranged in an array; calibration test fixture 2, the calibration test fixture 2 can be installed with the pressure sensor to be tested; wherein, the multi-module test device body 100 includes a frame 3, the frame 3 carries each test module 1, and the frame 3 maintains the spacing between each test module 1; wherein, the calibration test fixture 2 includes a circuit quick plug-in portion 4 and a gas circuit quick plug-in portion 5. The present invention provides a pressure sensor calibration test electrical integration device, which is composed of a plurality of test modules 1 arranged in layers, each test module 1 includes a calibration test fixture 2 arranged in an array, which is used to install the pressure sensor to be tested. This design uses the frame 3 to carry and maintain the spacing between each test module 1, and at the same time, each calibration test fixture 2 includes a circuit quick plug-in portion 4 and a gas circuit quick plug-in portion 5, which is convenient for connection with the pressure sensor to be tested. This device achieves a high degree of integration and modularization of the test process, and greatly improves the utilization efficiency of the test space through the stacked test modules 1 and fixtures. The quick-plug circuit and gas path components reduce the test preparation time and improve the efficiency of the test process. Compared with traditional decentralized or single test benches, this invention significantly optimizes the floor space and operation process of the test equipment through modular and stacked designs. The design of the quick-plug interface simplifies test preparation and reduces the test cycle, especially in a production environment that requires a large number of repeated tests. This design can significantly improve the overall test efficiency and flexibility. Considering its modular nature, the potential creativity of this device may include customized test modules 1 for different types of pressure sensors, such as sensors of different sizes, shapes or test parameter requirements, providing a wider range of applications.

[0031] The calibration test module 1 includes a chassis 11 and a plurality of calibration test fixtures 2 arranged on the chassis 11. The calibration test fixtures 2 include a pressure seat 21 slidably arranged on the chassis 11. The pressure seat 21 can move in a direction perpendicular to the plurality of calibration test fixtures 2 arranged in an array. A pressure sensor to be tested is installed on the pressure seat 21. A PCB board bracket 22 is arranged on the top of the pressure seat 21. A PCB board 23 for testing is installed in the PCB board bracket 22. A pressure source pipeline is arranged in the pressure seat 21. The pressure source pipeline is provided with a gas circuit quick plug-in interface; the side of the PCB board bracket 22 is provided with a circuit quick plug-in interface. The pressure seat 21 includes sensor mounting points 24 arranged on both sides of the PCB board 23. The sensor mounting points 24 are connected to the pressure source pipeline; the PCB board 23 is electrically connected to each sensor mounting point 24. A plurality of mounting rails 12 are arranged on the chassis 11. The pressure seat 21 can be detachably mounted in the mounting rails 12. In detail, a test socket 25 is provided on both sides of the PCB board 23 and matched in each sensor installation point 24 for providing power to each sensor to be tested, so as to keep the power supply and test system stable.

[0032] The test module 1 includes a chassis 11 and a calibration test fixture 2 mounted on the chassis 11; each fixture includes a pressure seat 21 that can be moved in a vertical direction, allowing the pressure seat 21 to move along the direction of the fixture arranged in an array, so as to facilitate the rapid replacement of the internal components of the pressure seat 21. This design makes the entire test device more superior in space utilization and test flexibility. The movable pressure seat 21 allows accurate testing of pressure sensors of different heights or sizes, increasing the scope of application and flexibility of the device. Compared with traditional fixed test devices, the movable pressure seat 21 design provides greater adaptability and flexibility, especially when facing diversified pressure sensor products. In addition, this design simplifies the adjustment process of the equipment, enabling it to quickly adapt to the needs of different test objects, thereby improving test efficiency and reducing operational complexity. Each pressure seat 21 is not only movable, but also specially configured with a PCB board 23 for performing tests and data acquisition. This design realizes the direct acquisition and processing of test signals, and improves the accuracy and speed of signal processing. The close arrangement of the PCB board 23 reduces interference during signal transmission and improves the reliability of test data. Compared with long-distance signal transmission and centralized processing, installing the PCB board 23 directly on the top of each pressure seat 21 means that each test unit has independent signal processing capabilities. This design greatly improves the parallel processing capability and efficiency of the test system, and is particularly suitable for rapid testing requirements in large-scale production environments. Based on this design, those skilled in the art can develop a programmable PCB board 23 that allows on-site or remote reconfiguration of test parameters and logic to adapt to different test requirements and standards. In addition, it is possible to explore integrating artificial intelligence algorithms into the PCB board 23 to achieve automatic decision-making and optimization during the test process, such as automatically identifying failure modes, and providing more intelligent test solutions.

[0033] Each pressure seat 21 can not only be directly connected to the PCB board 23, but also quickly access the gas circuit and circuit to achieve rapid installation and testing of the pressure sensor to be tested. Through the quick plug-in interface, this design greatly improves the efficiency of test preparation and reduces the time required for sensor installation and connection. At the same time, it also reduces the risk of human operating errors and improves the stability and repeatability of the test process. The ability to quickly replace test samples is particularly suitable for scenarios where a large number of tests are required on the production line. Compared with the traditional fixed connection method, the quick plug-in interface provides obvious operational convenience and efficiency improvement. The focus is on improving the automation and adaptability of the test process, allowing the test equipment to quickly adapt to different types of pressure sensors. In addition, it also supports rapid troubleshooting and maintenance, reducing production downtime. On this basis, further expansion can be made, including the development of more intelligent quick plug-in interfaces, for example, interfaces that can automatically identify the type of connected sensor and adjust test parameters. In addition, it is also possible to explore the use of Internet of Things technology to achieve intelligent communication between test equipment and sensors to optimize the test process and improve the efficiency of data collection.

[0034] This embodiment enables the test device to perform accurate pressure testing and signal processing on multiple sensors at the same time, thereby improving the test efficiency. The direct pipeline connection ensures the accuracy and consistency of pressure transmission, and the integrated processing capability of the PCB board 23 ensures the high efficiency of signal analysis. By optimizing the installation and connection mode of the sensor, the adaptability of the test device to different test objects and the parallelism of the test process are improved. Compared with the traditional method that requires individual setting and adjustment of each sensor, this integrated and standardized design significantly improves the convenience of operation and the reliability of the test. In addition, this solution also includes the development of a more highly integrated test platform that can automatically adjust the pressure seat 21 and the PCB board 23 to adapt to sensors of various models and specifications. At the same time, it is possible to explore the introduction of more advanced sensing and control technologies, such as pressure and temperature dual parameter testing, and automated test sequence programming, to further enhance the performance and application scope of the test device.

[0035] This design allows the pressure seat 21 to be moved or reorganized on the chassis 11 according to the test requirements, which increases the flexibility and adaptability of the device and enables the test device to be easily adjusted to accommodate pressure sensors of different sizes and types. By introducing a detachable and position-adjustable pressure seat 21 installation mechanism, the design significantly improves the versatility and flexibility of the test device. This not only simplifies the test process for pressure sensors of different models, but also facilitates the rapid replacement or updating of test configurations, thereby improving the overall efficiency of the test device and the adaptability of the production line. Compared with traditional fixed or single-configuration test devices, the design of the detachable mounting rail 12 enables the device to quickly adapt to changing test requirements, especially when test items need to be changed frequently or when facing diversified product testing requirements. This design reduces the need for customized fixtures for specific models, reduces the cost of equipment updates and maintenance, and improves the efficiency and economy of the device.

[0036] Furthermore, an automatic identification system is developed to automatically identify the model and specification of the pressure sensor to be tested through machine vision or RFID technology, and then automatically adjust the position of the pressure seat 21 or select a suitable test program. In addition, considering the development trend of intelligent manufacturing and Industry 4.0, the design of this test device can also be integrated into a wider intelligent production system to achieve intelligent collaboration with other production equipment, further improving production efficiency and automation level.

[0037] The frame 3 includes a bottom plate and a plurality of longitudinal pillars 31 arranged at the edge of the bottom plate, and the pillars are detachably connected to each test module 1. Positioning angle codes 13 are installed on the pillars, and fixing holes 14 are arranged on the positioning angle codes 13. A sturdy and flexible structural frame 3 is provided, which not only ensures the stability of the device, but also allows the position of the test module 1 to be easily replaced or adjusted as needed. It also provides an accurate reference point for the installation and positioning of the test module 1, ensuring the accuracy and stability of the installation of the test module 1.

[0038] It provides a high degree of modularity and customizability, allowing the test device to quickly adapt to different test requirements and working environments. With detachable pillars and modules, maintenance and upgrades become simpler and faster, effectively reducing maintenance costs in long-term operations. Compared with traditional integrated or fixed structure test devices, this detachable frame 3 structure has obvious advantages in flexibility, maintainability and scalability. It allows users to quickly adjust the configuration of the test platform according to actual needs without replacing the entire device, thereby adapting to changing production and testing needs.

[0039] In the present invention, the device application scenarios can be further enriched, including the development of a series of standardized modules with different functions, which users can select and combine according to specific test requirements to achieve "plug and play" functional expansion. In addition, it is possible to consider combining this modular concept with cloud computing technology, providing various test programs and configuration options through the cloud platform, which users can remotely download and update as needed, to achieve intelligent and networked management of the test device.

[0040] The use of the positioning angle code 13 simplifies the installation process of the test module 1 and ensures stability and reliability after installation. The fixing hole 14 can ensure that the test module 1 maintains a consistent position during multiple disassembly and reassembly processes, reducing test deviations caused by installation errors. Compared with the installation method that relies on manual measurement and positioning, the positioning angle code 13 provides a fast, simple and highly repeatable solution. This design is particularly suitable for application scenarios that require frequent replacement or adjustment of the test module 1, significantly improving the flexibility of the equipment and the convenience of user operation.

[0041] The pressure sensor calibration test electrical integrated device provided by the present invention, through its highly integrated and modular design, not only shows significant advantages in improving the utilization efficiency of the test space, the efficiency of the test process, and reducing the test preparation time, but also provides improvements in adaptability, flexibility and accuracy.

[0042] In this embodiment, we describe in detail the operation process of an electrical integrated device for calibration and testing of a pressure sensor and its overall use scheme. The device adopts a multi-module test device body 100, which includes four layers of stacked test modules 1, wherein each test module 1 is composed of a number of calibration test fixtures 2 arranged in an array, and these fixtures are specially designed for installing the pressure sensor to be tested. In addition, the multi-module test device body 100 includes a frame 3, which not only carries each test module 1, but also maintains the spacing between each test module 1 for easy operation and maintenance. Each calibration test fixture 2 includes a circuit quick plug-in part 4 and an air circuit quick plug-in part 5, which makes it convenient and quick to connect with the pressure sensor to be tested.

[0043] In this embodiment, the operation process starts from the preparation stage. The technician first selects the appropriate test module 1 and installs it in the frame 3 of the multi-module test device according to the specific model of the pressure sensor to be tested and the test requirements. Since the test modules 1 are arranged in a stacked manner, this process can be carried out by simple disassembly and installation without the use of complex tools or equipment. Next, the technician installs the pressure sensor to be tested on the calibration test fixture 2. Since each fixture includes a circuit quick-plug part 4 and a gas circuit quick-plug part 5, the connection process is fast and simple, which greatly reduces the test preparation time.

[0044] Once all the pressure sensors to be tested are properly installed in place, the test process can begin. The technician activates the device through the control system, and each test module 1 will automatically perform a pressure test while collecting and recording the test data. Since a PCB board bracket 22 is provided on the top of each calibration test fixture 2, and a test PCB board is installed in the bracket, the direct acquisition and processing of the test signal can be achieved, ensuring the accuracy and speed of signal processing. During the test, if it is necessary to replace or adjust certain components in the pressure seat 21, the technician can easily operate it, because each fixture contains a pressure seat 21 that can be moved in the vertical direction, allowing for quick replacement. After the test is completed, the technician can quickly remove the pressure sensor through the quick plug-in part of the circuit and gas circuit, and then analyze the test data. If it is necessary to test different models of pressure sensors, the technician can easily replace the test module 1 or adjust the fixture in the existing module to meet different test requirements. This flexibility and adaptability is due to the highly integrated and modular design of the device, which enables the test equipment to quickly adapt to changing test requirements.

Claims

1. An electrical integrated device for calibration and testing of pressure sensors, It is characterized in that Included are: A multi-module test device body, the multi-module test device body comprising a plurality of test modules arranged in layers; A test module, the test module includes a plurality of calibration test fixtures arranged in an array; Calibration test fixture, which can be used to install the pressure sensor to be tested; Wherein, the multi-module test device body includes a frame, the frame carries each test module, and the frame maintains the spacing between each test module; Wherein, the calibration test fixture includes a circuit quick plug-in part and a gas circuit quick plug-in part.

2. The pressure sensor calibration and testing electrical integrated device according to claim 1, It is characterized in that The test module includes a chassis and a plurality of calibration test fixtures arranged on the chassis. The calibration test fixture includes a pressure seat slidably arranged on the chassis, and the pressure seat can move in a direction perpendicular to the plurality of calibration test fixtures arranged in an array.

3. The pressure sensor calibration and testing electrical integrated device according to claim 2, It is characterized in that A pressure sensor to be tested can be installed on the pressure seat, a PCB board bracket is arranged on the top of the pressure seat, and a PCB board is installed in the PCB board bracket.

4. The pressure sensor calibration and testing electrical integrated device according to claim 3, It is characterized in that A pressure source pipeline is arranged in the pressure seat, and a gas circuit quick plug-in interface is arranged in the pressure source pipeline; a circuit quick plug-in interface is arranged on the side of the PCB bracket.

5. The pressure sensor calibration and testing electrical integrated device according to claim 4, It is characterized in that The pressure seat includes sensor mounting points arranged on both sides of the PCB board, and the sensor mounting points are communicated with the pressure source pipeline; the PCB board is electrically connected to each sensor mounting point.

6. The pressure sensor calibration and testing electrical integrated device according to claim 2, It is characterized in that A plurality of mounting rails are arranged on the chassis, and the pressure seat can be detachably mounted in the mounting rails.

7. An electrical integrated device for calibration and testing of a pressure sensor according to any one of claims 1 to 6, It is characterized in that The frame comprises a bottom plate and a plurality of longitudinal pillars arranged at the edge of the bottom plate, and the pillars are detachably connected to each test module.

8. The pressure sensor calibration and testing electrical integrated device according to claim 7, It is characterized in that A positioning angle code is installed on the pillar, and a fixing hole is arranged on the positioning angle code.

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