Test system capable of connecting multiple pressure sensors
By designing a multiple pressure sensor testing system including a transit box, a switching switch and a PC terminal, the problem of difficulty in testing multiple pressure sensors at the same time in the prior art is solved, and efficient and low-cost testing results are achieved.
Patent Information
- Application Number
- CN202421471650.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2035-04-10
AI Technical Summary
The prior art is difficult to efficiently test multiple pressure sensors at the same time, and it is costly, so it is impossible to batch collect non-standard signals such as mV/V output signals.
A test system that can be connected to multiple pressure sensors is designed, including a transit box, multiple pressure sensors, power supply, switching switch, PC terminal and multimeter. The transit box receives the output signal of the pressure sensor and feeds it back to the multimeter. The switching switch and PC terminal are used for semi-automatic or automatic switching, reducing equipment costs.
It realizes efficient testing of multiple pressure sensors, avoids the problem of slow efficiency of a single test, reduces equipment costs, and has the characteristics of strong versatility. Automatic or semi-automatic acquisition can be achieved without automatic pressurization equipment.
Smart Images
Figure CN222882197U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure sensor testing, in particular to a testing system capable of connecting multiple pressure sensors. Background Art
[0002] A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to certain rules. Pressure sensors are usually composed of pressure sensitive elements and signal processing units. According to different test pressure types, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors. Pressure sensors are the most commonly used sensors in industrial practice. They are widely used in various industrial automatic control environments, involving many industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines, etc.
[0003] At present, during the production process of pressure sensors, it is necessary to collect data from the sensors multiple times to test their performance. In order to ensure the production efficiency, it is best to collect data from multiple pressure sensors at the same time. The mature batch acquisition system on the market requires expensive automatic pressurization equipment and batch data acquisition boards. The mature batch acquisition system can generally only collect standard analog signals such as 4-20mA, and cannot batch collect the mV / V output signals of the sensor. Therefore, a test system that can connect multiple pressure sensors is proposed to solve the above problems. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a test system capable of connecting multiple pressure sensors in view of the deficiencies in the above-mentioned prior art.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a test system that can connect multiple pressure sensors, including: a transfer box, multiple pressure sensors, a power supply, a switching switch, a PC terminal and a multimeter;
[0006] The multiple pressure sensors are connected to the transfer box to monitor the pressure data;
[0007] The power supply is electrically connected to the transfer box and is used to provide power to the transfer box;
[0008] The multimeter is connected to the transfer box and is used to feed back the data monitored by the pressure sensor, receive the output signal of the pressure sensor through the transfer box, and then feed back to the multimeter;
[0009] The switching switch is connected to the transfer box and is used to perform rotation switching on multiple pressure sensors;
[0010] The PC terminal is connected to the multimeter and is used to collect data collected by the multimeter. The setting of the PC terminal can feedback and display the collected data, which is convenient for the staff to view the collected test data.
[0011] By being able to test multiple pressure sensors, the problem of slow testing efficiency of a single pressure sensor is avoided. When multiple pressure sensors are connected to the transfer box, it is necessary to switch the multiple pressure sensors in rotation through a switching switch. Semi-automatic switching can be performed by switching the switch or automatic switching can be performed by controlling the transfer box through the PC. The switching method can be selected independently according to the actual situation. There is no need to design various batch data boards for various chips of pressure sensor integrated circuits. It has strong versatility and does not require automatic pressurization equipment to control the pressure, which reduces equipment costs. It can be set to automatic or semi-automatic acquisition according to the manufacturer's pressure equipment.
[0012] Preferably, the plurality of pressure sensors are connected to the transfer box via aviation plugs.
[0013] Preferably, the PC is connected to the multimeter via a serial port, and the host computer of the PC is used to collect data collected by the multimeter. The data displayed by the multimeter can only display the data of one pressure sensor at a time. When multiple pressure sensors are connected to the transfer box, it is necessary to switch the multiple pressure sensors in rotation through a switching switch. Semi-automatic switching can be performed by switching the switch, or automatic switching can be performed by controlling the transfer box through the PC. The switching method can be selected independently according to actual conditions.
[0014] Preferably, the transfer box is connected to the PC via a serial port, wherein the transfer box 1 is provided with a plurality of interfaces that can be docked with pressure sensors, so as to facilitate docking with a plurality of pressure sensors at the same time, thereby facilitating testing of the plurality of pressure sensors.
[0015] Preferably, the power supply is electrically connected to multiple pressure sensors through a transfer box. The power supply simultaneously provides 10Vdc and 24VDC power and is connected to the transfer box. The multiple pressure sensors are powered by 10Vdc and the pressure transmitter is powered by 24Vdc.
[0016] The utility model adopts the above technical solution, which can bring the following beneficial effects:
[0017] The test system can be connected to multiple pressure sensors, and can test multiple pressure sensors, avoiding the problem of slow testing efficiency of a single pressure sensor. When multiple pressure sensors are connected to the transfer box, it is necessary to switch the multiple pressure sensors in rotation through a switching switch, and semi-automatic switching can be performed by switching the switch or automatic switching can be performed by controlling the transfer box through the PC. The switching method can be independently selected according to the actual situation, and there is no need to design various batch data boards for various chips of pressure sensor integrated circuits. It has strong versatility and does not need to control the pressure through automatic pressurization equipment, which reduces the equipment cost. It has the function of simultaneously connecting 4-20mA or mV / V input signals, and can be set to automatic or semi-automatic acquisition according to the manufacturer's pressure equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the system framework of the utility model;
[0019] Figure 2 This is the integrated schematic diagram of the transfer box of the utility model.
[0020] In the figure: 1. Transfer box; 2. Multiple pressure sensors; 3. Power supply; 4. Switch; 5. PC terminal; 6. Multimeter. DETAILED DESCRIPTION
[0021] 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.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] See also Figure 1-2 ,The technical solution of the utility model is: a test system that can connect multiple pressure sensors, including: a transfer box 1, multiple pressure sensors 2, a power supply 3, a switch 4, a PC terminal 5 and a multimeter 6;
[0024] A plurality of pressure sensors 2 are connected to the transfer box 1 for monitoring pressure data;
[0025] The power source 3 is electrically connected to the transfer box 1 and is used to provide power to the transfer box 1 so that the transfer box 1 can operate stably;
[0026] The multimeter 6 is connected to the transfer box 1 and is used to feed back the data monitored by the pressure sensor. The output signal of the pressure sensor is received through the transfer box 1 and then fed back to the multimeter 6.
[0027] The switching switch 4 is connected to the transfer box 1 and is used to perform rotation switching on the multiple pressure sensors 2;
[0028] The PC terminal 5 is connected to the multimeter 6 and is used to collect data collected by the multimeter 6. The setting of the PC terminal 5 can feedback and display the collected data, so that the staff can view the collected test data conveniently.
[0029] A plurality of pressure sensors 2 are connected to the transfer box 1 via aviation plugs.
[0030] The PC end 5 is connected to the multimeter 6 through the serial port, and the data collected by the multimeter 6 is collected by the host computer of the PC end 5. The data displayed by the multimeter 6 can only display the data of one pressure sensor at a time. When multiple pressure sensors 2 are connected to the transfer box 1, it is necessary to switch the multiple pressure sensors 2 in rotation through the switching switch 4. Semi-automatic switching can be performed by switching the switch 4, or automatic switching can be performed by controlling the transfer box 1 through the PC end 5. The switching method can be selected independently according to the actual situation.
[0031] The transfer box 1 is connected to the PC terminal 5 via a serial port, wherein the transfer box 1 is provided with a plurality of interfaces that can be connected to the pressure sensors, so that it is convenient to connect to a plurality of pressure sensors at the same time, thereby facilitating the testing of the plurality of pressure sensors.
[0032] The power supply 3 is electrically connected to the multiple pressure sensors 2 through the transfer box 1. The power supply 3 provides 10Vdc and 24VDC power at the same time, and is connected to the transfer box 1. The multiple pressure sensors 2 are powered by 10Vdc, and the pressure transmitter is powered by 24Vdc.
[0033] It should be noted that the technical requirements for the circuit boards involved in the transfer box 1 are as follows:
[0034] JD.PCB: length: 21.5cm; width: 11cm.
[0035] AJ.PCB: length: 18cm; width: 3.3cm.
[0036] Material: FR-4 double-sided epoxy copper clad laminate δ = 1.6mm, the thickness of the coated copper is 1OZ;
[0037] Solder mask coverage: via cover oil;
[0038] Solder mask color: green;
[0039] Character color: white;
[0040] Pad plating: lead tin plating.
[0041] Multiple pressure sensors 2 can be tested, avoiding the problem of slow testing efficiency of a single pressure sensor. When multiple pressure sensors 2 are connected to the transfer box 1, it is necessary to switch the multiple pressure sensors 2 in rotation through the switching switch 4. Semi-automatic switching can be performed by switching the switch 4, or the transfer box 1 can be automatically switched by controlling the transfer box 1 through the PC terminal 5. The switching method can be selected independently according to the actual situation. There is no need to design various batch data boards for various chips of pressure sensor integrated circuits. It has strong versatility and does not need to control the pressure through automatic pressurization equipment, which reduces equipment costs. It has the function of simultaneously receiving 4-20mA or mV / V input signals, and can be set to automatic or semi-automatic acquisition according to the manufacturer's pressure equipment.
[0042] The utility model provides a test system that can connect multiple pressure sensors. There are many methods and ways to implement the technical solution. The above is only the preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.
Claims
1. A test system that can connect multiple pressure sensors, characterized in that: It includes: a transfer box (1), a plurality of pressure sensors (2), a power supply (3), a switch (4), a PC terminal (5) and a multimeter (6); The plurality of pressure sensors (2) are connected to the transfer box (1) and are used to monitor pressure data; The power source (3) is electrically connected to the transfer box (1) and is used to provide power to the transfer box (1); The multimeter (6) is connected to the transfer box (1) and is used to provide feedback on the data monitored by the pressure sensor; The switching switch (4) is connected to the transfer box (1) and is used to perform rotation switching on the plurality of pressure sensors (2); The PC end (5) is connected to the multimeter (6) and is used to collect data collected by the multimeter (6).
2. A test system capable of connecting multiple pressure sensors according to claim 1, characterized in that: The plurality of pressure sensors (2) are connected to the transfer box (1) via aviation plugs.
3. The test system capable of connecting multiple pressure sensors according to claim 1, characterized in that: The PC end (5) is connected to a multimeter (6) via a serial port.
4. The test system capable of connecting multiple pressure sensors according to claim 1, characterized in that: The transfer box (1) is connected to the PC terminal (5) via a serial port.
5. The test system capable of connecting multiple pressure sensors according to claim 1, characterized in that: The power source (3) is electrically connected to a plurality of pressure sensors (2) via a transfer box (1).