Multi-station linear displacement sensor automatic test system

Abstract

The utility model belongs to the test field, and discloses a multi-station linear displacement sensor automatic test system comprising a displacement generation device, a signal generation device, a signal acquisition device and a data processing device; the signal generation device is provided with at least two stations for mounting the displacement sensors, after the displacement sensors are mounted on the signal acquisition device, the output ends of the displacement sensors are connected with a data signal acquisition unit on the signal acquisition device through cables, and the displacement generation device is connected with the input ends of the displacement sensors through cables; meanwhile, the displacement generating device is connected with a data signal acquisition unit on the signal acquisition device through a cable; the data signal acquisition unit is in communication connection with the data processing device; the data processing device is in communication connection with the displacement generating device, and the displacement generating device is mechanically connected with a rod body of the displacement sensor. According to the utility model, automatic testing can be realized, the human input of sensor testing is reduced, the cost is reduced, and the testing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the test field relates to a linear displacement sensor automatic testing device, specifically relates to a kind of multi-station linear displacement sensor automatic testing system. BACKGROUND

[0002] Linear displacement sensor is usually tested using single-station and single-channel test system, which is inefficient and not suitable for mass production. Moreover, it usually requires manual recording and calculation of data, consuming a lot of manpower. Therefore, it is necessary to invent a multi-station linear displacement sensor automatic testing system.

[0003] To achieve high-efficiency fully-automatic testing, it is necessary to realize multi-station automatic testing, multi-channel signal acquisition and automatic processing of test data. SUMMARY

[0004] To solve the above problems, the utility model provides a kind of multi-station linear displacement sensor automatic testing system, can complete the simultaneous testing of multiple displacement sensors, save cost, improve efficiency.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of multi-station linear displacement sensor automatic testing system, comprising displacement generating device, signal generating device, signal acquisition device and data processing device;Signal generating device is provided with at least two installation displacement sensor's station, displacement sensor is installed on signal acquisition device, after displacement sensor's output end is connected with the data signal acquisition unit on signal acquisition device through cable, displacement generating device is connected with the input end of displacement sensor through cable, simultaneously displacement generating device is connected with the data signal acquisition unit on signal acquisition device through cable;Data signal acquisition unit is connected with data processing device communication connection;Data processing device is connected with displacement generating device communication connection, displacement generating device is connected with the rod body of displacement sensor mechanically.

[0007] Further, the displacement generating device includes a controller and a precision lead screw sliding table. The controller is connected to the precision lead screw sliding table. The output end of the precision lead screw sliding table is connected to the rod bodies of all displacement sensors in all stations.

[0008] Further, all displacement sensor stations are arranged in parallel on the same plane.

[0009] Further, the data signal acquisition unit of the signal acquisition device includes a digital I / O card, a DMM tester and a data acquisition card. The output end of the displacement sensor is connected to the digital I / O card and the data acquisition card respectively. The signal after the digital I / O card is connected to the DMM tester. The DMM tester and the data acquisition card are connected to the data processing device for communication respectively.

[0010] Further, the work station of each displacement sensor is provided with a corresponding digital I / O card, a DMM tester and a data acquisition card.

[0011] Further, the signal acquisition device further comprises a relay, which is arranged between the digital I / O card and the displacement sensor.

[0012] The linear displacement sensor automatic testing device has the advantages that:

[0013] The linear displacement sensor automatic testing device of the utility model realizes automatic testing, reduces the manpower input for sensor testing, reduces the cost, and improves the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model patent embodiment, the following will be briefly introduced the drawings needed to be used in the embodiment, it should be understood, the following drawings only show some embodiments of the utility model patent, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0015] Figure 1 It is the four-station linear displacement sensor automatic testing system schematic diagram of the utility model embodiment.

[0016] Wherein: 1-displacement generating device, 2-signal generating device, 3-signal acquisition device, 4-data processing device, 5-controller, 6-precision screw slide, 7-signal generator, 8-digital I / O card, 9-relay, 10-DMM tester, 11-data acquisition card, 12-upper computer, 13-linear displacement sensor, 14-excitation signal, 15-feedback signal, 16-displacement signal. DETAILED DESCRIPTION

[0017] This part is the embodiment of the utility model, for explaining and illustrating the technical scheme of the utility model.In the case of no conflict, the embodiment of the utility model and the features in the embodiment can be combined with each other.

[0018] In the description of the utility model, it needs to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or position relationship of the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the device or the case necessarily having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0019] In the description of the utility model, it needs to be understood that the terms "installation", "connection" and "connection" should be interpreted broadly, for example, it can be fixed connection, can also be detachable connection or integrated connection, can be mechanical connection, can also be point connection, can be direct connection, can also be indirect connection through an intermediate medium, and can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0020] Embodiment 1:

[0021] A multi-station linear displacement sensor automatic test system, comprising a displacement generating device 1, a signal generating device 2, a signal collecting device 3 and a data processing device 4; the signal generating device 2 is provided with at least two stations for installing displacement sensors, after the displacement sensors are installed on the signal collecting device 3, the output end of the displacement sensor is connected with the data signal collecting unit on the signal collecting device 3 through a cable, the displacement generating device 1 is connected with the input end of the displacement sensor through a cable, and the displacement generating device 1 is connected with the data signal collecting unit on the signal collecting device 3 through a cable; the data signal collecting unit is connected with the data processing device 4 in communication connection; the data processing device 4 is connected with the displacement generating device 1 in communication connection, and the displacement generating device 1 is mechanically connected with the rod body of the displacement sensor.

[0022] The displacement generating device 1 comprises a controller 5 and a precision lead screw sliding table 6, the controller 5 is connected with the precision lead screw sliding table 6, and the output end of the precision lead screw sliding table 6 is connected with the rod body of the displacement sensor of all stations.

[0023] All displacement sensor stations are arranged in parallel on the same plane.

[0024] The data signal acquisition unit of the signal acquisition device 3 comprises a digital I / O card 8, a DMM tester 10 and a data acquisition card 11. The output end of the displacement sensor is connected to the digital I / O card 8 and the data acquisition card 11 respectively. The signal after the digital I / O card 8 is connected to the DMM tester 10. The DMM tester 10 and the data acquisition card 11 are respectively in communication connection with the data processing device 4.

[0025] The work station of each displacement sensor is provided with a corresponding digital I / O card 8, a DMM tester 10 and a data acquisition card 11.

[0026] The signal acquisition device 3 further comprises a relay 9 which is arranged between the digital I / O card 8 and the displacement sensor.

[0027] Embodiment 2:

[0028] In this embodiment and the accompanying drawings, four work stations are used as an illustration, but this does not limit the number of work stations. A multi-station linear displacement sensor automatic testing system comprises a displacement generating device 1, a signal generating device 2, a signal acquisition device 3, a data processing device 4, a controller 5, a precision lead screw sliding table 6, a signal generator 7, a digital I / O card 8, a relay 9, a DMM tester 10, a data acquisition card 11, an upper computer 12, a linear displacement sensor 13, an excitation signal 14, a feedback signal 15 and a displacement signal 16. The linear displacement sensor automatic testing system has four testing stations for testing the performance parameters of the linear displacement sensor 13. The controller 5 in the displacement generating device 1 drives the precision lead screw sliding table 6 to generate linear displacement movement. The linear displacement sensor 13 to be tested is installed on the precision lead screw sliding table 6. The signal generator 7 in the signal generating device 2 provides the linear displacement sensor 13 with the excitation signal 14. The linear displacement sensor outputs the feedback signal 15 after receiving the excitation signal 14. The feedback signal 15 is collected by the digital I / O card 8 in the signal acquisition device 3 and the testing of multi-channel current, resistance and voltage is completed by the DMM tester 10. The measured signal is input into the upper computer 12 in the data processing device 4. The opening and closing of any testing station can be controlled through the relay 9. The excitation signal 14 and the displacement signal 16 are collected by the data acquisition card 11 and input into the upper computer 12. The upper computer 12 processes the collected electrical signals, calculates the performance parameters of the sensor and outputs a report.

[0029] The linear displacement sensor automatic testing system has four testing stations for testing the performance parameters of the linear displacement sensor 13.

[0030] The controller 5 in the displacement generating device 1 drives the precision lead screw sliding table 6 to generate linear displacement movement. The linear displacement sensor 13 to be tested is installed on the precision lead screw sliding table 6.

[0031] The signal generator 7 in the signal generating device 2 provides an excitation signal 14 for the linear displacement sensor 13, and the linear displacement sensor outputs a feedback signal 15 after being excited by the excitation signal 14. The feedback signal 15 is collected by the digital I / O card 8 in the signal collecting device 3, and the testing of the multi-channel current, resistance and voltage is completed by the DMM tester 10. The measured signal input data processing device 4 in the host computer (12).

[0032] The opening and closing of any one testing station can be controlled by the relay 9.

[0033] The excitation signal 14 and the displacement signal 16 are collected by the data collection card 11 and input to the host computer 12. The host computer 12 processes the collected electrical signals, calculates the performance parameters of the sensor, and outputs the report.

[0034] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application.

Claims

1. A multi-station linear displacement sensor automatic test system, characterized by, The device comprises displacement generating device (1), signal generating device (2), signal collecting device (3) and data processing device (4); the signal generating device (2) is provided with at least two work stations for installing displacement sensors; after the displacement sensors are installed on the signal collecting device (3), the output ends of the displacement sensors are connected with the data signal collecting units on the signal collecting device (3) through cables; the displacement generating device (1) is connected with the input ends of the displacement sensors through cables, and simultaneously connected with the data signal collecting units on the signal collecting device (3) through cables; the data signal collecting units are connected with the data processing device (4) in communication; the data processing device (4) is connected with the displacement generating device (1) in communication, and the displacement generating device (1) is mechanically connected with the rod bodies of the displacement sensors.

2. The multi-station linear displacement sensor automatic test system of claim 1, wherein, The displacement generating device (1) comprises a controller (5) and a precision lead screw sliding table (6); the controller (5) is connected with the precision lead screw sliding table (6); the output end of the precision lead screw sliding table (6) is connected with the rod bodies of all displacement sensors of the work stations.

3. The multi-station linear displacement sensor automatic test system of claim 2, wherein, All work stations of the displacement sensors are arranged in parallel on the same plane.

4. The multi-station linear displacement sensor automatic test system of claim 1, wherein, The data signal collecting units of the signal collecting device (3) comprise digital I / O cards (8), DMM testers (10) and data collecting cards (11); the output ends of the displacement sensors are connected with the digital I / O cards (8) and the data collecting cards (11) respectively; the signals after the digital I / O cards (8) are connected with the DMM testers (10); the DMM testers (10) and the data collecting cards (11) are connected with the data processing device (4) in communication respectively.

5. The multi-station linear displacement sensor automatic test system of claim 4, wherein, Each work station of the displacement sensors is provided with corresponding digital I / O cards (8), DMM testers (10) and data collecting cards (11).

6. The multi-station linear displacement sensor automatic test system of claim 5, wherein, The signal collecting device (3) further comprises relays (9), which are arranged between the digital I / O cards (8) and the displacement sensors.

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