CN209910816U - Sensor test bench - Google Patents
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- CN209910816U CN209910816U CN201920790991.6U CN201920790991U CN209910816U CN 209910816 U CN209910816 U CN 209910816U CN 201920790991 U CN201920790991 U CN 201920790991U CN 209910816 U CN209910816 U CN 209910816U
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- 238000007405 data analysis Methods 0.000 claims abstract description 17
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Abstract
The utility model discloses a sensor test board, which comprises a variable frequency speed regulating motor, a fault simulation device, a precise sensor group, a signal conditioning system, a data acquisition system, a data analysis processing system and a display system; the precise sensor group is electrically connected with the signal conditioning system; the signal conditioning system is electrically connected with the data acquisition system; the data acquisition system is electrically connected with the data analysis processing system; the data analysis processing system is electrically connected with the display system; the fault simulation device is erected on the first bearing seat and the second bearing seat through a bearing; one end of the fault simulation device is fixedly connected with an output shaft of the variable-frequency speed regulating motor; the other end of the fault simulation device is fixedly connected with a rotating shaft L; the fault simulation device is used for simulating various rotation faults; the method can test the measurement accuracy of the sensor in a real application scene, and provides a more intuitive judgment basis for technicians to judge equipment faults.
Description
Technical Field
The utility model relates to a sensor test field especially relates to a sensor test platform.
Background
With the development of industrial internet technology in recent years, sensors as important components have been rapidly developed. The measurement precision and the measurement accuracy of the sensor play a crucial role in waveform analysis and fault diagnosis in the later period, directly determine the accuracy of subsequent big data analysis, indirectly influence the full life cycle management of equipment, and even indirectly influence enterprise benefits.
How to quickly test and simulate the test accuracy of the vibration sensor under various working conditions becomes important.
The traditional vibration sensor test platform mainly tests the measurement data condition of the sensor by giving a plurality of vibrations with specific frequency and amplitude, but the vibrations measured by the sensor in practical application are difficult to be similar standard vibrations but are the combination of a plurality of vibrations, the traditional test platform cannot restore the reaction condition of the sensor in a real application scene, the diagnosis of a fault by a technician can only be based on the analysis of theoretical knowledge, a large amount of working experience accumulation is needed, and the maintenance work of equipment is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a sensor test stand capable of simulating various working conditions is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a sensor test board comprises a variable frequency speed regulation motor, a fault simulation device, a precision sensor group, a signal conditioning system, a data acquisition system, a data analysis processing system and a display system.
The precise sensor group is electrically connected with the signal conditioning system; the signal conditioning system is electrically connected with the data acquisition system; the data acquisition system is electrically connected with the data analysis processing system; the data analysis processing system is electrically connected with the display system;
the fault simulation device is erected on the second bearing seat and the first bearing seat through a bearing; one end of the fault simulation device is fixedly connected with an output shaft of the variable-frequency speed regulating motor; the other end of the fault simulation device is fixedly connected with a rotating shaft L;
the variable-frequency speed regulating motor is used for simulating a detected motor;
the fault simulation device is used for simulating various rotation faults;
the precise sensor group comprises a precise vibration temperature calibration sensor a, a precise vibration temperature calibration sensor b, a precise vibration temperature calibration sensor c and a precise rotating speed calibration sensor.
The precise vibration temperature calibration sensor a is fixedly arranged at the output end of the variable-frequency speed-regulating motor to test self vibration data when the variable-frequency speed-regulating motor runs, judge whether the variable-frequency speed-regulating motor runs in a good state or not and ensure that the rotary output of the whole workbench is stable.
The precise vibration temperature calibration sensor b is fixedly arranged on the second bearing seat and is used for measuring the vibration condition of the second bearing seat;
the precise vibration temperature calibration sensor c is fixedly arranged on the first bearing seat and is used for measuring the vibration condition of the first bearing seat;
the precise rotating speed calibration sensor is fixedly arranged below a rotating shaft L, and the rotating shaft L
The signal conditioning system is used for carrying out early-stage processing on the test data of each sensor, such as analog-to-digital conversion, hardware filtering and the like; the signal conditioning system also comprises at least one sensor interface to be tested; the to-be-detected sensor interface is used for connecting a to-be-detected sensor;
the data acquisition system is used for acquiring the test data of each sensor and carrying out signal amplification, software filtering and the like;
and the data analysis processing system compares the data tested by the sensor to be tested with the data tested by the precision sensor to obtain the measurement precision of the sensor to be tested.
The display system is used for displaying the measured data and the verification result;
on the basis of the technical scheme, the utility model discloses can also do following improvement.
Preferably, the precise vibration temperature calibration sensor b is fixed in a strong magnetic attraction and gluing mode, and is very convenient to mount.
Preferably, the precise vibration temperature calibration sensor c is fixed by bolts.
Preferably, the precision rotation speed calibration sensor is fixed by a fixing jig.
Preferably, the fault simulation device can simulate abnormal vibration conditions caused by misalignment and eccentricity of a shaft system and looseness of a connecting part.
Preferably, the display system comprises an oscilloscope and a display screen, wherein the oscilloscope is used for displaying the real-time situation of the sensor test signal; and the display screen is used for displaying the analyzed data and the analyzed result.
Preferably, a printer is also included; the printer may print the analysis results.
Preferably, the test station can measure multiple sets of sensors simultaneously.
Compared with the prior art, the utility model discloses following technological effect has:
the method can test the measurement accuracy of the sensor in a real application scene, and provides a more intuitive judgment basis for technicians to judge equipment faults.
Drawings
Fig. 1 is a schematic structural diagram of a sensor test board of the present invention;
fig. 2 is a schematic view of a fault simulation fixture in the fault simulation device of the sensor test board of the present invention;
in the drawings, the parts names represented by the respective reference numerals are listed as follows:
1. a variable frequency speed regulating motor;
2. a fault simulation device;
21. a fault simulation fixture;
31. a precise vibration temperature calibration sensor a;
32. a precision vibration temperature calibration sensor b;
33. a precision vibration temperature calibration sensor c;
34. a precise rotating speed calibration sensor;
31', a first vibration sensor to be measured;
31' of a second vibration sensor to be measured;
32' and a third vibration sensor to be tested;
32' and a fourth vibration sensor to be measured;
33' and a fifth vibration sensor to be measured;
33', a sixth vibration sensor to be measured;
34', a rotation speed sensor to be detected;
4. a signal conditioning system;
5. a data acquisition system;
6. a data analysis processing system;
71. a display screen;
72. an oscilloscope;
8. a printer;
10. a first bearing housing;
11. a second bearing housing;
12. a rotation axis L;
A. a first clamping block;
B. and a second clamping block.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Please refer to fig. 1, which is a schematic structural diagram of a sensor testing platform according to the present invention. The sensor test stand includes: the device comprises a variable frequency speed regulating motor 1, a fault simulation device 2, a precision sensor group 3, a signal conditioning system 4, a data acquisition system 5, a data analysis processing system 6 and a display system 7.
The precise sensor group is electrically connected with the signal conditioning system 4; the signal conditioning system 4 is electrically connected with the data acquisition system 5; the data acquisition system 5 is electrically connected with the data analysis processing system 6; the data analysis processing system 6 is electrically connected with the display system;
the fault simulation device 2 is erected on the second bearing seat 11 and the first bearing seat 10 through bearings; one end of the fault simulation device 2 is fixedly connected with an output shaft of the variable-frequency speed regulating motor 1; the other end of the fault simulation device 2 is fixedly connected with a rotating shaft L12;
the variable-frequency speed regulating motor 1 is used for simulating a detected motor;
the fault simulation device 2 is used for simulating various rotation faults;
the precise sensor group comprises a precise vibration temperature calibration sensor a31, a precise vibration temperature calibration sensor b32, a precise vibration temperature calibration sensor c33 and a precise rotating speed calibration sensor 34.
The precision vibration temperature calibration sensor a31 is fixedly arranged at the output end of the variable-frequency speed-regulating motor 1 to test the operation data of the variable-frequency speed-regulating motor 1 and judge the real operation state of the variable-frequency speed-regulating motor 1 to ensure that the variable-frequency speed-regulating motor 1 operates in a safe and stable state;
the precise vibration temperature calibration sensor b32 is fixedly mounted on the second bearing seat 11, and is used for measuring the vibration condition of the second bearing seat 11;
the precise vibration temperature calibration sensor c33 is fixedly mounted on the first bearing seat 10, and measures the vibration condition of the first bearing seat 10;
the precise rotating speed calibration sensor 34 is fixedly installed below the rotating shaft L12, a reflective strip is arranged on the rotating shaft L12, and the rotating speed is measured by detecting the reflective strip.
The signal conditioning system 4 is used for carrying out preprocessing on the test data of each sensor; the signal conditioning system 4 further comprises at least one sensor interface to be tested; the to-be-detected sensor interface is used for connecting a first to-be-detected vibration sensor 31 ', a second to-be-detected vibration sensor 31 ', a third to-be-detected vibration sensor 32 ', a fourth to-be-detected vibration sensor 32 ', a fifth to-be-detected vibration sensor 33 ', a sixth to-be-detected vibration sensor 33 ' and a to-be-detected rotating speed sensor 34 ';
the data acquisition system 5 is used for acquiring the test data of each sensor and carrying out amplification, filtering and analog-to-digital conversion;
and the data analysis and processing system 6 compares the data tested by the sensor to be tested with the data tested by the precision sensor to obtain the measurement precision and accuracy of the sensor to be tested.
The display system comprises an oscilloscope 72 and a display screen 71, wherein the oscilloscope 72 is used for displaying the real-time situation of the sensor test signal; the display screen 71 is used for displaying the analyzed data and the analysis result.
Preferably, the precise vibration temperature calibration sensor b32 is fixed by strong magnetic attraction and gluing.
Preferably, the precision vibration temperature calibration sensor c33 is fixed by bolts.
Preferably, the fine rotation speed calibration sensor 34 is fixed by a fixing jig.
Preferably, the fault simulation device 2 can simulate abnormal vibration caused by shafting eccentricity by replacing different fault simulation clamps 21. Referring to fig. 2, the fault simulation fixture 21 includes a first clamping block a and a second clamping block B, which have different weights and are fixed on the rotating shaft to simulate the eccentric condition of the shaft system; in addition, the loosening condition of the connecting part can be simulated by adjusting the tightness degree of the bearing seat screw; the condition that a shaft system is not aligned can be simulated by adjusting the connection position of the output shaft of the motor and the rotating shaft of the fault simulation device.
Preferably, a printer 8 is also included; the printer 8 may print the analysis result.
Preferably, the test station can measure multiple sets of sensors simultaneously.
The utility model discloses a sensor testboard can test the measurement accuracy of sensor under real applied scene, judges equipment trouble for the technical staff and provides more audio-visual judgement foundation.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A sensor test board is characterized by comprising a variable frequency speed regulation motor, a fault simulation device, a precise sensor group, a signal conditioning system, a data acquisition system, a data analysis processing system and a display system;
the precise sensor group is electrically connected with the signal conditioning system; the signal conditioning system is electrically connected with the data acquisition system; the data acquisition system is electrically connected with the data analysis processing system; the data analysis processing system is electrically connected with the display system;
the variable-frequency speed regulating motor is used for simulating a detected motor;
the fault simulation device is erected on the first bearing seat and the second bearing seat through a bearing; one end of the fault simulation device is fixedly connected with an output shaft of the variable-frequency speed regulating motor; the other end of the fault simulation device is fixedly connected with a rotating shaft L;
the fault simulation device is used for simulating various rotation faults;
the precise sensor group comprises a precise vibration temperature calibration sensor a, a precise vibration temperature calibration sensor b, a precise vibration temperature calibration sensor c and a precise rotating speed calibration sensor;
the precise vibration temperature calibration sensor a is fixedly arranged at the output end of the variable-frequency speed regulating motor;
the precise vibration temperature calibration sensor b is fixedly arranged on the second bearing seat;
the precise vibration temperature calibration sensor c is fixedly arranged on the first bearing seat;
the precise rotating speed calibration sensor is fixedly arranged below the rotating shaft L;
the signal conditioning system is used for carrying out early-stage processing on the test data of each sensor; the signal conditioning system also comprises at least one sensor interface to be tested; the to-be-detected sensor interface is used for connecting a to-be-detected sensor;
the data acquisition system is used for acquiring the original data measured by each sensor and amplifying, filtering and carrying out analog-to-digital conversion on the original data;
the data analysis processing system compares the data tested by the sensor to be tested with the data tested by the precise sensor group to obtain the measurement precision and accuracy of the sensor to be tested;
the display system is used for displaying the data report and the verification result.
2. The sensor testing bench according to claim 1, wherein said precise vibration temperature calibration sensor b, said precise vibration temperature calibration sensor c are fixed by strong suction and gluing or bolting; the precise rotating speed calibration sensor is fixed by a clamp.
3. The sensor test bench of claim 1, wherein the fault simulation device can simulate abnormal vibration caused by misalignment and eccentricity of a shaft system and looseness of a connecting part.
4. The sensor testing bench of claim 1, wherein said display system comprises an oscilloscope and a display screen, said oscilloscope being configured to display real-time conditions of sensor testing signals; and the display screen is used for displaying the analyzed data and the analyzed result.
5. The sensor test stand of claim 1, further comprising a printer; the printer may print the analysis results.
6. The sensor test bench according to any of the claims 1-5, characterized in that said test bench is capable of measuring a plurality of sensors simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790991.6U CN209910816U (en) | 2019-05-29 | 2019-05-29 | Sensor test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790991.6U CN209910816U (en) | 2019-05-29 | 2019-05-29 | Sensor test bench |
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| Publication Number | Publication Date |
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| CN209910816U true CN209910816U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405584A (en) * | 2021-05-17 | 2021-09-17 | 上海德意达电子电器设备有限公司 | Testing method and device for performance test of speed vibration combined sensor |
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2019
- 2019-05-29 CN CN201920790991.6U patent/CN209910816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405584A (en) * | 2021-05-17 | 2021-09-17 | 上海德意达电子电器设备有限公司 | Testing method and device for performance test of speed vibration combined sensor |
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