CN219798530U - Vibration sensor calibration device - Google Patents
Vibration sensor calibration device Download PDFInfo
- Publication number
- CN219798530U CN219798530U CN202320997706.4U CN202320997706U CN219798530U CN 219798530 U CN219798530 U CN 219798530U CN 202320997706 U CN202320997706 U CN 202320997706U CN 219798530 U CN219798530 U CN 219798530U
- Authority
- CN
- China
- Prior art keywords
- vibration
- sensor
- calibration
- annular mounting
- vibration sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005284 excitation Effects 0.000 claims abstract description 22
- 238000012795 verification Methods 0.000 claims description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The utility model discloses a vibration sensor calibration device, which belongs to the technical field of vibration sensor calibration, and comprises a calibration device host, a calibration comparison sensor and a standard background plate, wherein a vibration excitation source of the calibration device host is arranged at the center of the standard background plate, the calibration comparison sensor and the calibrated vibration sensor are both arranged on the standard background plate and have the same distance with the vibration excitation source, and the calibration comparison sensor and the calibrated vibration sensor are both in signal connection with a collection end of the calibration device host; the standard background plate is provided with an annular mounting groove, and the check comparison sensor and the vibration sensor to be checked are arranged in the annular mounting groove and fixed by a fixing piece. The vibration sensor calibration device can flexibly adjust the number and the positions of the vibration sensors to be tested, is convenient to fix, utilizes the standard adjustable vibration source to send out signals, and realizes accurate calibration of the vibration sensor by synchronously measuring and comparing the calibration comparison sensor with the vibration sensor to be calibrated.
Description
Technical Field
The utility model belongs to the technical field of vibration sensor calibration, and particularly relates to a vibration sensor calibration device.
Background
At present, large-scale power equipment such as transformers (high resistance) in a power system are widely used as vibration sensors for monitoring abnormal vibration of the equipment caused by faults such as loosening of internal bolts and partial discharge, and play an important role in early warning of defects of the power equipment in operation. Vibration type on-line monitoring device in operation receives electromagnetic environment influences such as electrified equipment high electric field, high magnetic field in the long-term operation, and on-line monitoring internal electronic component performance probably takes place ageing or degradation, leads to measurement accuracy to deteriorate, influences the accurate judgement of power equipment running state in turn, can not in time discover after appearing great hidden danger, need regularly carry out the check-up to on-line monitoring device. However, at present, a more perfect verification method for the vibration sensor does not exist. Therefore, a laboratory verification method for the vibration sensor needs to be designed, the uniformity of the test environment is ensured, a standard adjustable vibration source is utilized to send out signals, and the vibration sensor is synchronously measured and compared with the vibration sensor to be verified through the verification comparison sensor, so that the laboratory verification for the vibration sensor is realized, and the laboratory verification method has great popularization value.
Patent document publication No. CN 208488164U discloses a multi-type vibration sensor comparing device comprising a fixed disk, a vibration checking device, a data acquisition device and a computer; the vibration checking device is connected with the plurality of vibration sensors to be tested and is used for outputting control signals according to the control instructions to control the vibration of the vibration sensors to be tested; the fixed disc comprises a plurality of sensor mounting grooves, and the sensor mounting grooves are used for mounting a sensor to be detected; the data acquisition device is respectively connected with the plurality of vibration sensors to be detected and is used for acquiring vibration response signals generated by the vibration sensors when the plurality of vibration sensors vibrate; the computer is respectively connected with the data acquisition device and the vibration verification device and is used for acquiring the vibration response signals and outputting control instructions to the vibration verification device. In this patent document, the vibration sensor is fixed by being screwed into the sensor mounting groove, however, most vibration sensors are not provided with a screw thread, and therefore, the use range of the comparison device is small, and the flexibility is poor.
Disclosure of Invention
In view of the defects in the prior art, the vibration sensor verification device and the vibration sensor verification method provided by the utility model not only can flexibly adjust the number and the positions of the vibration sensors to be tested and conveniently fix the vibration sensors, but also can ensure the uniformity of a test environment, send out signals by using a standard adjustable vibration source, and realize accurate verification of the vibration sensor by synchronously measuring and comparing the verification comparison sensor with the vibration sensor to be verified.
In order to solve the technical problems, the utility model adopts the following technical scheme: the vibration sensor calibration device comprises a calibration device host, a calibration comparison sensor and a standard background plate, wherein a vibration excitation source of the calibration device host is arranged at the center of the standard background plate, the calibration comparison sensor and the vibration sensor to be calibrated are arranged on the standard background plate and have the same distance with the vibration excitation source, and the calibration comparison sensor and the vibration sensor to be calibrated are in signal connection with a collection end of the calibration device host;
the vibration excitation device is characterized in that an annular mounting groove is formed in the standard background plate, the circle center of the annular mounting groove is provided with a vibration excitation source, the outer side of the annular mounting groove is provided with a plurality of fixing pieces, and the verification comparison sensor and the vibration sensor to be verified are arranged in the annular mounting groove and are respectively fixed by the fixing pieces.
Further, the standard background plate is an aluminum plate with uniform thickness.
Further, a plurality of screw holes are uniformly formed in the periphery of the annular mounting groove, the fixing piece is a bolt, and the bolt is in threaded connection with the screw holes.
Further, a plurality of annular installation sleeves are movably arranged in the annular installation groove, screw holes are also formed in the side face of the annular installation sleeve, the checking comparison sensor and the checked vibration sensor are placed in the annular installation sleeve, and the bolts sequentially penetrate through the annular installation groove and the annular installation sleeve to be fixed.
Compared with the prior art, the utility model has the following beneficial effects:
according to the vibration sensor calibration device, the annular mounting groove is formed in the standard background plate, the vibration excitation source of the calibration device host is located at the center of the annular mounting groove, and the calibration comparison sensor and the vibration sensor to be calibrated are arranged in the annular mounting groove and are respectively fixed by the fixing piece.
The utility model has the structural design that a plurality of annular mounting sleeves are movably arranged in the annular mounting groove, screw holes are also arranged on the side surfaces of the annular mounting sleeves, the vibration sensor to be checked and the vibration sensor to be checked are placed in the annular mounting sleeves, and bolts sequentially penetrate through the annular mounting groove and the annular mounting sleeves to fix the vibration sensor.
Drawings
FIG. 1 is a schematic diagram of the operation of a first embodiment of the present utility model;
FIG. 2 is a top view of a first embodiment of the utility model;
FIG. 3 is a front view of a second embodiment of the present utility model;
FIG. 4 is a top view of a second embodiment of the present utility model;
in the figure, 1-calibration device host computer, 2-calibration contrast sensor, 3-standard background board, 4-vibration excitation source, 5-vibration sensor to be calibrated, 6-annular mounting groove, 7-bolt, 8-annular installation cover, 9-bottom plate, 10-bracing piece, 11-annular frame, 12-buckle.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
Example 1
As shown in fig. 1-2, a vibration sensor calibration device comprises a calibration device host 1, a calibration comparison sensor 2 and a standard background plate 3, wherein a vibration excitation source 4 of the calibration device host 1 is arranged at the center of the standard background plate 3, the calibration comparison sensor 2 and a calibrated vibration sensor 5 are both arranged on the standard background plate 3 and have the same distance with the vibration excitation source 4, and the calibration comparison sensor 2 and the calibrated vibration sensor 5 are both in signal connection with a collection end of the calibration device host 1;
the standard background plate 3 is provided with an annular mounting groove 6, the circle center of the annular mounting groove 6 is provided with a vibration excitation source 4, the outer side of the annular mounting groove 6 is provided with a plurality of fixing pieces, and the checking comparison sensor 2 and the checked vibration sensor 5 are arranged in the annular mounting groove 6 and are respectively fixed by the fixing pieces.
The standard background plate 3 is an aluminum plate with uniform thickness.
A plurality of screw holes are uniformly formed in the periphery of the annular mounting groove 6, the fixing piece is a bolt 7, and the bolt 7 is in threaded connection with the screw holes; the annular mounting groove 6 is internally and movably provided with a plurality of annular mounting sleeves 8, the side surface of each annular mounting sleeve 8 is also provided with a screw hole, the verification comparison sensor 2 and the vibration sensor 5 to be verified are placed in the annular mounting sleeves 8, and the bolts 7 sequentially penetrate through the annular mounting groove 6 and the annular mounting sleeves 8 to be fixed.
The vibration sensor verification device provided by the embodiment of the utility model comprises the following verification methods:
s1: the vibration excitation source of the calibration device host is arranged at the center of the standard background plate, so that the uniformity of vibration characteristics of the vibration excitation signal sent by the calibration device host in the whole transmission range of the standard background plate is ensured;
s2: the method comprises the steps that a checking comparison sensor and a checked vibration sensor are installed in different annular installation sleeves in the annular installation groove, and the sensors are fixed by sequentially penetrating through the annular installation groove and the annular installation sleeve through bolts;
s3: and the vibration excitation signals of the vibration excitation source are regulated, the measured values of the verification comparison sensor and the vibration sensor to be verified are recorded, and the vibration sensor is verified by synchronous measurement comparison of the verification comparison sensor and the vibration sensor to be verified.
As shown in fig. 1, the basic principle of the verification method of the utility model is that the uniformity of the test environment is realized through a standard background plate, then a signal is sent out by using a standard adjustable vibration source, and the laboratory verification of the vibration sensor is realized through synchronous measurement and comparison of the verification comparison sensor and the vibration sensor to be verified.
According to the vibration sensor verification device provided by the embodiment of the utility model, the annular mounting groove is formed in the standard background plate, the vibration excitation source is arranged at the center of the circle, when the verification comparison sensor and the vibration sensor to be verified are mounted on the annular mounting groove, the distances from the two vibration excitation sources to the vibration excitation source are ensured to be equal, and a plurality of vibration sensors to be verified can be mounted, so that the vibration sensors can be verified simultaneously, and the verification efficiency is improved.
Example two
As shown in fig. 3 to 4, the vibration sensor calibration device according to the embodiment of the present utility model is further improved on the basis of the first embodiment, and is different from the embodiment 1 in that:
still include bottom plate 9 and wire support frame, standard background board 3 is fixed to be set up on the bottom plate 9, the wire support frame sets up on the bottom plate 9, and be located standard background board 3 outside, the wire support frame includes bracing piece 10 and annular frame 11, fixed setting on the bracing piece 10 annular frame 11, annular frame 11 is located standard background board 3 directly over, slide on the annular frame 11 and set up a plurality of buckles 12, the wire of check-up pair sensor 2 and by check-up vibration sensor 5 is blocked respectively and is fixed in buckle 12 to can slide around annular frame 11.
According to the vibration sensor calibration device disclosed by the embodiment of the utility model, the wire support frame is arranged above the standard background plate, so that wires of the calibration comparison sensor and the calibrated vibration sensor are upwards arranged, more wires are prevented from falling on the standard background plate and influencing the calibration result, and the wires slide along the annular frame through the buckle, so that the wire arrangement is neat, the flexibility is high, and the device can adapt to the position arrangement of a plurality of calibrated vibration sensors.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (4)
1. A vibration sensor verification device, characterized in that: the device comprises a calibration device host, a calibration comparison sensor and a standard background plate, wherein a vibration excitation source of the calibration device host is arranged at the center of the standard background plate, the calibration comparison sensor and the vibration sensor to be calibrated are both arranged on the standard background plate, the distances between the calibration comparison sensor and the vibration excitation source are equal, and the calibration comparison sensor and the vibration sensor to be calibrated are both in signal connection with a collecting end of the calibration device host;
the vibration excitation device is characterized in that an annular mounting groove is formed in the standard background plate, the circle center of the annular mounting groove is provided with a vibration excitation source, the outer side of the annular mounting groove is provided with a plurality of fixing pieces, and the verification comparison sensor and the vibration sensor to be verified are arranged in the annular mounting groove and are respectively fixed by the fixing pieces.
2. The vibration sensor verification device of claim 1, wherein: the standard background plate is an aluminum plate with uniform thickness.
3. The vibration sensor verification device of claim 1, wherein: the annular mounting groove is characterized in that a plurality of screw holes are uniformly formed in the periphery of the annular mounting groove, the fixing piece is a bolt, and the bolt is in threaded connection with the screw holes.
4. A vibration sensor verification apparatus as claimed in claim 3, wherein: the annular mounting groove is internally and movably provided with a plurality of annular mounting sleeves, the side surfaces of the annular mounting sleeves are also provided with screw holes, the checking comparison sensor and the checked vibration sensor are placed in the annular mounting sleeves, and the bolts sequentially penetrate through the annular mounting groove and the annular mounting sleeves to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997706.4U CN219798530U (en) | 2023-04-27 | 2023-04-27 | Vibration sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997706.4U CN219798530U (en) | 2023-04-27 | 2023-04-27 | Vibration sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219798530U true CN219798530U (en) | 2023-10-03 |
Family
ID=88188334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320997706.4U Active CN219798530U (en) | 2023-04-27 | 2023-04-27 | Vibration sensor calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219798530U (en) |
-
2023
- 2023-04-27 CN CN202320997706.4U patent/CN219798530U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110487430B (en) | Server temperature measuring device | |
| CN109581268B (en) | Fault diagnosis method and device for optical fiber current transformer | |
| CN110320386A (en) | Multichannel list dual chip differential type wheel speed sensors test fixture and System and method for | |
| CN104237759A (en) | Discharge intensity detecting system and method for power transmission and transformation device | |
| CN219798530U (en) | Vibration sensor calibration device | |
| CN206573247U (en) | Blast impulse mechanical effect target and electrical measuring method superpressure comprehensive test device | |
| CN117092503A (en) | Method for testing motor vibration | |
| CN116519126A (en) | Vibration sensor calibration device and method | |
| CN102890165B (en) | Method and device for detecting fan acceleration sensor | |
| CN209910816U (en) | Sensor test bench | |
| CN114813003A (en) | Multi-parameter measurement method for vibration fatigue damage of metal component of airplane | |
| CN211373444U (en) | Crankshaft balance block excircle radius qualification degree inspection device | |
| CN208044005U (en) | A kind of local discharge signal detecting system | |
| CN108709624B (en) | High-precision natural frequency measuring method and device | |
| CN109655689B (en) | Low-disturbance supporting structure for TEM cell | |
| CN217155578U (en) | Synchronous test calibration device suitable for many magnetoelectric vibration sensors | |
| CN106053590B (en) | Magnetic suspension thrombus elasticity testing device | |
| CN105866727A (en) | Real-time checking system for electric energy meter calibrating device | |
| CN205538819U (en) | Thin installing support of taking internal defect check out test set | |
| CN206638741U (en) | A kind of tangential piezoelectric constant d15 measurement apparatus | |
| CN219715674U (en) | Test board for testing capability of electrical testing machine equipment | |
| CN111308402A (en) | Method and device for measuring lightning magnetic field | |
| CN220602488U (en) | Wire measuring device | |
| CN212808073U (en) | Reconnaissance and equip reliability test and detect clamping device | |
| CN218272561U (en) | Intelligent sensing online monitoring device for state of transformer reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Lei Inventor after: Zhan Zhenyu Inventor after: Xin Weifeng Inventor after: Yang Zhifei Inventor after: Lu Yiwei Inventor after: Ma Yunrui Inventor after: Zhang Yupeng Inventor after: Wang Wei Inventor after: Hu Runge Inventor after: Wang Xiaohui Inventor after: Liu Furong Inventor after: Wang Jingbao Inventor after: Ding Guojun Inventor after: Zhu Hua Inventor after: Dong Manling Inventor before: Guo Lei Inventor before: Zhan Zhenyu Inventor before: Xin Weifeng Inventor before: Yang Zhifei Inventor before: Lu Yiwei Inventor before: Ma Yunrui Inventor before: Zhang Yupeng Inventor before: Wang Wei Inventor before: Hu Runge Inventor before: Wang Xiaohui Inventor before: Liu Furong Inventor before: Wang Jingbao Inventor before: Ding Guojun Inventor before: Zhu Hua Inventor before: Dong Manling |
|
| CB03 | Change of inventor or designer information |