CN210803645U - Calibration device of non-contact ultrasonic partial discharge detector - Google Patents
Calibration device of non-contact ultrasonic partial discharge detector Download PDFInfo
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- CN210803645U CN210803645U CN201921348789.4U CN201921348789U CN210803645U CN 210803645 U CN210803645 U CN 210803645U CN 201921348789 U CN201921348789 U CN 201921348789U CN 210803645 U CN210803645 U CN 210803645U
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Abstract
The utility model belongs to the technical field of the high pressure testing technique and specifically relates to a calibration equipment of non-contact ultrasonic wave partial discharge detector is related to. The utility model provides a calibration equipment of non-contact ultrasonic wave partial discharge detector, including the platform main part, signal generator, ultrasonic transducer with be used for placing the objective table by the calibration sensor, the one end of platform main part is provided with driving motor, sliding connection has the slider in the platform main part, driving motor's output shaft has the lead screw, the lead screw sets up along the length direction of platform main part, lead screw and slider threaded connection, the both sides along the width direction of platform main part of slider are provided with the support, be provided with the reference column between two supports, sliding connection has the slip table on the reference column, be fixed with ultrasonic transducer through the mount pad on the slip table, be provided with first laser instrument and second laser instrument on the mount pad, be the cross after the coincidence of the laser that first laser instrument and second laser instrument sent. The utility model discloses the simple operation, the accurate nature of check-up is high.
Description
Technical Field
The utility model belongs to the technical field of the high pressure testing technique and specifically relates to a calibration equipment of non-contact ultrasonic wave partial discharge detector is related to.
Background
Partial discharge measurement is an important means for judging the insulation strength of high-voltage power equipment.
The non-contact ultrasonic measurement method is an effective partial discharge measurement method and has the following principle: the high-voltage power equipment generates a partial discharge phenomenon, so that generated ultrasonic signals are collected through the non-contact ultrasonic sensor and are analyzed and processed by the partial discharge detector to display amplitude data and characteristic waveforms of the ultrasonic signals.
At present, in the market, the partial discharge detectors have a plurality of products, instruments produced by different manufacturers have different performances, and amplitude data and characteristic waveforms are inconsistent, so that a reliable and stable calibration device is needed for calibration.
For example, Chinese patent publication numbers are: CN206038887U, an examination calibration equipment of non-contact ultrasonic method partial discharge detector announced in 2017, 3, month and 22, including signal excitation source, ultrasonic transducer module, calibration platform, reference sensor, oscilloscope, 50 omega coaxial cable, the detected instrument includes the detected sensor and the local discharge detector, although the utility model discloses a detectable project includes sensitivity, detection frequency band, linearity, stability etc. is applicable to performance examination such as routine maintenance, test, correction of the non-contact ultrasonic method partial discharge detector of electric power detection trade, but the device operation is inconvenient, leads to the check-up precision low.
Disclosure of Invention
The utility model discloses it is inconvenient mainly to the calibration equipment operation on the existing market, leads to the problem that the accurate nature of check-up is low, provides a simple operation, the high non-contact ultrasonic wave partial discharge detector's of the accurate nature of check-up calibration equipment.
The purpose of the utility model is mainly realized by the following scheme: a checking device of a non-contact ultrasonic partial discharge detector comprises a platform main body, a signal generator, an ultrasonic transducer and an object stage for placing a checked sensor, one end of the platform main body is provided with a driving motor, the platform main body is connected with a sliding block in a sliding way, the output shaft of the driving motor is connected with a screw rod which is arranged along the length direction of the platform main body, the screw rod is connected with the sliding block through threads, two sides of the sliding block along the width direction of the platform main body are provided with supporting seats, a positioning column is arranged between the two supporting seats, the positioning column is connected with a sliding table in a sliding way, an ultrasonic transducer is fixed on the sliding table through a mounting seat, the mounting base on be provided with first laser instrument and second laser instrument, the laser coincidence back that first laser instrument and second laser instrument sent be the cross. The signal generator can generate a standard signal, the ultrasonic transducer can convert the standard electrical signal generated by the signal generator into a standard ultrasonic signal, the standard signal and the ultrasonic transducer are positioned at the same horizontal height, a driving motor is arranged at one end of the platform main body, a sliding block is connected on the platform main body in a sliding manner, an output shaft of the driving motor is connected with a lead screw, the lead screw is arranged along the length direction of the platform main body, the lead screw is in threaded connection with the sliding block, when the driving motor is started, the driving motor drives the lead screw to rotate, the lead screw can drive the sliding block to move back and forth along the length direction of the platform main body, two sides of the sliding block along the width direction of the platform main body are provided with supporting seats, a positioning column is arranged between the two supporting seats, the positioning column is connected with a sliding table in a sliding manner, be provided with first laser instrument and second laser instrument on the mount pad, be the cross after the laser coincidence that first laser instrument and second laser instrument sent, first laser instrument and second laser instrument constitute the laser cross counterpoint line, conveniently by the calibration sensor in ultrasonic transducer center alignment, improve accurate nature, when the calibration, signal generator is as the signal source, ultrasonic transducer is as signal emission device, ultrasonic transducer can transmit ultrasonic signal to by calibration sensor department, by the calibration sensor be connected with the partial discharge detector, the partial discharge detector shows amplitude data and characteristic waveform after the analysis process, thereby the calibration is by the reliability of calibration sensor, it is very convenient to operate.
Preferably, the platform main body is provided with a positioning plate, the sliding block is provided with a sliding groove in sliding connection with the positioning plate, and the positioning plate is located in the sliding groove. Be provided with the locating plate in the platform main part, be provided with on the slider with locating plate sliding connection's spout, the locating plate is located the spout, the slider can slide along the locating plate under the effect of driving motor and lead screw, difficult skew position.
Preferably, the platform main body is provided with a drag chain for arranging and installing signal leads. Be provided with the tow chain that is used for arranging installation signal lead wire on the platform main part, improved the aesthetic property and the security of whole device.
Preferably, the output shaft of the driving motor is connected with the screw rod through a coupling. The output shaft of the driving motor is connected with the lead screw through the coupler, and the connection is stable.
Preferably, the number of the positioning columns is two, and the two positioning columns are arranged along the length direction of the platform main body. The quantity of reference column is two, and two reference columns set up along the length direction of platform main part for the stability of slip table when removing is higher.
Preferably, the platform main body is made of aluminum. The platform main part adopts the aluminum product to make, has reduced manufacturing cost.
Preferably, the platform main body is provided with a graduated scale. The scale is arranged on the platform main body, so that the distance between the ultrasonic transducer and the calibrated sensor can be conveniently measured and adjusted.
Therefore, the utility model discloses a non-contact ultrasonic partial discharge detector's calibration equipment possesses following advantage: the utility model discloses simple structure, the simple operation, stability during the check-up is high, and is high to the accurate nature of performance check-up of non-contact ultrasonic wave partial discharge detector.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a side view of the present invention.
Illustration of the drawings: 1-a platform main body, 2-a sliding block, 3-a positioning column, 4-a support, 5-a sliding table, 6-a mounting seat, 7-an objective table, 8-a drag chain, 9-an ultrasonic transducer, 10-a sliding chute, 11-a positioning plate, 12-a driving motor, 13-a first laser, 14-a second laser and 15-a screw rod.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, 2, 3, 4, a checking device of a non-contact ultrasonic partial discharge detector comprises a platform main body 1, a signal generator, an ultrasonic transducer 9 and a stage 7 for placing a sensor to be checked, wherein the platform main body 1 is made of aluminum, the production cost is reduced, the signal generator can generate a standard signal, the ultrasonic transducer 9 can convert the standard electrical signal generated by the signal generator into a standard ultrasonic signal, the sensor to be checked and the ultrasonic transducer 9 are positioned on the same horizontal height, one end of the platform main body 1 is provided with a driving motor 12, the platform main body 1 is connected with a sliding block 2 in a sliding way, an output shaft of the driving motor 12 is connected with a lead screw 15, the lead screw 15 is arranged along the length direction of the platform main body 1, the lead screw 15 is in threaded connection with the sliding block 2, the output shaft of the driving motor 12 is, the connection is stable, when the driving motor 12 is started, the driving motor 12 drives the screw rod 15 to rotate, the screw rod 15 can drive the slider 2 to move back and forth along the length direction of the platform main body 1, the two sides of the slider 2 along the width direction of the platform main body 1 are provided with the supports 4, the positioning column 3 is arranged between the two supports 4, the positioning column 3 is connected with the sliding table 5 in a sliding way, the sliding table 5 is fixed with the ultrasonic transducer 9 through the mounting seat 6, when the sliding table 5 is moved, the ultrasonic transducer 9 can be driven to move left and right along the width direction of the platform main body 1, the mounting seat 6 is provided with the first laser 13 and the second laser 14, the laser emitted by the first laser 13 and the second laser 14 is in a cross shape after being superposed, the first laser 13 emits transverse laser, the second laser 14 emits vertical laser, the first laser 13 and the second laser 14 form a laser cross alignment line, the convenience is aimed at in ultrasonic transducer 9 center by the calibration sensor, improves the accuracy, and when the calibration, signal generator is as the signal source, and ultrasonic transducer 9 is as signal emission device, and ultrasonic transducer 9 can transmit ultrasonic signal to by calibration sensor department, is connected by calibration sensor and partial discharge detector, and the partial discharge detector shows amplitude data and characteristic waveform after analysis processes to calibration detecting instrument's reliability, it is very convenient to operate.
Be provided with locating plate 11 on the platform main part 1, be provided with on the slider 2 with locating plate 11 sliding connection's spout 10, locating plate 11 is located spout 10, slider 2 can slide along locating plate 11 under driving motor 12 and lead screw 15's effect, difficult off-set position.
The platform main body 1 is provided with the drag chain 8 for arranging and installing the signal lead, so that the attractiveness and the safety of the whole device are improved.
The quantity of reference column 3 is two, and two reference columns 3 set up along the length direction of platform main part 1 for the stability of slip table 5 when removing is higher.
The platform main body 1 is provided with a graduated scale, so that the distance between the ultrasonic transducer 9 and the calibrated sensor can be conveniently measured and adjusted.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (7)
1. A checking device of a non-contact ultrasonic partial discharge detector comprises a platform main body, a signal generator, an ultrasonic transducer and an object stage for placing a checked sensor, it is characterized in that one end of the platform main body is provided with a driving motor, the platform main body is connected with a sliding block in a sliding way, the output shaft of the driving motor is connected with a screw rod which is arranged along the length direction of the platform main body, the screw rod is connected with the sliding block through threads, two sides of the sliding block along the width direction of the platform main body are provided with supporting seats, a positioning column is arranged between the two supporting seats, the positioning column is connected with a sliding table in a sliding way, an ultrasonic transducer is fixed on the sliding table through a mounting seat, the mounting base on be provided with first laser instrument and second laser instrument, the laser coincidence back that first laser instrument and second laser instrument sent be the cross.
2. The calibrating device for the non-contact ultrasonic partial discharge detector according to claim 1, wherein the platform body is provided with a positioning plate, the sliding block is provided with a sliding groove in sliding connection with the positioning plate, and the positioning plate is located in the sliding groove.
3. The verification device of claim 1, wherein the platform body is provided with a drag chain for arranging and installing signal leads.
4. The verification device of the non-contact ultrasonic partial discharge detector according to claim 1, 2 or 3, wherein the output shaft of the driving motor is connected with the screw rod through a coupling.
5. The verification device of the non-contact ultrasonic partial discharge detector according to claim 1, 2 or 3, wherein the number of the positioning columns is two, and the two positioning columns are arranged along the length direction of the platform main body.
6. The verification device of the non-contact ultrasonic partial discharge detector according to claim 1, 2 or 3, wherein the platform body is made of aluminum.
7. The verification device of the non-contact ultrasonic partial discharge detector according to claim 1, 2 or 3, wherein the platform body is provided with a scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348789.4U CN210803645U (en) | 2019-08-19 | 2019-08-19 | Calibration device of non-contact ultrasonic partial discharge detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348789.4U CN210803645U (en) | 2019-08-19 | 2019-08-19 | Calibration device of non-contact ultrasonic partial discharge detector |
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| Publication Number | Publication Date |
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| CN210803645U true CN210803645U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921348789.4U Active CN210803645U (en) | 2019-08-19 | 2019-08-19 | Calibration device of non-contact ultrasonic partial discharge detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114123A (en) * | 2021-11-29 | 2022-03-01 | 广东电网有限责任公司广州供电局 | Calibration device and method for partial discharge detection sensor |
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2019
- 2019-08-19 CN CN201921348789.4U patent/CN210803645U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114123A (en) * | 2021-11-29 | 2022-03-01 | 广东电网有限责任公司广州供电局 | Calibration device and method for partial discharge detection sensor |
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