CN2135773Y - Optical fibre sensor for testing wind-vibration of high-voltage transmission line - Google Patents
Optical fibre sensor for testing wind-vibration of high-voltage transmission line Download PDFInfo
- Publication number
- CN2135773Y CN2135773Y CN 92221456 CN92221456U CN2135773Y CN 2135773 Y CN2135773 Y CN 2135773Y CN 92221456 CN92221456 CN 92221456 CN 92221456 U CN92221456 U CN 92221456U CN 2135773 Y CN2135773 Y CN 2135773Y
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- Prior art keywords
- transmission line
- wind
- housing
- vibration
- voltage transmission
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- Expired - Lifetime
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to an optical fibre sensor for testing wind-vibration of overhead transmission lines, which is composed of a plane mirror, a self-focusing lens, a metal contact and link units. The optical fibre sensor converts the signals of the mechanical vibration of a conducting wire caused by breeze into optical signals, and the optical signals are transported from upper air to ground by optical fibre. The value of the wind-vibration of the transmission line can be obtained through computer processing. The utility model has the advantages of light weight, rapid and accurate measurement, etc.
Description
The utility model belongs to the sensor in the aeolian vibration surveying instrument of high voltage overhead line.
Be laid in aerial ultra-high-tension power transmission line, to such an extent as to have a power failure for disconnected strand owing to aeolian vibration causes electric wire.Therefore the wind that needs often the to detect overhead transmission line situation (Ministry of Water Resources and Power Industry's regulation is annual to be detected once, and the time is 15 days) of shaking, as note abnormalities and promptly take measures to prevent the generation of power outage.The wind Vibration Meter is exactly a kind of instrument that electric wire wind shakes of measuring.
Present wind Vibration Meter both domestic and external can be divided three classes by the difference of sensor: the first kind is pickoff and radio transmission type, this kind instrument is installed on the transmission line of electricity, electromagnetic interference (EMI) is big, can't adopt the lock of general detection weak signal to raise technology, because instrument needs continuous working 15 days, need the power supply of a constant volume in addition, the weight of instrument is increased, overweight weight equals to have installed an anti rattler on lead, make the data of measuring can not reflect the degree that lead wind shakes truly.The wind Vibration Meter of manufacturer's manufacturing as domestic, the measuring accuracy of frequency＜± 10%, the measuring accuracy of amplitude＜+5%, weight is 7.3kg.Second class is a magnetic tape type wind Vibration Meter, and the vibration signal that sensor is experienced is stored in the tape, pulls down from circuit after 15 days, takes out tape and analytic signal, though this wind Vibration Meter electromagnetic interference (EMI) is little, also need power supply, thereby weight is not light yet.The measuring accuracy of its frequency and amplitude is respectively ± 3.5%, ± 5%, weight is 1kg.In addition, its measurement result will just be known after 15 days, can not in time report to the police.The 3rd class is a laser class wind Vibration Meter, though this instrument has no any electromagnetic interference (EMI), lightweight advantage costs an arm and a leg, complex structure.
For overcoming the above-mentioned shortcoming that exists in the prior art, seek a kind of measuring accuracy height, in light weight, speed is fast and can in time measures the shake wind Vibration Meter sensor of degree of lead wind, the special the utility model that proposes.
Proposing for finishing of task has adopted following technical scheme.
Employing reaches the Fibre Optical Sensor of forming with the sensor contact on the rigidly connected metal sphere of level crossing or the face of cylinder by level crossing, GRIN Lens, sensor changes the lead mechanical oscillation signal that is caused by gentle breeze into light signal, by optical fiber light signal is sent to ground from high voltage overhead line, conversion and amplification through optical receiver, enter Computer Processing, just can demonstrate the size of angle of throw immediately.It is characterized in that the housing lower end is fixed for the wire clamp of clamping wire, end in the housing is established GRIN Lens, one end of lens is inlet end and connects optical fiber, the other end is that directional light is penetrated end, and the other end of housing is provided with level crossing, and level crossing connects connecting link respectively and perpendicular to the rod that touches of connecting link, touch rod and pass housing, metal contact is established in its end, and contact is pressed in lead, and an end of above-mentioned connecting link is established holddown spring.The axis of GRIN Lens and the angle of surface level be 0～wind Vibration Meter range angle 3/4ths between, the distance between its GRIN Lens and the level crossing is the range tangent of an angle value of the spot diameter of autohemagglutination lens divided by the wind Vibration Meter.
By the Fibre Optical Sensor wind Vibration Meter that above Fibre Optical Sensor is made, the measuring accuracy of its frequency and amplitude is respectively≤± 2% and≤± 5%, probe weight＜500g has in light weightly, the measuring accuracy height can in time be measured the shake advantage of degree of lead wind.
Claims (3)
1, the Fibre Optical Sensor that shakes of a kind of high voltage transmission line wind of forming by chuck, housing, contact, it is characterized in that housing 7 lower ends are fixed for the wire clamp 8 of clamping wire 9, end in the housing 7 is established GRIN Lens 12, one end of lens 12 is inlet end 11 and connects optical fiber 6, the other end is that directional light is penetrated end 5, the other end of housing 7 is provided with level crossing 4, level crossing 4 connect respectively connecting link 3 and perpendicular to connecting link 3 touch the rod 1, touch rod 1 and pass housing 7 its ends and establish metal contact 10, an end of above-mentioned connecting link 3 is established holddown spring 2.
2, the Fibre Optical Sensor that shakes of survey high voltage transmission line wind according to claim 1, the angle that it is characterized in that the axis of GRIN Lens 12 and surface level be 0～wind Vibration Meter range angle 3/4ths between.
3, the Fibre Optical Sensor that shakes of survey high voltage transmission line wind according to claim 1 is characterized in that the distance between GRIN Lens 12 and the level crossing 4 is the range tangent of an angle value of the spot diameter of GRIN Lens divided by the wind Vibration Meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221456 CN2135773Y (en) | 1992-10-14 | 1992-10-14 | Optical fibre sensor for testing wind-vibration of high-voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221456 CN2135773Y (en) | 1992-10-14 | 1992-10-14 | Optical fibre sensor for testing wind-vibration of high-voltage transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2135773Y true CN2135773Y (en) | 1993-06-09 |
Family
ID=33768249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221456 Expired - Lifetime CN2135773Y (en) | 1992-10-14 | 1992-10-14 | Optical fibre sensor for testing wind-vibration of high-voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2135773Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925984A (en) * | 2013-11-05 | 2014-07-16 | 国家电网公司 | Optical fiber vibrating sensor and power transmission line aeolian vibration monitoring system applying the same |
| CN104266741A (en) * | 2014-09-28 | 2015-01-07 | 西安工程大学 | Calibrating platform and calibrating method used for aeolian vibration sensor of electric transmission line |
| CN104330148A (en) * | 2014-11-21 | 2015-02-04 | 上海欣影电力科技股份有限公司 | Non-contact type cable aeolian vibration measuring instrument |
| CN104483007A (en) * | 2014-11-19 | 2015-04-01 | 华北电力大学（保定） | Overhead power transmission line vibration monitoring system and method |
| CN106197647A (en) * | 2016-07-01 | 2016-12-07 | 国网河南省电力公司漯河供电公司 | Transmission line galloping detector |
-
1992
- 1992-10-14 CN CN 92221456 patent/CN2135773Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925984A (en) * | 2013-11-05 | 2014-07-16 | 国家电网公司 | Optical fiber vibrating sensor and power transmission line aeolian vibration monitoring system applying the same |
| CN103925984B (en) * | 2013-11-05 | 2019-03-08 | 国家电网公司 | Optical fibre vibration sensor and the transmission line of electricity aeolian vibration monitoring system for applying it |
| CN104266741A (en) * | 2014-09-28 | 2015-01-07 | 西安工程大学 | Calibrating platform and calibrating method used for aeolian vibration sensor of electric transmission line |
| CN104266741B (en) * | 2014-09-28 | 2017-10-03 | 西安工程大学 | Calibrating platform and scaling method for transmission line of electricity aeolian vibration sensor |
| CN104483007A (en) * | 2014-11-19 | 2015-04-01 | 华北电力大学（保定） | Overhead power transmission line vibration monitoring system and method |
| CN104483007B (en) * | 2014-11-19 | 2017-02-22 | 华北电力大学（保定） | Overhead power transmission line vibration monitoring system and method |
| CN104330148A (en) * | 2014-11-21 | 2015-02-04 | 上海欣影电力科技股份有限公司 | Non-contact type cable aeolian vibration measuring instrument |
| CN104330148B (en) * | 2014-11-21 | 2018-02-27 | 上海欣影电力科技股份有限公司 | A kind of contactless cable aeolian vibration measuring instrument |
| CN106197647A (en) * | 2016-07-01 | 2016-12-07 | 国网河南省电力公司漯河供电公司 | Transmission line galloping detector |
| CN106197647B (en) * | 2016-07-01 | 2019-02-22 | 国网河南省电力公司漯河供电公司 | Transmission line galloping detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |