CN105953956A - Large-capacity power transmission line strain tower strain measuring device - Google Patents
Large-capacity power transmission line strain tower strain measuring device Download PDFInfo
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- CN105953956A CN105953956A CN201610252401.5A CN201610252401A CN105953956A CN 105953956 A CN105953956 A CN 105953956A CN 201610252401 A CN201610252401 A CN 201610252401A CN 105953956 A CN105953956 A CN 105953956A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000004224 protection Effects 0.000 claims description 44
- 229920001971 elastomer Polymers 0.000 claims description 27
- 239000000806 elastomer Substances 0.000 claims description 27
- 230000003287 optical effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- 239000010931 gold Substances 0.000 claims description 9
- 229910052737 gold Inorganic materials 0.000 claims description 9
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- 229910052751 metal Inorganic materials 0.000 claims description 6
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- 230000007774 longterm Effects 0.000 abstract description 3
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- 238000009826 distribution Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
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- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
Abstract
The invention belongs to the field of power systems and especially relate to a large-capacity power transmission line strain tower strain measuring device characterized by comprising a fiber signal modulating-demodulating device and a plurality of measuring sensors. A pulse signal modulator converts a continuous spectrum output by a tunable laser into a pulse signal to be output under the control of a signal generator. The pulse signal enhanced by an erbium-doped fiber amplifier enters the measuring sensors via a circulator. A pulse signal reflected by the measuring sensors enters a high-speed signal receiver via the circulator so that photoelectric signal conversion is achieved and the signal is sampled by a control computer. The large-capacity power transmission line strain tower strain measuring device is applicable to long-term measurement in various complex environments. The measuring sensors are resistant to electromagnetic interference and do not require an operating power supply. A distributed sensor network formed by the large-capacity power transmission line strain tower strain measuring device solves a problem that a conventional wavelength division multiplexing sensor network is small in capability and limited in distributed measure range, and may easily achieve spatial positioning of the measuring sensors.
Description
Technical field
The invention belongs to field of power, particularly relate to a kind of jumbo strain tower of transmission line tension force
Measurement apparatus.
Background technology
In various natural disasters, the safe operation of power system is caused and has a strong impact on by ice damage, makes to electrical network
The loss become is the most serious.Especially transmission line of electricity large area icing is easily caused line conductor load increases,
Thus cause overhead transmission line conductor fracture, shaft tower to topple over and the generation of the accident such as covering ice for insulator flashover,
Then the generation even large area operation of power networks causing great electric power accident is paralysed.Worldwide transmission of electricity
Line ice coating accident occurs more frequent, has record display Norway, the U.S., Canada, Britain, Russia sieve
The most once there is serious powerline ice-covering accident in this and Japan and other countries, the safe operation to this country's electrical network
Cause and have a strong impact on.China is extensive due to transmission line of electricity distribution, and by macroclimate and mima type microrelief,
The impact of microclimate condition, line ice coating accident the most frequently occurs.Rare large area icing in 2008
Affect the several provinces and cities of south China ten, the direct losses that electric power facility is caused by lasting sleet and snow ice weather
More than hundred billion.In recent years, the electrical equipment fault and the little scope that caused due to transmission line of electricity accumulated snow icing are stopped
Electrification occurs the most often.
Anchor support, as the major bearing structures of overhead transmission line, holds in the case of the serious icing of overhead transmission line
Shaft tower is easily occurred to topple over.Powerline ice-covering on-line monitoring can react the actual of circuit timely and accurately and cover
Ice condition condition, provides reliable line ice coating information for polling transmission line staff, large area is occurring
During line ice coating, remove for staff's formulation, ice-melt measure provides reference frame, can effectively reduce line
The loss that road icing brings.Currently for the research of transmission line of electricity on-line monitoring define video monitoring method,
Weather prognosis method, accumulated ice measurement method, conductor temperature and measurement of dip angle method, capacitance measurement and weight method.
Wherein weight method is because measuring directly, and computation model is simple, and sensor is easy for installation and is widely used.
The most commonly used is traditional resistive foil gauge sensing measurement mode, is obtained by electric measurement means
Lead status information, but there is precision type bridge measuring circuit easily by on-the-spot strong electromagnetic environmental disturbances, badly temperature
Under wet environment, longtime running is unstable, needs the shortcomings such as working power.Existing fiber grating measuring sensor
Strain measurement element use gluing installation, barbola work complicated, and long-term cold and hot change be easily caused
Organic strain glue performance declines, strain transfer decreased effectiveness.Existing fiber grating measuring sensor mostly is
Pillar measurement structure, directly measures the strain under aerial condutor stretches of the pillar strain structure, it is considered to elastic
Body tensile strength problem, measurement sensitivity is the most relatively low, and generally there is relatively large time lag error.Existing
Fiber Bragg grating sensor network many employings wavelength-division multiplex technique, sets using wideband light source as fiber-optic signal input
Standby, each measurement fiber grating need to leave the dynamic range of 5nm, sensor network capacity by light source spectrum width,
Light source power and adjacent gratings spacing limit, and channel quantity is limited.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of jumbo strain tower of transmission line tension force and surveys
Amount device, it is characterised in that described measurement apparatus include fiber-optic signal modulation-demodulation device 13 and several
Measure sensor 14；
Described fiber-optic signal modulation-demodulation device 13 includes that control computer, tunable laser, signal are sent out
Raw device, pulse signal modulation device, erbium-doped fiber amplifier, circulator and high speed signal receptor；Described
Control computer and controlled output wavelength and the output of signal generator of tunable laser by output signal
Pulse frequency, the output wavelength of tunable laser is as the input signal of pulse signal modulation device, signal
The output pulse frequency of generator as the control signal of pulse signal modulation device, pulse signal modulation device
The control signal input signal by pulse signal modulation device modulated pulse signal manipulator, so that pulse
Signal modulator output sets the light pulse signal of wavelength, through Erbium-doped fiber amplifier after this light pulse signal
Device and circulator enter the measurement sensor 14 in sensor network, measure sensor 14 and belong to Fibre Optical Sensor
Class sensor, traditional gold utensil that whole measurement sensor 14 substitutes on shaft tower is directly connected to insulator chain, when
Shaft tower aerial line icing causes pulling force at insulator chain to increase, and measures the elastomer Tensile in sensor 14
Effect causes surface strain to increase, and measures the fiber grating strain meter 15 perception elastomer in sensor 14
The change of surface strain so that the centre wavelength of optical grating reflection ripple offsets, by measuring, sensor 14 is anti-
The pulse signal being emitted back towards enters high speed signal receptor through circulator, it is achieved the conversion of photosignal, and
The sampling processing of signal is completed by control computer；.
Described measurement sensor 14 include elastomer structure, circular protection sleeve 9, armored optical cable fixture,
Fiber grating strain meter 15；
Described elastomer structure is by upper link 1, upper plectane 2, S type structure 3, web 4, the edge of a wing 5, two
Individual protection structure 6, lower plectane 7 and lower link 8 form；Upper link 1 and lower link 8 are positioned at elastomer knot
The two ends of structure, upper plectane 2 is connected with upper link 1 and S type structure 3 respectively；Lower plectane 7 respectively with S
Type structure 3 and lower link 8 connect；Described protection structure 6 is by protection screw 16 and protection cylinder 17 structure
Becoming, two protection structures 6 lay respectively at the cantilever beam at S type structure 3 two ends, connecting cantilever beam and S
Type structure 3 body；Described web 4 lays respectively at S type structure 3 centre position, is connected with the edge of a wing 5；
Described circular protection sleeve 9 is arranged on outside elastomer structure from top to bottom, and leaves armored optical cable
12 line outlets, with protection structure 6 coordinate composition to internal S type structure 3 and fiber grating strain meter 15
Protection；
Described armored optical cable fixture by fixing metal derby 10 and external stability interface 11 forms, fixing gold
Belonging to block 10 to be arranged on lower plectane 7 for fixing armored optical cable 12, external stability interface 11 uses soft material
Embedding is fixedly connected on circular protection sleeve 9 for drawing armored optical cable；
Described fiber grating strain meter 15 is arranged on web 4 by spot welding mode, is 45 ° with horizontal direction
Angle.
When described fiber-optic signal modulation-demodulation device 13 works, the most reciprocal output different wave length pulse signal
Carrying out length scanning, device output wavelength scope contains the center of all fiber gratings of whole sensor network
Wavelength value.
Described control computer, tunable laser, signal generator, pulse signal modulation device, er-doped
Fiber amplifier, circulator, high speed signal receptor use centralized integrative installation technology, modulated signal control
System and the sampling of measurement signal, conversion are all by controlling computer realization.
Described elastomer structure is the overall knot using 35CrMnSiA alloy steel products package integral to be processed to form
Structure.
Described measurement sensor 14 is used for replacing gold utensil at 110kV overhead transmission line anchor support, upper link 1 with
PH type gold utensil is connected, and lower link 8 is connected with U-shaped link；The effective range measuring sensor 14 is
0～10kN, its entire length 278mm.
Described circular protection set jacket casing 9 is in the centre position of whole sensor, highly 121mm, internal diameter
110mm, external diameter 115mm；Described upper plectane 2 diameter 110mm, lower plectane 7 diameter 115mm.
The length, width and height a size of 84mm*50mm*101mm of described S type structure；Described web 4 is tied for elastomer
The bottom surface of the square shrinkage pool of structure both sides, its thickness is 4mm；Described shrinkage pool is referred to as blind hole, and its length of side is 46mm.
Described fiber grating strain meter 15 utilizes the mechanical compensation method compensation temperature change impact on strain measurement,
Need not individually carry out temperature-compensating.
Protection screw 16 and protection cylinder 17 distance between the two of described protection structure 6 are 0.2mm.
Beneficial effect
The long-term survey that the anchor support tension measuring device that the present invention provides is suitable under various severe complex environment
Amount, measures sensor electromagnetism interference, it is not necessary to working power；Whole measurement sensor uses glue-free system
Make, solve existing optical fiber measurement sensor use bonding agent barbola work complicated and strain glue aging after
The problem of strain transfer weak effect；Measure sensor elastomer and use S type strain structure, at two coxostermums
One fiber grating strain meter of each installation, the shadow of temperature during employing mechanical compensation method elimination strain measurement
Ring, it is not necessary to installing optical fiber grating temperature meter, strain measurement is highly sensitive, and lag error is little；Measure and pass
The S type strain structure mid portion of sensor elastomer is I-beam, can be greatly improved opposing deflection load-bearing stress
Ability；Measuring sensor to measure in useful range, elastomer is the shearing structure of S type, undertakes load
Beyond protecting structure Guan Bi during useful range, force structure is by the shearing pillar that is changed into of S type, and opposing is drawn
Cutting capacity significantly improves；Fiber-optic signal modulation-demodulation device constitutes distributed sensing with multiple measurement sensors
Device network, solves tradition wavelength-division multiplied sensor network capacity little, the problem that distribution measuring scope is limited,
The convenient space orientation realizing measuring sensor.
Accompanying drawing explanation
Fig. 1 is the composition diagram of the jumbo strain tower of transmission line tension measuring device that the present invention provides；
Fig. 2 a-b is front view and the side view of the measurement sensor elastomer that the present invention provides；
Fig. 3 is the front view of S type structure；
Fig. 4 is the sectional view of the armouring fixture measuring sensor that the present invention provides.
Wherein, the upper link of 1-；The upper plectane of 2-；3-S type structure；4-web；The 5-edge of a wing；6-protects structure；
Plectane under 7-；Link under 8-；9-circle protection sleeve；10-fixes metal derby；11-external stability interface；
12-armored optical cable；13-fiber-optic signal modulation-demodulation device；14-measures sensor；15-fiber grating should
Become meter；16-protects screw；17-protects cylinder.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is elaborated.Below in conjunction with the accompanying drawings, preferred embodiment is made in detail
Describe in detail bright.
Fig. 1 is the composition diagram of the jumbo strain tower of transmission line tension measuring device that the present invention provides.
The measurement apparatus of the present invention includes fiber-optic signal modulation-demodulation device 13 and several measurement sensors 14；Institute
State fiber-optic signal modulation-demodulation device 13 include control computer, tunable laser, signal generator,
Pulse signal modulation device, erbium-doped fiber amplifier, circulator and high speed signal receptor；Described pulse is believed
The continuous spectrum that tunable laser exports is converted under the control action of signal generator by number manipulator
Output of pulse signal, the pulse signal strengthened through erbium-doped fiber amplifier enters measurement sensor through circulator
14, measurement sensor 14 pulse signal reflected enters high speed signal receptor through circulator, real
The conversion of existing photosignal, and the sampling processing of signal is completed by control computer；Fiber-optic signal modulatedemodulate
When adjusting device 13 to work, the most reciprocal output different wave length pulse signal carries out length scanning, and device exports
Wave-length coverage contains the centre wavelength value of all fiber gratings of whole sensor network.Control computer, can
Tuned laser, signal generator, pulse signal modulation device, erbium-doped fiber amplifier, circulator, height
Speed signal receiver uses centralized integrative installation technology, and modulated signal controls and measures the sampling of signal, turns
Change all by controlling computer realization.Large number of measurement sensor 14 fills with fiber-optic signal modulation /demodulation
Put 13 and collectively form distributed measurement sensor network
Fig. 2 a-b is the tonometric sensor cut-away view that the present invention provides.Upper link 1, upper plectane
2, S type structure 3, web 4, the edge of a wing 5, protection structure 6, lower plectane 7 and lower link 8 form elasticity
Body structure, elastomer structure is the overall knot using 35CrMnSiA alloy steel products package integral to be processed to form
Structure.Upper link 1 and lower link 8 are positioned at the two ends of elastomer structure, upper plectane 2 respectively with upper link 1
Connect with S type structure 3；Lower plectane 7 is connected with S type structure 3 and lower link 8 respectively；Described protection
Structure 6 is made up of protection screw 16 and protection cylinder 17, lays respectively at the cantilever at S type structure 3 two ends
Liang Chu, connecting cantilever beam and S type structure 3 body；Described web 4 lays respectively in the middle of S type structure 3
Position, is connected with the edge of a wing 5；Circular protection sleeve 9 is arranged on outside elastomer structure from top to bottom, and
Leave armored optical cable 12 line outlet, with protection structure 6 coordinate composition to internal S type structure 3 and optical fiber
The protection of grating strain meter 15；Fiber grating strain meter 15 is arranged on web 4 by spot welding mode,
It is 45 ° of angles with horizontal direction.Measure sensor 14 and be used for replacing gold at 110kV overhead transmission line anchor support
Tool, upper link 1 is connected with PH type gold utensil, and lower link 8 is connected with U-shaped link；Measure sensor 14
Effective range be 0～10kN, its entire length 278mm.Circular protection set jacket casing 9 is in whole
The centre position of sensor, highly 121mm, internal diameter 110mm, external diameter 115mm；Described upper plectane 2 is straight
Footpath 110mm, lower plectane 7 diameter 115mm.The length, width and height a size of 84mm*50mm*101mm of S type structure；
Described web 4 is the bottom surface of the square shrinkage pool of elastomer structure both sides, and its thickness is 4mm；Described shrinkage pool claims
For blind hole, its length of side is 46mm.Fiber grating strain meter 15 utilizes the change of mechanical compensation method compensation temperature right
The impact of strain measurement, it is not necessary to individually carry out temperature-compensating.
S type structure 3, web 4, the edge of a wing 5 constitute the strain sensing part of measurement apparatus, its intermediate structure
It is the i shaped cross section being made up of with the edge of a wing 5 web 4, compared with conventional cross-section, in same cross-sectional area
In the case of, it being effectively increased the moment of inertia in cross section, the edge of a wing 5 undertakes most deflection load-bearing stress, web 4
On stress distribution uniform, measure highly sensitive, tensile load power is converted to shear masterpiece by S type structure 3
At web 4, the braking problems that pole structure drawing process repeatedly produces can be improved；S type structure 3
Corner uses round-corner transition so that the stress distribution transition in drawing process of strain sensing structure is uniform, carries
The mechanical strength of height measurement device elastomer；
Protection screw 16 and protection cylinder 17 distance between the two of protection structure 6 are 0.2mm.Surveying
When amount device undertakes the stretching of relatively underload, portable protective gaps does not closes, and whole elastomer force structure is S type,
Can effectively measure real load value；When measurement apparatus undertakes heavier load stretching, portable protective gaps closes,
Elastomer force structure is changed into pillar by S type, is protection structure in circle, wherein obvious black line
Being space, space does not closes, and shape seems " 2 " (S type), and after Guan Bi, shape seems " 8 " (pillar),
Now measurement apparatus enters guard mode, does not possess measurement function, but opposing is broken ability and significantly improved.
Fig. 3 is the front view of S type structure.
Two fiber grating strains other points of score for strain measurement are welded in the square blind hole in S type structure 3 both sides
At web, it is that 45 ° of angles are installed with horizontal direction, when measurement apparatus undertakes load, S type structure 3
Pulling force is changed into shearing strain diagonally on web 4, fiber grating strain meter installation position, both sides
The shearing strain amount putting place is equal in magnitude, in opposite direction, uses mechanical compensation method by two fiber grating strains
The strain measurement value of meter is poor, the compensation temperature change impact on strain measurement, saves a fiber grating
The installation of thermometer, doubles strain measurement sensitivity simultaneously；Deflection load-bearing stress major part during measurement
Undertaken by the edge of a wing 5, shearing strain distribution on web will not be produced impact.
Fig. 4 is the sectional view of the armouring fixture measuring sensor that the present invention provides, described armored optical cable
Fixture is by fixing metal derby 10 and external stability interface 11 forms, and fixing metal derby 10 is arranged on lower circle
Being used for fixing armored optical cable 12 on plate 7, external stability interface 11 soft material embedding is fixedly connected on circle
It is used for drawing armored optical cable on protection sleeve 9, bigger bending, shadow occur when preventing armored optical cable 12 external
Ring optical signal transmission.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not
Being confined to this, any those familiar with the art, can in the technical scope that the invention discloses
The change readily occurred in or replacement, all should contain within protection scope of the present invention.Therefore, the present invention
Protection domain should be as the criterion with scope of the claims.
Claims (10)
1. a jumbo strain tower of transmission line tension measuring device, it is characterised in that described measurement
Device includes fiber-optic signal modulation-demodulation device (13) and several measurements sensor (14)；
Described fiber-optic signal modulation-demodulation device (13) includes controlling computer, tunable laser, letter
Number generator, pulse signal modulation device, erbium-doped fiber amplifier, circulator and high speed signal receptor；
Described control computer controls the output wavelength of tunable laser and signal generator by output signal
Output pulse frequency, the output wavelength of tunable laser as the input signal of pulse signal modulation device,
The output pulse frequency of signal generator is as the control signal of pulse signal modulation device, pulse signal modulation
The control signal of the device input signal by pulse signal modulation device modulated pulse signal manipulator, so that
The output of pulse signal modulation device sets the light pulse signal of wavelength, through Er-doped fiber after this light pulse signal
Amplifier and circulator enter the measurement sensor (14) in sensor network, measure sensor (14) and belong to
In Fibre Optical Sensor class sensor, traditional gold utensil that whole measurement sensor (14) substitutes on shaft tower directly connects
Connect insulator chain, when shaft tower aerial line icing causes pulling force at insulator chain to increase, measure sensor (14)
In elastomer Tensile effect cause surface strain to increase, measure the fiber grating in sensor (14)
The change of strain gauge (15) perception surface of elastomer strain so that the centre wavelength of optical grating reflection ripple occurs
Skew, measurement sensor (14) pulse signal reflected enters high speed signal through circulator and receives
Device, it is achieved the conversion of photosignal, and the sampling processing of signal is completed by control computer.
A kind of jumbo strain tower of transmission line tension measuring device, its
Being characterised by, described measurement sensor (14) includes elastomer structure, circular protection sleeve (9), armour
Dress optical cable fixture, fiber grating strain meter (15)；
Described elastomer structure by upper link (1), upper plectane (2), S type structure (3), web (4),
The edge of a wing (5), two protections structure (6), lower plectane (7) and lower links (8) form；Upper link (1)
With the two ends that lower link (8) is positioned at elastomer structure, upper plectane (2) respectively with upper link (1) and S
Type structure (3) connects；Lower plectane (7) is connected with S type structure (3) and lower link (8) respectively；
Described protection structure (6) is made up of protection screw (16) and protection cylinder (17), two protection structures
(6) lay respectively at the cantilever beam at S type structure (3) two ends, connecting cantilever beam and S type structure (3)
Body；Described web (4) is positioned at S type structure (3) centre position, for the side of elastomer structure both sides
The bottom surface of shape shrinkage pool, is connected with the edge of a wing (5)；Described circular protection sleeve (9) is arranged on from top to bottom
Outside elastomer structure, and leave armored optical cable (12) line outlet, with protection structure (6) coordinate structure
The most internal S type structure (3) and the protection of fiber grating strain meter (15)；
Described armored optical cable fixture by fixing metal derby (10) and external stability interface (11) forms,
Fixing metal derby (10) is arranged on lower plectane (7) and is used for fixing armored optical cable (12), external stability
Interface (11) is fixedly connected on upper being used for of circular protection sleeve (9) with soft material embedding and draws armored optical cable；
Described fiber grating strain meter (15) is arranged on web (4) by spot welding mode, with level side
To in 45 ° of angles.
A kind of jumbo strain tower of transmission line tension measuring device, its
It is characterised by, during the work of described fiber-optic signal modulation-demodulation device (13), the different ripple of the most reciprocal output
Long pulse signal carries out length scanning, and wave-length coverage contains in all fiber gratings of whole sensor network
Cardiac wave long value.
A kind of jumbo strain tower of transmission line tension measuring device, its
Be characterised by, described control computer, tunable laser, signal generator, pulse signal modulation device,
Erbium-doped fiber amplifier, circulator, high speed signal receptor use centralized integrative installation technology, modulation letter
Number control and measure signal sampling, conversion all by control computer realize.
A kind of jumbo strain tower of transmission line tension measuring device, its
Being characterised by, described elastomer structure uses 35CrMnSiA alloy steel products package integral to be processed to form
Overall structure.
A kind of jumbo strain tower of transmission line tension measuring device, its
Being characterised by, described measurement sensor (14) is used for replacing gold utensil at 110kV overhead transmission line anchor support,
Upper link (1) is connected with PH type gold utensil, and lower link (8) is connected with U-shaped link；Measure sensor (14)
Effective range be 0～10kN, its entire length 278mm.
A kind of jumbo strain tower of transmission line tension measuring device, its
It is characterised by, the described circular centre position protecting set jacket casing (9) to be in whole sensor, highly 121mm,
Internal diameter 110mm, external diameter 115mm；Described upper plectane (2) diameter 110mm, lower plectane (7) diameter 115mm.
A kind of jumbo strain tower of transmission line tension measuring device, its
It is characterised by, the length, width and height a size of 84mm*50mm*101mm of described S type structure；Described web (4)
Thickness be 4mm；Described shrinkage pool is referred to as blind hole, and its length of side is 46mm.
A kind of jumbo strain tower of transmission line tension measuring device, its
Being characterised by, described fiber grating strain meter (15) utilizes mechanical compensation method compensation temperature to change strain
The impact measured, it is not necessary to individually carry out temperature-compensating.
A kind of jumbo strain tower of transmission line tension measuring device,
It is characterized in that, the protection screw (16) of described protection structure (6) and protection cylinder (17) both it
Between distance be 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252401.5A CN105953956A (en) | 2016-04-21 | 2016-04-21 | Large-capacity power transmission line strain tower strain measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252401.5A CN105953956A (en) | 2016-04-21 | 2016-04-21 | Large-capacity power transmission line strain tower strain measuring device |
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| CN105953956A true CN105953956A (en) | 2016-09-21 |
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| CN201610252401.5A Pending CN105953956A (en) | 2016-04-21 | 2016-04-21 | Large-capacity power transmission line strain tower strain measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328498A (en) * | 2017-08-11 | 2017-11-07 | 安徽天光传感器有限公司 | A kind of link sensor of pole structure |
| CN109163744A (en) * | 2018-07-23 | 2019-01-08 | 中国船舶重工集团公司第七〇五研究所 | A kind of Fiber Bragg Grating Sensor Array and its Wavelength demodulation system |
| CN115717951A (en) * | 2022-10-13 | 2023-02-28 | 无锡盛赛传感科技有限公司 | High-performance piezoresistive ceramic tension sensor, processing technology thereof and tool for processing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011232138A (en) * | 2010-04-27 | 2011-11-17 | Neubrex Co Ltd | Distribution type optical fiber sensor |
| CN202793660U (en) * | 2012-08-14 | 2013-03-13 | 平湖波汇通信科技有限公司 | Optical fiber sensor-based pulling force monitoring system for overhead power transmission line |
| CN103162742A (en) * | 2013-03-29 | 2013-06-19 | 李裔 | Novel distributed optical fiber temperature and stress sensor |
| CN103344311A (en) * | 2013-06-24 | 2013-10-09 | 华北电力大学 | Overload protection type optical fiber Bragg grating weighing sensor and icing monitoring system |
| CN204422114U (en) * | 2015-01-14 | 2015-06-24 | 西安工程大学 | Based on the powerline ice-covering mechanics sensor of fiber grating |
-
2016
- 2016-04-21 CN CN201610252401.5A patent/CN105953956A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011232138A (en) * | 2010-04-27 | 2011-11-17 | Neubrex Co Ltd | Distribution type optical fiber sensor |
| CN202793660U (en) * | 2012-08-14 | 2013-03-13 | 平湖波汇通信科技有限公司 | Optical fiber sensor-based pulling force monitoring system for overhead power transmission line |
| CN103162742A (en) * | 2013-03-29 | 2013-06-19 | 李裔 | Novel distributed optical fiber temperature and stress sensor |
| CN103344311A (en) * | 2013-06-24 | 2013-10-09 | 华北电力大学 | Overload protection type optical fiber Bragg grating weighing sensor and icing monitoring system |
| CN204422114U (en) * | 2015-01-14 | 2015-06-24 | 西安工程大学 | Based on the powerline ice-covering mechanics sensor of fiber grating |
Non-Patent Citations (1)
| Title |
|---|
| 马国明: "基于光纤光栅传感器的架空输电线路覆冰在线监测系统的研究", 《中国博士学位论文全文数据库工程科技II辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328498A (en) * | 2017-08-11 | 2017-11-07 | 安徽天光传感器有限公司 | A kind of link sensor of pole structure |
| CN109163744A (en) * | 2018-07-23 | 2019-01-08 | 中国船舶重工集团公司第七〇五研究所 | A kind of Fiber Bragg Grating Sensor Array and its Wavelength demodulation system |
| CN115717951A (en) * | 2022-10-13 | 2023-02-28 | 无锡盛赛传感科技有限公司 | High-performance piezoresistive ceramic tension sensor, processing technology thereof and tool for processing |
| CN115717951B (en) * | 2022-10-13 | 2023-11-21 | 无锡盛赛传感科技有限公司 | High-performance piezoresistive ceramic tension sensor, processing technology thereof and tooling for processing |
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