CN208188211U - Rotary optical electric-field sensor - Google Patents
Rotary optical electric-field sensor Download PDFInfo
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- CN208188211U CN208188211U CN201820605185.2U CN201820605185U CN208188211U CN 208188211 U CN208188211 U CN 208188211U CN 201820605185 U CN201820605185 U CN 201820605185U CN 208188211 U CN208188211 U CN 208188211U
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Abstract
The utility model discloses a kind of rotary optical electric-field sensors for belonging to technical field of electric field measurement.Including laser diode drive, laser diode, optical electric-field sensing head, photodetector, signal processing system and photoelectric sensor.The sensor incudes electric field strength to be measured by metal induction plate, it applies it on the metal layer of the electric light sensing crystal two sides evaporation in sensing head, laser diode is driven using laser diode drive and exports the direct current light intensity of high stable, optical signal reaches photodetector after the optical electric-field sensing head through rotating, with the rotation speed of photoelectric sensor measurement sensing head, the revolving speed of the electric signal of photodetector output and photoelectric sensor output is sent to signal processing system respectively.The sensor can eliminate influence of the factors such as light intensity, temperature to sensor stability, by revolving sensing head, can eliminate influence of the charge shift to sensor accuracy class, improve measurement accuracy.
Description
Technical field
The utility model belongs to technical field of electric field measurement more particularly to a kind of rotary optical electric-field sensor.
Background technique
Recently as greatly improving for Operating Voltage grade, electric field measurement has more extensive in the power system
Application, such as: power transmission and transformation equipment state monitoring, electrical equipment reasonably select, high-voltage test and corona discharge research, high pressure
System Analysis of Electromagnetic Environment etc..Traditional field measurement device is because volume is big, insulation is difficult, response band is narrow, dynamic range is small etc.
Disadvantage is difficult to meet modern electric measurement demand.Optical electric field sensor uses crystalline material as sensor information, inclined using line
When vibration light through the electrooptical material being placed in extra electric field, the angle of the change of polarized direction characteristic directly proportional to extra electric field,
Realize the measurement to electric field.Due to its good insulation preformance, electromagnetism interference is strong, stability is high the advantages that with wide application before
Scape.Existing optical electric field sensor is open cycle system mostly, and sensor longtime running stability and measurement accuracy are easy light
By force, the influence of the factors such as temperature, drift charge.The typical thinking for improving stability and measurement accuracy at present is: using light intensity and
The disturbing factors such as temperature change more slow feature, by the output of the disturbing factors such as light intensity, temperature in the output of sensor
It is handled as DC component, then the AC signal of modulation and DC component is divided by, can eliminated the effects of the act to a certain extent.
But the method is only applicable to AC field, and fails the influence for eliminating charge shift and space charge exports sensor.For
The measurement of DC electric field, only DC component in modulated signal, does not include AC compounent, thus is difficult to change by the above method
Kind sensor performance.
Utility model content
In response to the above problems, the present invention proposes a kind of rotary optical electric-field sensors, which is characterized in that including
It is visited along the sequentially connected laser diode drive 1 in optic path direction, laser diode 2, optical electric-field sensing head 10, photoelectricity
Survey device 11；Wherein, optical electric-field sensing head 10 includes first be successively encapsulated in the sensing casing being made of insulating material
Collimator 3, the polarizer 4, quarter-wave plate 5, electric light sense crystal 6, analyzer 7, the second collimator 8；Photoelectric whirl sensing
Device 9 is placed in one end of optical electric-field sensing head 10, is respectively connected to signal processing with the rotary optical electric-field sensor
System 15, the signal processing system 15 include sequentially connected analog signal data acquisition system 12, filter unit 13, voltage
Signal processing unit 14；
The rotary optical electric-field sensor incudes electric field strength to be measured by metal induction plate, and applies it to
Electric light senses on the metal layer of 6 two sides of crystal evaporation；Laser diode drive 1 is with constant current or constant power-mode work
Make, for driving laser diode 2 to export the direct current light intensity of high stable, after optical electric-field sensing head 10 of the optical signal by rotation
Reach photodetector 11；Photodetector 11 is sent to signal processing system 15 after the optical signal of input is converted to electric signal；
Photoelectric sensor 9 measures the revolving speed of rotary sensing head 10 by principle of reflection, and will be at the signal input signal of measurement
Reason system 15.
The optical electric-field sensing head 10 is placed in the plane vertical with direction of an electric field to be measured, and sensing head 10 is in motor
Under 28 drive, rotated by rotary shaft of optic path direction.
A kind of rotary optical electric-field sensor, including along the sequentially connected laser diode drive in optic path direction
1, laser diode 2, optical electric-field sensor-based system 32, photodetector 11, the optical electric-field sensor-based system 32 include successively
The first optical fiber slip ring 16, optical electric-field sensing head 10, the second optical fiber slip ring 17 and the photoelectric sensor 9 and electricity of connection
Motivation 28, wherein optical electric-field sensing head 10 includes first be successively encapsulated in the sensing casing being made of insulating material
Collimator 3, the polarizer 4, quarter-wave plate 5, electric light sense crystal 6, analyzer 7, the second collimator 8；First optical fiber
Slip ring 16 is mounted on the first optical fiber slip ring mounting plate 18, is arranged in the input terminal of sensing head 10, issues laser diode 2
To the sensing head of rotation, the second optical fiber slip ring 17 is mounted on the second optical fiber slip ring mounting plate 21 static optical signal transmission, cloth
It is placed in the output end of sensing head 10, the optical signal transmission for exporting rotation sensing head to static photodetector 11, first is sliding
Dynamic bearing 19, second sliding axle are held 22 and are respectively arranged on the first optical fiber slip ring mounting plate 18, the second optical fiber slip ring mounting plate 21,
And it is fixed with first bearing seat 20, second bearing seat 23 respectively；First metal induction plate 24 and the second metal induction plate 25
It is symmetrically arranged on optical electric-field sensing head 10, senses the metal layer of crystal upper and lower surface evaporation by conducting wire 31 and electric light respectively
It is connected；First gear 26 is arranged on optical electric-field sensing head 10, and second gear 27 is arranged on motor iron-core 30, the first tooth
Wheel 26 is connected between second gear 27 with driving belt 29；Reflecting piece 33 is arranged on the second optical fiber slip ring mounting plate 21, right
Location arrangements photoelectric sensor 9 is answered, is respectively connected to signal processing system 15 with rotary optical electric-field sensor, it is described
Signal processing system 15 includes sequentially connected analog signal data acquisition system 12, filter unit 13, voltage signal processing list
Member 14, for measuring the revolving speed of optical electric field sensor, and passes the signal to signal processing system 15.
First metal induction plate 24 and the second metal induction plate 25 are spherical cylinder electrode, when rotary optical electricity
When field sensor is placed in electric field to be measured, electric-field strength to be measured is incuded by the first metal induction plate 24 and the second metal induction plate 25
Degree is applied to electric light by conducting wire and senses 6 both ends of crystal.
A kind of rotary optical electric-field sensor, including laser diode drive 1, laser diode 2, sensor housing
38 and photodetector 11, laser diode drive 1 be connected with laser diode 2, the laser diode 2 passes through input light
Fibre 39 is connected with photoelectricity slip ring 35, is connected by output optical fibre 40 with photodetector 11；It is wrapped inside the sensor housing 38
Include sequentially connected photoelectricity slip ring 35, optical electric-field sensing head 10, motor 28 and photoelectric sensor 9, wherein light
Learning electric field sensing head 10 includes the first collimator 3 being successively encapsulated in the sensing casing being made of insulating material, the polarizer
4, quarter-wave plate 5, electric light sense crystal 6, analyzer 7, the second collimator 8；It is sliding that the photoelectricity slip ring 35 is arranged in photoelectricity
On ring mounting plate 36, first sliding axle is set on photoelectricity slip ring mounting plate 36 and holds 19, and photoelectricity slip ring mounting plate 36 is fixed
In the upper end of optical electric-field sensing head 10, the lower end of optical electric-field sensing head 10 passes through motor mounting plate 34 and 28 phase of motor
Even, and on motor mounting plate 34 arrange that second sliding axle holds 22；First sliding axle holds 19, second sliding axle and holds 22 along sensing
38 axis of device shell arrangement, and be fixed on sensor housing 38；Metal induction plate 37 is wired to ground electrode
The metal layer of electric light sensing 6 upper and lower surface of crystal evaporation in optical electric-field sensing head 10；Reflecting piece 33 is arranged in motor iron
On core 30, photoelectric sensor 9 is arranged in corresponding position, is respectively connected to signal processing system 15 with photodetector 11,
The signal processing system 15 includes sequentially connected analog signal data acquisition system 12, filter unit 13, at voltage signal
Unit 14 is managed, for measuring the revolving speed of optical electric field sensor, and passes the signal to signal processing system 15.
The metal induction plate 37 is round plate electrode, when rotary optical electric-field sensor is placed in electric field to be measured
When, electric field strength to be measured is incuded by metal induction plate 37, electric light is applied to by conducting wire 31 and senses 6 both ends of crystal.
The utility model has the beneficial effects that:
1, the utility model, by the revolving mechanical structure of sensing head, exports sensor when measuring DC electric field
As a result it is effectively mentioned comprising DC component and AC compounent using AC compounent divided by the signal processing of DC component simultaneously in
The measurement accuracy of high sensor.
2, the utility model can eliminate charge shift to the shadow of measurement accuracy by the revolving mechanical structure of sensing head
It rings, influence of the factors such as light-intensity variation, temperature change to sensor longtime running stability can be eliminated.
3, the utility model uses the direct induction field of metal induction plate, it can be achieved that the contactless of electric field and voltage
Measurement, solves the Insulation Problems of measuring device.
4, the optical electric field sensor in the utility model increases the work of electromagnetic shielding by setting sensor housing
With, by free surrounding space charge interfere it is smaller.
5, the utility model proposes sensor be monochromatic light line structure, reduce sensor bulk, simplify manufacture craft,
More conducively produce in batches.
6, the signal processing system in the utility model by filtering and AC and DC component separation, substantially eliminate by
The noise for surveying the noise and photodetector in voltage signal, improves the accuracy of measurement.
Detailed description of the invention
Attached drawing 1 is rotary optical electric-field sensor and its signal processing apparatus schematic diagram；
Attached drawing 2 is the rotary optical electric-field sensor and its signal processing apparatus schematic diagram of the first structure；
Attached drawing 3 is the rotary optical electric-field sensor and its signal processing apparatus schematic diagram of second of structure；
Appended drawing reference: 1- laser diode drive；2- laser diode；3- first collimator；The 4- polarizer；
5- quarter-wave plate；6- electric light senses crystal；7- analyzer；The second collimator of 8-；9- photoelectric sensor；
10- optical electric-field sensing head；11- photodetector；12- analog signal data acquisition system；13- filter unit；14-
Voltage signal processing unit；15- signal processing system；The first optical fiber slip ring of 16-；The second optical fiber slip ring of 17-；18- first
Optical fiber slip ring mounting plate；19- first sliding axle is held；20- first bearing seat；21- the second optical fiber slip ring mounting plate；22-
Two sliding bearings；23- second bearing seat；24- the first metal induction plate；25- the second metal induction plate；26- first
Gear；27- second gear；28- motor；29- driving belt；30- motor iron-core；31- conducting wire；32- optics electricity
Field sensor-based system；33- reflecting piece；34- motor mounting plate；35- photoelectricity slip ring；36- photoelectricity slip ring mounting plate；37- metal
Induction electrode；38- sensor housing；39- input optical fibre；40- output optical fibre；
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Attached drawing 1 is rotary optical electric-field sensor and its signal processing apparatus schematic diagram, as shown in Figure 1, including along light
The sequentially connected laser diode drive 1 of road transmission direction, laser diode 2, optical electric-field sensing head 10, photodetector
11；Wherein, optical electric-field sensing head 10 includes the first collimation being successively encapsulated in the sensing casing being made of insulating material
Device 3, the polarizer 4, quarter-wave plate 5, electric light sense crystal 6, analyzer 7, the second collimator 8；Photoelectric sensor 9 is put
It is placed in one end of optical electric-field sensing head 10, is respectively connected to signal processing system with the rotary optical electric-field sensor
15, the signal processing system 15 includes sequentially connected analog signal data acquisition system 12, filter unit 13, voltage signal
Processing unit 14.
The rotary optical electric-field sensor incudes electric field strength to be measured by metal induction plate, and applies it to
Electric light senses on the metal layer of 6 two sides of crystal evaporation；Laser diode drive 1 is with constant current or constant power-mode work
Make, for driving laser diode 2 to export the direct current light intensity of high stable, after optical electric-field sensing head 10 of the optical signal by rotation
Reach photodetector 11；Photodetector 11 is sent to signal processing system 15 after the optical signal of input is converted to electric signal；
Photoelectric sensor 9 measures the revolving speed of rotary sensing head 10 by principle of reflection, and will be at the signal input signal of measurement
Reason system 15.Wherein, optical electric-field sensing head 10 is placed in the plane vertical with direction of an electric field to be measured, and sensing head 10 is electronic
Under the drive of machine 28, rotated by rotary shaft of optic path direction.The sensing principle of the sensor is as described below:
Sensor incudes electric field strength to be measured by metal induction plate, applies it in optical electric-field sensing head 10
Electric light senses on the metal layer of 6 two sides of crystal evaporation；Laser diode drive 1 is with the mode work of constant current or firm power
Make, driving laser diode 2 issues the direct current light intensity of high stable, reaches photoelectricity after the optical electric-field sensing head 10 by rotation and visits
Survey device 11；Photoelectric sensor 9 measures the speed of optical electric-field sensing head, and output signal is transported to signal processing
System 15.
Attached drawing 2 is the rotary optical electric-field sensor and its signal processing apparatus schematic diagram of the first structure, such as Fig. 2 institute
Show, including laser diode drive 1, laser diode 2, the first optical fiber slip ring 16, the first optical fiber slip ring mounting plate 18, first
Sliding bearing 19, first bearing seat 20, optical electric-field sensing head 10, the second optical fiber slip ring 17, the second optical fiber slip ring mounting plate 21,
Second sliding axle hold 22, second bearing seat 23, the first metal induction plate 24, the second metal induction plate 25, first gear 26,
Second gear 27, motor 28, driving belt 29, reflecting piece 33, photoelectric sensor 9, photodetector 11.The sensor
Mechanical structure portion can be divided into rotatable parts, stationary parts, connecting component；Wherein, rotatable parts are pacified including the first optical fiber slip ring
Loading board 18, optical electric-field sensing head 10, the second optical fiber slip ring mounting plate 21, first gear 26, second gear 27, driving belt
29；Stationary part includes first bearing seat 19, second bearing seat 23, motor 28, connecting component include the first optical fiber slip ring 16,
Second optical fiber slip ring 17, first sliding axle hold 19, second sliding axle and hold 22；Wherein, the first optical fiber slip ring 16 is mounted on the first light
Fine slip ring mounting plate 18 is arranged in 10 input terminal of sensing head, and the second optical fiber slip ring 17 is mounted on the second optical fiber slip ring mounting plate 21,
It is arranged in 10 output end of sensing head；First sliding axle hold 19, second sliding axle hold 22 be respectively arranged in the first optical fiber slip ring install
On plate 18, the second optical fiber slip ring mounting plate 21, and it is fixed with first bearing seat 19, second bearing seat 23；First gear 26 is arranged
In on optical electric-field sensing head 10, second gear 27 is arranged on motor iron-core 30, between first gear 26 and second gear 27
It is connected with driving belt 29；Reflecting piece 33 is arranged on the second optical fiber slip ring mounting plate 21, arranges photoelectric whirl in corresponding position
Sensor 9 for measuring the revolving speed of optical electric field sensor, and passes the signal to signal processing system 15.The sensor
First metal induction plate 24 and the second metal induction plate 25 are symmetrically arranged on optical electric-field sensing head 10, are led to respectively
Conducting wire 31 is crossed to be connected with the metal layer of electric light sensing crystal upper and lower surface evaporation；When rotary optical electric-field sensor be placed in it is to be measured
When electric field, electric field strength to be measured is incuded by metal induction plate, electric light is applied to by conducting wire 31 and senses crystal both ends.
Attached drawing 3 is the rotary optical electric-field sensor and its signal processing apparatus schematic diagram of second of structure, such as Fig. 3 institute
Show, including laser diode drive 1, band tail optical fiber laser diode 2, optical electric-field sensing head 10, photoelectricity slip ring 35, motor
28, motor mounting plate 34, first sliding axle hold 19, photoelectricity slip ring mounting plate 36, second sliding axle holds 22, photodetector 11,
Reflecting piece 33, photoelectric sensor 9, sensor housing 38, metal induction plate 37.The sensor mechanical structure part can be divided
For rotatable parts, stationary parts, connecting component.Rotatable parts include: optical electric-field sensing head 10, photoelectricity slip ring mounting plate 36,
Motor mounting plate 34；Stationary parts includes: sensor housing 38, motor 28；Connecting component is the sliding of photoelectricity slip ring 35, first
Bearing 19, second sliding axle hold 22；Laser diode drive 1 is connected with laser diode 2, and the laser diode 2 passes through
Input optical fibre 39 is connected with photoelectricity slip ring 35, is connected by output optical fibre 40 with photodetector 11；The sensor housing 38
Inside includes sequentially connected photoelectricity slip ring 35, optical electric-field sensing head 10, motor 28 and photoelectric sensor 9,
In, optical electric-field sensing head 10 includes the first collimator 3 being successively encapsulated in the sensing casing being made of insulating material, rises
Inclined device 4, quarter-wave plate 5, electric light sense crystal 6, analyzer 7, the second collimator 8, and the photoelectricity slip ring 35 is arranged in light
On electric slip ring mounting plate 36, the connection between the same electricity rotated of static electricity, optical signal, optical signal can be achieved at the same time；In photoelectricity
First sliding axle is set on slip ring mounting plate 36 and holds 19, and photoelectricity slip ring mounting plate 36 is fixed on optical electric-field sensing head 10
The lower end of upper end, optical electric-field sensing head 10 is connected by motor mounting plate 34 with motor 28, and on motor mounting plate 34
Arrangement second sliding axle holds 22；First sliding axle holds 19, second sliding axle and holds 22 along 38 axis of sensor housing arrangement, and admittedly
It is scheduled on sensor housing 38；Metal induction plate 37 and ground electrode are wired to the electricity in optical electric-field sensing head 10
The metal layer of 6 upper and lower surface of light sensing crystal evaporation；Reflecting piece 33 is arranged on motor iron-core 30, arranges light in corresponding position
Electric speed probe 9 is respectively connected to signal processing system 15 with photodetector 11, the signal processing system 15 include according to
Analog signal data acquisition system 12, filter unit 13, the voltage signal processing unit 14 of secondary connection, for measuring optical electric-field
The revolving speed of sensor, and pass the signal to signal processing system 15.The metal induction plate 37 is round plate electrode, when
When rotary optical electric-field sensor is placed in electric field to be measured, electric field strength to be measured is incuded by metal induction plate 37, passes through conducting wire
31 are applied to electric light sensing 6 both ends of crystal.
The optical electric field sensor sensing principle having the same of above-mentioned three kinds of structures, can be revolving by sensing head
Direct current signal to be measured is become AC signal output, eliminates the factors pair such as light intensity, temperature by signal handler by mechanical structure
The influence of sensor stability can effectively eliminate influence of the charge shift to sensor accuracy class.
This embodiment is only the preferable specific embodiment of the utility model, but the protection scope of the utility model not office
It is limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with
Subject to scope of protection of the claims.
Claims (6)
1. a kind of rotary optical electric-field sensor, which is characterized in that including along the sequentially connected laser two in optic path direction
Pole pipe driver (1), laser diode (2), optical electric-field sensing head (10), photodetector (11)；Wherein, optical electric-field passes
Sense head (10) include successively be encapsulated in be made of insulating material sensing casing in first collimator (3), the polarizer (4),
Quarter-wave plate (5), electric light sense crystal (6), analyzer (7), the second collimator (8)；Photoelectric sensor (9) is placed
In one end of optical electric-field sensing head (10), signal processing system is respectively connected to the rotary optical electric-field sensor
(15), the signal processing system (15) include sequentially connected analog signal data acquisition system (12), filter unit (13),
Voltage signal processing unit (14)；
The rotary optical electric-field sensor incudes electric field strength to be measured by metal induction plate, and applies it to electric light
On the metal layer for sensing the evaporation of crystal (6) two sides；Laser diode drive (1) is with constant current or constant power-mode work
Make, for driving the direct current light intensity of laser diode (2) output high stable, optical electric-field sensing head of the optical signal by rotation
(10) photodetector (11) are reached afterwards；Photodetector (11) is sent at signal after the optical signal of input is converted to electric signal
Reason system (15)；Photoelectric sensor (9) measures the revolving speed of rotary sensing head (10) by principle of reflection, and by measurement
Signal input signal processing system (15).
2. a kind of rotary optical electric-field sensor according to claim 1, it is characterised in that: the optical electric-field sensing
Head (10) is placed in the plane vertical with direction of an electric field to be measured, and sensing head (10) is under the drive of motor (28), with optical path
Transmission direction is rotary shaft rotation.
3. a kind of rotary optical electric-field sensor, which is characterized in that including along the sequentially connected laser two in optic path direction
Pole pipe driver (1), laser diode (2), optical electric-field sensor-based system (32), photodetector (11), the optical electric-field
Sensor-based system (32) includes sequentially connected first optical fiber slip ring (16), optical electric-field sensing head (10), the second optical fiber slip ring
(17) and photoelectric sensor (9) and motor (28), wherein optical electric-field sensing head (10) includes successively being encapsulated in
The first collimator (3) in sensing casing, the polarizer (4), quarter-wave plate (5), the electric light being made of insulating material pass
Feel crystal (6), analyzer (7), the second collimator (8)；First optical fiber slip ring (16) is mounted on the installation of the first optical fiber slip ring
On plate (18), it is arranged in the input terminal of sensing head (10), the static optical signal transmission for issuing laser diode (2) to rotation
Sensing head, the second optical fiber slip ring (17) is mounted on the second optical fiber slip ring mounting plate (21), is arranged in the defeated of sensing head (10)
Outlet, the optical signal transmission for exporting rotation sensing head to static photodetector (11), first sliding axle hold (19), second
Sliding bearing (22) is respectively arranged on the first optical fiber slip ring mounting plate (18), the second optical fiber slip ring mounting plate (21), and respectively
It is fixed with first bearing seat (20), second bearing seat (23)；First metal induction plate (24) and the second metal induction plate
(25) it is symmetrically arranged on optical electric-field sensing head (10), the evaporation of crystal upper and lower surface is sensed by conducting wire (31) and electric light respectively
Metal layer be connected；First gear (26) is arranged on optical electric-field sensing head (10), and second gear (27) is arranged in motor
On iron core (30), it is connected between first gear (26) and second gear (27) with driving belt (29)；Reflecting piece (33) is arranged in
On two optical fiber slip ring mounting plates (21), photoelectric sensor (9) are arranged in corresponding position, with rotary optical electric-field sensor
It is respectively connected to signal processing system (15), the signal processing system (15) includes sequentially connected analog signal data acquisition
System (12), filter unit (13), voltage signal processing unit (14), for measuring the revolving speed of optical electric field sensor, and will
Signal is transmitted to signal processing system (15).
4. a kind of rotary optical electric-field sensor according to claim 3, which is characterized in that the first metal induction plate
(24) and the second metal induction plate (25) is spherical cylinder electrode, when rotary optical electric-field sensor is placed in electric field to be measured
When, electric field strength to be measured is incuded by the first metal induction plate (24) and the second metal induction plate (25), is applied by conducting wire
Crystal (6) both ends are sensed in electric light.
5. a kind of rotary optical electric-field sensor, which is characterized in that including laser diode drive (1), laser diode
(2), sensor housing (38) and photodetector (11), laser diode drive (1) are connected with laser diode (2), institute
It states laser diode (2) to be connected by input optical fibre (39) with photoelectricity slip ring (35), passes through output optical fibre (40) and photodetection
Device (11) is connected；It include sequentially connected photoelectricity slip ring (35), optical electric-field sensing head inside the sensor housing (38)
(10), motor (28) and photoelectric sensor (9), wherein optical electric-field sensing head (10) include successively be encapsulated in by
First collimator (3), the polarizer (4), quarter-wave plate (5) in sensing casing made of insulating materials, electric light sensing
Crystal (6), analyzer (7), the second collimator (8)；The photoelectricity slip ring (35) is arranged on photoelectricity slip ring mounting plate (36),
First sliding axle is arranged on photoelectricity slip ring mounting plate (36) to hold (19), and photoelectricity slip ring mounting plate (36) is fixed on optical electric-field
The lower end of the upper end of sensing head (10), optical electric-field sensing head (10) is connected by motor mounting plate (34) with motor (28),
And arrange that second sliding axle holds (22) on motor mounting plate (34)；It is equal that first sliding axle holds (19), second sliding axle holds (22)
It arranges, and is fixed on sensor housing (38) along sensor housing (38) axis；Metal induction plate (37) and ground electrode are logical
Cross the metal layer for electric light sensing crystal (6) the upper and lower surface evaporation that conducting wire is connected in optical electric-field sensing head (10)；Reflecting piece
(33) it is arranged on motor iron-core (30), photoelectric sensor (9) is arranged in corresponding position, with photodetector (11) point
It is not connected to signal processing system (15), the signal processing system (15) includes sequentially connected analog signal data acquisition system
System (12), filter unit (13), voltage signal processing unit (14), for measuring the revolving speed of optical electric field sensor, and will letter
Number it is transmitted to signal processing system (15).
6. a kind of rotary optical electric-field sensor according to claim 5, which is characterized in that the metal induction plate
(37) felt when rotary optical electric-field sensor is placed in electric field to be measured by metal induction plate (37) for round plate electrode
Electric field strength to be measured is answered, electric light is applied to by conducting wire (31) and senses crystal (6) both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605185.2U CN208188211U (en) | 2018-04-25 | 2018-04-25 | Rotary optical electric-field sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605185.2U CN208188211U (en) | 2018-04-25 | 2018-04-25 | Rotary optical electric-field sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208188211U true CN208188211U (en) | 2018-12-04 |
Family
ID=64435080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820605185.2U Expired - Fee Related CN208188211U (en) | 2018-04-25 | 2018-04-25 | Rotary optical electric-field sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN208188211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693413A (en) * | 2018-04-25 | 2018-10-23 | 华北电力大学 | Rotary optical electric-field sensor and its measurement electric field methods |
| CN109839545A (en) * | 2019-03-19 | 2019-06-04 | 浙江大学 | Rotary electric field sensor of optic fibre and rotary optical electric-field sensor measuring system |
-
2018
- 2018-04-25 CN CN201820605185.2U patent/CN208188211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693413A (en) * | 2018-04-25 | 2018-10-23 | 华北电力大学 | Rotary optical electric-field sensor and its measurement electric field methods |
| CN108693413B (en) * | 2018-04-25 | 2023-09-19 | 华北电力大学 | Rotary optical electric field sensor and electric field measuring method thereof |
| CN109839545A (en) * | 2019-03-19 | 2019-06-04 | 浙江大学 | Rotary electric field sensor of optic fibre and rotary optical electric-field sensor measuring system |
| CN109839545B (en) * | 2019-03-19 | 2021-07-20 | 浙江大学 | Rotary optical fiber electric field sensor and rotary optical electric field sensor measuring system |
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