CN107894536A - A kind of integrated power frequency electromagnet field sensor and on-Line Monitor Device - Google Patents
A kind of integrated power frequency electromagnet field sensor and on-Line Monitor Device Download PDFInfo
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- CN107894536A CN107894536A CN201711202172.7A CN201711202172A CN107894536A CN 107894536 A CN107894536 A CN 107894536A CN 201711202172 A CN201711202172 A CN 201711202172A CN 107894536 A CN107894536 A CN 107894536A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0878—Sensors; antennas; probes; detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a kind of integrated power frequency electromagnet field sensor and on-Line Monitor Device, including sensor cluster, integrated power frequency electromagnet field sensor is connected to field intensity meter main frame and the power frequency electromagnet field data of collection is conveyed into field intensity meter main frame, field intensity meter main frame is calculated and shown after receiving the data of integrated power frequency electromagnet field sensor and the collection of three-dimensional rf electric field sensor and result of calculation is input into central control computer, central control computer receives the result of calculation for the field intensity meter main frame for being arranged on various regions and shown by the LED giant-screens of control centre, realize that electromagnetic field is monitored on-line, present invention laser forms optical-electrical converter with silicon mating plate, with fiber optic conduction, reach the purpose of measurement sensor clean supply.Overcome metal object to bring interference to sensor measurement signal, avoid inductive spacing Electromagnetic Interference, ensure the accuracy of measurement data, device has carried out Industrial Moulding Design, good appearance.
Description
Technical field
The present invention relates to technical field of electric field measurement, specially a kind of integrated power frequency electromagnet field sensor and on-line monitoring dress
Put.
Background technology
With the development of economic construction and the progress of science and technology, China is in power equipment, communication network, vehicles etc.
Aspect all achieves gratifying achievements.The development of every field and the application of advanced electronic equipment, make the life of people quick just
Profit, people's material and cultural life is improved, also just need people to study and how to measure and protect the radiation of electromagnetic wave.
More than the electromagnetic field radiation of some strength, the dysfunction of the central nervous system of people can be caused and with sympathetic nerve
Vegetative dystonie based on tired anxiety, its clinical symptoms can behave as feeling dizzy, insomnia and dreamful sleep, tiredness, memory
Power decline, palpitaition, headache, have aches in the limbs, lose the appetite, alopecia, hidrosis etc., some of the staff there is also bradycardia, blood pressure
The symptoms such as decline, cardiac arrhythmia.Electromagnetic field is noiseless, unglazed, tasteless applied field, is not up to very strong degree, and people is to feel
Less than, so this harm has very strong " disguise ", often it is not perceived by people and payes attention to.In order to ensure people's body
Body health, country have formulated corresponding laws and regulations and national standard, and for electromagnetic radiation environment management, country has compared with system
Rule and standard, Wuhan Bihai Yuntian Technology Co., Ltd. have developed according to corresponding laws and regulations and national standard
Hand-held field strength meter (electromagnetic field radiation instrument) and electromagnetic field on-line monitoring system.The instrument and on-line monitoring system are developed into
Work(, the foundation of effectively science is provided for the law enforcement of the functional government departments such as environmental monitoring, safety supervision, prevention and cure of occupational disease, will
It is widely used in the departments such as industrial and mining enterprises, labour protection, prevention and cure of occupational disease, environmental monitoring.
At present, electromagnetic radiation is measured with Portable electromagnetic field measuring instrument.With the enhancing of people's environmental consciousness,
Society and the public understand more and more for living environment, radiation hazradial bundle, it is desirable to have a healthy living environment, for being related to
Facility to radiation hazradial bundle can be paid attention in again, and Environmental protects the attention of work, for transformer station, communication base station, has electricity
Near the large scale equipment of magnetic radiation, people need long-term real time on-line monitoring, are issued by giant-screen or public information platform
The information and national standard of the electromagnetic radiation of relevant range allow limit value, while and are sent to the function of environmental protection by network
Administrative department, monitoring management radiation event.The public is set more intuitively, correctly to recognize the facilities such as transformer station, communication base station attached
The size of near electromagnetic field radiation, avoid the psychology of the facility periphery public panic.
On-line monitoring system requirement Monitoring Data in monitoring process is accurate, can long-term work free of discontinuities.It is former portable
Formula electromagnetic field field intensity meter power frequency probe has internal battery, circuit board, by probe circuit plate, arranging batteries in a square hexahedron
It is interior, load onto orthogonal pole plate and coil block respectively on hexahedron, there is optical fiber output communication interface in pole plate side,
There is charging socket, be available for use of charging repeatedly, outside probe in addition to pole plate, coil are used to sense, without any metal
Wire, in the absence of the interference as caused by plain conductor.But it is unattended, people are during real time on-line monitoring
See the data result of large screen display, if work online sensor-use pond power supply, must have electricity be finished need to charge when
Wait, cause to be unable to long continuous operation, if connecting charger charging, power supply, plain conductor is with regard to the same inductive spacing of image antenna
Electromagnetic wave；If sensor does not have to battery powered, it is designed as external exchange and turns direct current supply, power line can have the problem of same,
It fact proved, this external plain conductor inductive spacing electromagnetic wave brings the mistake that interference causes measurement result to bring hundreds and thousands of times
Difference, and display data is unstable, there is also interference to circuit board for spatial electromagnetic ripple.How sensor powerup issue, electromagnetism are solved
Interference problem of the ripple to circuit boardIt is the problem to be solved in the present invention.Electromagnetic field measurementses sensor needs prolonged placement unobstructed
Spacious open space, sensor device need to stand the test exposed to the sun and rain, and device materials are corrosion-resistant, anti-aging；In order to
Ensure the measurement sensitivity of sensor, case material also needs the stop attenuation characteristic to electromagnetic wave the smaller the better！How to design
Emf sensor deviceThis is the job that electromagnetic field on-line monitoring must be resolved.
The content of the invention
It is an object of the invention to provide a kind of integrated power frequency electromagnet field sensor and on-Line Monitor Device, solves sensing
The power supply of device and problem is disturbed accordingly, the problems such as overcoming the reduction of sensitivity, ensure that on-line monitoring system electromagnetic field is supervised
Survey data are accurate, system long-term stable operation free of discontinuities.
Technical scheme：A kind of integrated power frequency electromagnet field sensor, including sensor cluster, on sensor cluster
Side sets sensor block, and the lower section installation bottom of sensor cluster, sensor block and bottom are engaged sensor cluster
Cover completely, the support tube in the connection of the lower section of bottom, the lower end of upper support tube connects lower support tube by middle connecting seat
Upper end, the lower end of lower support tube are connected to bottom support base, and bottom support base is securedly mounted on prefabricated stylobate, described prefabricated
Pre-buried cable is provided with base, pre-buried cable one end is connected to sensor cluster, the other end through upper support tube and lower support tube
Field intensity meter is connected to by optical fiber.
The sensor cluster is supported in sensor block by nylon support column, and the sensor block and bottom lead to
Nylon screw is crossed to link together.
By nylon Stud connection to the aluminium side's integrated package for being used as support frame, aluminium side integrates on the top of the nylon support column
Optic fibre switching circuit board is mounted by means of screws with block, optical fiber RX sockets and optical fiber TX are provided with optic fibre switching circuit board
Socket, optical fiber RX sockets connect fiber connector with optical fiber TX sockets, are fixedly mounted on aluminium side's integrated package by sunk screw
There is photocell, the photocell connects laser transmission fiber joint, and fiber connector and laser transmission fiber joint are all connected to
Pre-buried cable, in aluminium side, three adjacent faces of integrated package are provided with X to parallel plate electrode, Y-direction parallel plate electrode and Z-direction parallel plate electrode,
Coil block is installed, coil block is arranged on aluminium side's integrated package by nylon screw, X on aluminium side integrated package the other three face
Be attached to parallel plate electrode, Y-direction parallel plate electrode and Z-direction parallel plate electrode junction with insulating tape, the Z-direction parallel plate electrode with
Preceding barricade is installed between aluminium side's integrated package, pacified between the coil block corresponding with Z-direction parallel plate electrode and aluminium side's integrated package
Equipped with rear barricade, space is left between rear barricade and aluminium side's integrated package to place sensor circuit board.
Be lined with silica gel plate between the optic fibre switching circuit board and aluminium side's integrated package, in aluminium side integrated package and coil block it
Between be lined with nylon support tube.
The sensor circuit board is fixed on aluminium side's integrated package by short connection hexagon prism and the long cooperation for being coupled hexagon prism
On, rear barricade and short connection hexagon prism, the long hexagon prism that is coupled are locked by sunk screw in the outside of rear barricade.
Offered on aluminium side's integrated package for installing photronic photocell mounting hole, for installing coil block
Coil block mounting hole, it is connected with the socket that sensor circuit board connecting wire passes through for optical fiber RX sockets and optical fiber TX sockets
Wire guide, the wire via passed through for wire, the pole plate mounting hole for installing parallel plate electrode and for installing barricade
Barricade mounting hole.
The coil block includes line wheel, line wheel tighten it is close be wound with coil, be further opened with line in the outer of line wheel
Enclose wire crossed beam trunking；The lower end of the sensor block was provided with connecting hole around one week, in offering for one week with connecting for bottom
The corresponding screw in hole is connect, nylon screw is screwed into connecting hole so that sensor block and bottom connect into one through screw
Body, is additionally provided with the mounting groove for installing nylon support column on bottom and the support tube for being connected with upper support tube connects
Joint.
A kind of electromagnetic field on-Line Monitor Device, including above-described integrated power frequency electromagnet field sensor, integrate power frequency electric
Magnetic field sensor is connected to field intensity meter main frame and the power frequency electromagnet field data of collection is conveyed into field intensity meter main frame, field intensity meter main frame
Three-dimensional rf electric field sensor is also connected with to receive the data of three-dimensional rf electric field sensor collection, field intensity meter main frame receives collection
Calculated and shown after the data gathered into power frequency electromagnet field sensor and three-dimensional rf electric field sensor and by result of calculation
Central control computer is input to, central control computer receives the result of calculation for the field intensity meter main frame for being arranged on various regions and passes through control centre
LED giant-screens shown, realize electromagnetic field monitor on-line.
The integrated power frequency electromagnet field sensor is also connected with laser generator, and the laser generator will by pre-buried cable
Laser is transferred in sensor cluster to provide the energy to photocell.
The integrated power frequency electromagnet field sensor connects fiber connector and company by optical fiber RX sockets with optical fiber TX sockets
It is connected to pre-buried cable and realizes and is connected with field intensity meter main frame.
Compared with prior art, the beneficial effects of the invention are as follows：
Power frequency electromagnet field sensor laser forms optical-electrical converter with silicon mating plate, with fiber optic conduction, reaches measurement and passes
The purpose of sensor clean supply.Overcome metal object to bring interference to sensor measurement signal, avoid inductive spacing electromagnetic wave
Interference, ensure the accuracy of measurement data；Its sensor of the electromagnetic field on-Line Monitor Device of the present invention is integrated using integrated package
Each parts, it is compact-sized, the wiring of circuit is optimized, avoids the interference that wires cross is brought, improves sensor measurement
Stability and the degree of accuracy；Transducer arrangement configuration designs and parts selection, overcomes the inductive spacing caused by material
Electromagnetic Interference；Integrated three orthogonal search coils form three-dimensional power frequency magnetic field sensor, three it is orthogonal flat
Row pole plate forms three-dimensional power frequency electric field sensor in one so that sensor any direction is placed, and surveys electromagnetic field intensity total amount not
Become, and electric field, magnetic field three-dimensional measure simultaneously；Device has carried out Industrial Moulding Design, good appearance.
Brief description of the drawings
Fig. 1 is the integrated power frequency electromagnetic field sensor construction schematic diagram of the present invention；
Fig. 2 is inventive sensor component installation structure schematic diagram；
Fig. 3 is inventive sensor component front cross-sectional structural representation；
Fig. 4 is inventive sensor component side cross section structure diagram；
Fig. 5 is integrated block structure schematic diagram in aluminium side's of the present invention；
Fig. 6 is coil block structural representation of the present invention；
Fig. 7 is inventive sensor capping structure schematic diagram；
Fig. 8 is bottom cover structure schematic of the present invention；
Fig. 9 is on-Line Monitor Device structural schematic block diagram of the present invention.
In figure：1- sensor clusters, 2- sensor blocks, 3- bottoms, the upper support tubes of 4-, connecting seat among 5-, prop up under 6-
Stay tube, 7- bottoms support base, the prefabricated stylobates of 8-, the pre-buried cables of 9-, 10- nylon screws, 11- nylon support columns, 12- nylon spiral shells
Post, 13- aluminium sides integrated package, 14- screws, 15- optic fibre switching circuit boards, 16- optical fiber RX sockets, 17- optical fiber TX sockets, 18- light
Fine connector, 19- sunk screws, 20- photocells, 21- laser transmission fiber joints, 22-Y is to parallel plate electrode, and 23-X is to parallel
Pole plate, 24-Z is to parallel plate electrode, 25- coil blocks, 26- insulating tapes, 27- silica gel plates, barricade before 28-, is shielded after 29-
Plate, the short connection hexagon prisms of 30-, 31- length are coupled hexagon prism, 32- nylon support tubes, 33- sensor circuit boards, 130- photocells peace
Fill hole, 131- coil block mounting holes, 132- socket connecting wires hole, 133- wire vias, 134- pole plate mounting holes, 135- screens
Shield plate mounting hole, 200- connecting holes, 300- screws, 301- mounting grooves, 302- support pipe connectors, 250- line wheels, 251- coils,
252- winding wire crossed beam trunkings, 100- integrate power frequency electromagnet field sensor, 101- field intensity meter main frames, and 102- three-dimensionals rf electric field passes
Sensor, 103- central control computers, 104-LED giant-screens, 105- laser generators.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, a kind of integrated power frequency electromagnet field sensor, including sensor cluster 1, sensor cluster top are set
Sensor block 2, the lower section installation bottom 3 of sensor cluster 1, sensor block 2 and bottom 3 are engaged sensor cluster 1
Cover completely, the support tube 4 in the connection of the lower section of bottom 3, the lower end of upper support tube 4 connects lower support by middle connecting seat 5
The upper end of pipe 6, the lower end of lower support tube 6 are connected to bottom support base 7, and bottom support base 7 is securedly mounted on prefabricated stylobate 8,
Pre-buried cable 9 is provided with the prefabricated stylobate 8, pre-buried one end of cable 9 is connected to biography through upper support tube 4 and lower support tube 6
Sensor component 1, the other end is connected to field intensity meter by optical fiber.
The sensor cluster 1 is supported in sensor block 2 by nylon support column 11, the He of sensor block 2
Bottom 3 is linked together by nylon screw 10.
The top of the nylon support column 11 is connected to the aluminium side's integrated package 13 for being used as support frame, aluminium by nylon stud 12
Optic fibre switching circuit board 15 is installed with by screw 14 on square integrated package 13, optical fiber is provided with optic fibre switching circuit board 15
RX sockets 16 and optical fiber TX sockets 17, optical fiber RX sockets 16 and optical fiber TX sockets 17 connect fiber connector 18, are integrated in aluminium side
Photocell 20 is installed with by sunk screw 19 on block 13, the photocell 20 connects laser transmission fiber joint 21, light
Fine connector 18 and laser transmission fiber joint 21 are all connected to pre-buried cable 9, the three faces installation that integrated package 13 is adjacent in aluminium side
There is X to parallel plate electrode 23, Y-direction parallel plate electrode 22 and Z-direction parallel plate electrode 24, be provided with the other three face of aluminium side's integrated package 13
Coil block 25, coil block 25 are arranged on aluminium side's integrated package 13 by nylon screw 10, and X is parallel to parallel plate electrode 23, Y-direction
Pole plate 22 and the junction insulating tape 26 of Z-direction parallel plate electrode 24 are attached, the Z-direction parallel plate electrode 24 and aluminium side's integrated package
Barricade 28 before being provided between 13, pacifies between the coil block 25 and aluminium side's integrated package 13 corresponding with Z-direction parallel plate electrode 24
Equipped with rear barricade 29, space is left to place sensor circuit board 33 between rear barricade 29 and aluminium side's integrated package.
Silica gel plate 27 is lined between the optic fibre switching circuit board 15 and aluminium side's integrated package 13, integrated package 13 and line in aluminium side
Nylon support tube 32 is lined between coil assembly 25.
The sensor circuit board 33 is fixed on aluminium side by short connection hexagon prism 30 and the long cooperation for being coupled hexagon prism 31
On integrated package 13, rear barricade 29 and short connection hexagon prism 30, length are coupled by the outside of rear barricade 29 by sunk screw 19
Hexagon prism 31 is locked.
Offered on aluminium side's integrated package 13 for photocell 20 is installed photocell mounting hole 130, for hookup wire
The coil block mounting hole 131 of coil assembly 25, connect with sensor circuit board 33 for optical fiber RX sockets 16 and optical fiber TX sockets 17
The wire via 133 that connect socket connecting wire hole 132 that wire passes through, passes through for wire, the pole for installing parallel plate electrode
Plate mounting hole 134 and the barricade mounting hole 135 for installing barricade.
The coil block 25 includes line wheel 250, coil 251 is closely wound with line wheel 250, in line wheel 250
Outer is further opened with winding wire crossed beam trunking 252；The lower end of the sensor block 2 was provided with connecting hole 200 around one week,
One week of bottom 3 offers the screw 300 corresponding with connecting hole 200, and nylon screw 10 is screwed into connecting hole through screw 300
In 200 sensor block 2 and bottom 3 are linked into an integrated entity, are additionally provided with bottom 3 for installing nylon support column 11
Mounting groove 301 and the support pipe connector 302 for being connected with upper support tube 4.
A kind of electromagnetic field on-Line Monitor Device, including above-described integrated power frequency electromagnet field sensor 100, integrate power frequency
Emf sensor 100 is connected to field intensity meter main frame 101 and the power frequency electromagnet field data of collection is conveyed into field intensity meter main frame
101, field intensity meter main frame 101 is also connected with three-dimensional rf electric field sensor 102 and gathered to receive three-dimensional rf electric field sensor 102
Data, field intensity meter main frame 101 receives integrated power frequency electromagnet field sensor 100 and the collection of three-dimensional rf electric field sensor 102
Calculated and shown after data and result of calculation is input to central control computer 103, central control computer 103, which receives, to be arranged on respectively
The result of calculation of the field intensity meter main frame 101 on ground is simultaneously shown by the LED giant-screens 103 of control centre, realizes that electromagnetic field exists
Line monitors.
The integrated power frequency electromagnet field sensor 100 is also connected with laser generator 105, and the laser generator 105 passes through
Laser is transferred in sensor cluster 1 to provide the energy to photocell 20 by pre-buried cable 9.
The integrated power frequency electromagnet field sensor 100 connects optical fiber by optical fiber RX sockets 16 and optical fiber TX sockets 17 and connected
First 18 and it is connected to pre-buried cable 9 and realizes and be connected with field intensity meter main frame 101.
Aluminium side's integrated package 13 is used for each parts of integrated sensor in one, makes sensor construction compact, transfer wire
Wiring is rationally clean and tidy, and shield effectiveness is good, improves the overall performance of sensor.The forward and backward barricade of barricade point, installed in integrated package
Correspondence position, shielding chamber is formed, prevents the interference of spatial electromagnetic ripple.Sensor circuit board component is used for power frequency electric field, magnetic field
The collection of signal, is handled through single-chip data, output digit signals.There are 3 pieces of parallel plate electrodes to be arranged on the 3 of hexahedral integrated package
On individual orthogonal face, for sensing power-frequency electric field strength signal (EX/EY/EZ).
Material：Epoxy is two-sided to cover silverskin plate machining, chemical attack shaping.
The long 65mm-75mm of pole plate, wide 65mm-75mm, the spacing of two pole plates is 0.1mm-0.3mm,
3 angle points of inner surface are welded together with soldering when composition 3 is mutually perpendicular to face, 3 inner surfaces is formed current potential
Equipotential volume, i.e. common port, while play firm effect.
There are 3 coil blocks to be arranged on hexahedron 3 orthogonal faces relative with 3 parallel plate electrodes, for feeling
Answer power frequency magnetic field intensity signal (BX/BY/BZ).
Line wheel：Material is nylon, compressing by mould；
Coil：Linear diameter is 0.1~φ of φ 0.2mm copper core enamel-covered wire, and the number of turn is 220~280 circles.
Photocell produces 6.7~6.9V voltages, is 5V through mu balanced circuit voltage stabilizing, then pass through under constant laser intensity illumination
DC-DC is converted to 3.3V, supplies sensor circuit.
Nylon support column is used for the bottom of sensor cluster attachment means, be fiber-optical socket with bottom outlet at bottom have 40~
60mm height space, ensure that optical fiber has certain bending radius, prevent that optical fiber pack is dead.
Sensor block：For windproof, rain, Exposure to Sunlight, dirt, it is desirable to which wave is good, and material is polytetrafluoroethylene (PTFE).
Bottom：For connecting sensor block, sensor cluster is supported, connects trip bolt nylon screw, bottom connects
Support tube is connected, the two uses PVC glue stickings.
Upper support tube：For connecting bottom and middle connecting seat, junction PVC glue stickings, play a supportive role, Guan Zhongwei light
The passage of fine optical cable.
Middle connecting seat：For connecting upper and lower support tube, junction PVC glue stickings.
Lower support tube：For connecting lower support tube, bottom support bracket, junction PVC glue stickings, play a supportive role, Guan Zhong
For the passage of optical fiber cable.
Bottom support bracket：For connecting lower support tube, junction PVC glue stickings, serve it is stable it is anti-translate into, bottom with advance
Stylobate processed is connected with bolt fastener.
Prefabricated stylobate:For the bottom support bracket of install sensor device, play a part of firm, anti-flooding.Prefabricated stylobate
When, preheating embedding line and the pre-buried installation bolt in position by bottom support bracket mounting hole.
Material：Sand, stone, coagulating cement make.
Specification：Long 400~500mm, wide 400~500mm, high 300~400mm
Key component power frequency electromagnetic field measuring probe by three pairs of mutually orthogonal parallel plate electrodes, three pairs of mutually orthogonal coils,
Circuit board group prejudice figure power frequency probe assembly figure：
Power frequency electromagnetic field measuring principle
Power frequency magnetic field measurement forms three-dimensional power frequency magnetic field sensor group into working as spy by three orthogonal search coils
When test coil enters magnetic field, by measuring the induced electromotive force of search coil, corresponding magnetic induction intensity can be determined.Pass through three
Coil measures three road voltage signals of induced electromotive force, through variable connector, is respectively fed to amplifier processing, is converted into counting through A/D
Word signal, single-chip microcomputer calculating processing is sent into, result is sent into hand-held host SCM by optical fiber is handled, and send display to show X
Axle, Y-axis, component Bx, By, Bz and the B (three component square root sum squares) in three directions of Z axis.
Power frequency electric field measurement forms three-dimensional power frequency electric field sensor by three orthogonal parallel plate electrodes and formed.Work as spy
When survey parallel plate electrode enters electric field, the both end voltage of parallel plate electrode is detected by measuring, corresponding electric-field intensity can be determined.It is logical
Three road voltage signals of three orthogonal parallel plate electrode both end voltages are crossed, through variable connector, are respectively fed to amplifier processing,
Data signal is converted into through A/D, is sent into single-chip microcomputer calculating processing, result is sent into hand-held host SCM by optical fiber is handled,
Display is sent to show X-axis, Y-axis, component Ex, Ey, Ez and the E (three component square root sum squares) in three directions of Z axis.
The course of work
The electromagnetic field on-line monitoring system course of work：
1. power frequency electromagnetic field sensor probe is arranged on point position on request；
2. switching on power, laser is powered by optical fiber opto-electronic conversion to power frequency electromagnet field sensor, is at normal
Measuring state；
3. the electric signal that sensor measures send central control computer to handle through amplification, A/D conversions inside device；
4. send measurement result to large screen display in real time.
Manufacture, production technology
Each part is assembled by design drawing, technical papers processing, system engineering installation is carried out by technical requirements.
Calibration：Power frequency electromagnet field sensor is before loading system, respectively in Special instruments such as helmholtz coil, parallel plate electrodes
Calibrated in device equipment, reach range ability, accuracy requirement.
Debugging：After each instrument of system, part assemble, each signal path is debugged, whole system is reached measurement, signal biography
Defeated, display normal condition.
Technical essential and with like product difference
1. power frequency measuring probe laser forms optical-electrical converter with silicon mating plate, with fiber optic conduction, reach measurement sensing
The purpose of device clean supply.Overcome metal object to bring interference to sensor measurement signal, avoid inductive spacing electromagnetic wave from doing
Disturb, ensure the accuracy of measurement data.
2. material Selective artery embolization of popping one's head in：Probe material requirements has some strength, can be in the nature mal-condition such as expose to the sun and rain
Under use；Also to meet the detection requirement to signal simultaneously, if material is excessive to detectable signal decay, sensor can be caused
To signal detection less than the sensitivity of sensor will be reduced.By a large amount of selections it is demonstrated experimentally that polytetrafluoroethylmaterial material
Electromagnetic wave signal is decayed relatively small, while intensity and anti-aging requirement can be met.
3. sensor three-dimensional measures simultaneously.
4. the system is compared with similar products：The power supply of existing product sensor turns direct current using exchange and led by metal
Line is powered, and this is bound to by electromagnetic interference, and the processing method after interference is typically coefficient amendment, but strong in electromagnetic radiation
During degree change, in different radiation intensity sections, can not fixed coefficient amendment be used, there can be nonlinear problem, measurement result can be given
Bring very big error.And with photoelectricity conversion electric power, it just can effectively, truly measure the size of electromagnetic field radiation intensity.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
- A kind of 1. integrated power frequency electromagnet field sensor, it is characterised in that：Including sensor cluster, set and pass above sensor cluster Sensor block, the lower section installation bottom of sensor cluster, sensor block and bottom are engaged and cover sensor cluster completely, The support tube in the connection of the lower section of bottom, the lower end of upper support tube connect the upper end of lower support tube, lower branch by middle connecting seat The lower end of stay tube is connected to bottom support base, and bottom support base is securedly mounted on prefabricated stylobate, is set in the prefabricated stylobate There is pre-buried cable, pre-buried cable one end is connected to sensor cluster through upper support tube and lower support tube, and the other end passes through optical fiber It is connected to field intensity meter.
- 2. the integrated power frequency electromagnet field sensor according to right 1, it is characterised in that：The sensor cluster passes through nylon branch Dagger is supported in sensor block, and the sensor block and bottom are linked together by nylon screw.
- 3. the integrated power frequency electromagnet field sensor according to right 2, it is characterised in that：The top of the nylon support column passes through Nylon Stud connection is mounted by means of screws with optic fibre switching electricity to aluminium side's integrated package as support frame on aluminium side's integrated package Road plate, optical fiber RX sockets and optical fiber TX sockets is provided with optic fibre switching circuit board, optical fiber RX sockets connect with optical fiber TX sockets Fiber connector, photocell, the photocell connection laser transmission are installed with by sunk screw on aluminium side's integrated package Fibre-optical splice, fiber connector and laser transmission fiber joint are all connected to pre-buried cable, the three adjacent faces of integrated package in aluminium side X is installed to parallel plate electrode, Y-direction parallel plate electrode and Z-direction parallel plate electrode, coil is installed on aluminium side integrated package the other three face Component, coil block are arranged on aluminium side's integrated package by nylon screw, and X is parallel with Z-direction to parallel plate electrode, Y-direction parallel plate electrode Pole plate junction is attached with insulating tape, and preceding barricade is provided between the Z-direction parallel plate electrode and aluminium side's integrated package, with Rear barricade is installed between the corresponding coil block of Z-direction parallel plate electrode and aluminium side's integrated package, collected in rear barricade and aluminium side Space is left between blocking to place sensor circuit board.
- 4. the integrated power frequency electromagnet field sensor according to right 3, it is characterised in that：The optic fibre switching circuit board and aluminium side Silica gel plate is lined between integrated package, nylon support tube is lined between aluminium side's integrated package and coil block.
- 5. the integrated power frequency electromagnet field sensor according to right 3, it is characterised in that：The sensor circuit board passes through short Knot hexagon prism and the long cooperation for being coupled hexagon prism are fixed on aluminium side's integrated package, the outside of rear barricade by sunk screw will after Barricade and short connection hexagon prism, the long hexagon prism that is coupled are locked.
- 6. the integrated power frequency electromagnet field sensor according to right 3, it is characterised in that：Use is offered on aluminium side's integrated package In photronic photocell mounting hole, the coil block mounting hole for installing coil block are installed, for optical fiber RX sockets and Socket connecting wire hole that optical fiber TX sockets and sensor circuit board connecting wire pass through, the wire via passed through for wire, For installing the pole plate mounting hole of parallel plate electrode and barricade mounting hole for installing barricade.
- 7. the integrated power frequency electromagnet field sensor according to right 3, it is characterised in that：The coil block includes line wheel, Coil is closely wound with line wheel, winding wire crossed beam trunking is further opened with the outer of line wheel；Under the sensor block End was provided with connecting hole around one week, and in the screw corresponding with connecting hole that offer for one week of bottom, nylon screw passes through spiral shell Hole, which is screwed into connecting hole, make it that sensor block and bottom link into an integrated entity, and is additionally provided with bottom and is used to install nylon branch The mounting groove of dagger and the support pipe connector for being connected with upper support tube.
- A kind of 8. electromagnetic field on-Line Monitor Device, it is characterised in that：Including the integrated power frequency electric as described in claim 1-7 is any Magnetic field sensor, integrated power frequency electromagnet field sensor are connected to field intensity meter main frame and are conveyed to the power frequency electromagnet field data of collection Field intensity meter main frame, field intensity meter main frame are also connected with three-dimensional rf electric field sensor to receive three-dimensional rf electric field sensor collection Data, field intensity meter main frame are counted after receiving the data of integrated power frequency electromagnet field sensor and the collection of three-dimensional rf electric field sensor Calculate and show and result of calculation is input to central control computer, central control computer receives the meter for the field intensity meter main frame for being arranged on various regions Calculate result and shown by the LED giant-screens of control centre, realize that electromagnetic field is monitored on-line.
- 9. electromagnetic field on-Line Monitor Device according to claim 8, it is characterised in that：The integrated power frequency electromagnetic field sensing Device is also connected with laser generator, and laser is transferred in sensor cluster to light by the laser generator by pre-buried cable Battery provides the energy.
- 10. electromagnetic field on-Line Monitor Device according to claim 8, it is characterised in that：The integrated power frequency electromagnetic field passes Sensor connects fiber connector by optical fiber RX sockets and optical fiber TX sockets and is connected to pre-buried cable and realizes and field intensity meter main frame It is connected.
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| CN201711202172.7A CN107894536A (en) | 2017-11-27 | 2017-11-27 | A kind of integrated power frequency electromagnet field sensor and on-Line Monitor Device |
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| CN114839328A (en) * | 2022-07-04 | 2022-08-02 | 武汉碧海云天科技股份有限公司 | Indoor air environment quality on-line monitoring system and method |
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