CN207408495U - A kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument - Google Patents
A kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument Download PDFInfo
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- CN207408495U CN207408495U CN201721625643.0U CN201721625643U CN207408495U CN 207408495 U CN207408495 U CN 207408495U CN 201721625643 U CN201721625643 U CN 201721625643U CN 207408495 U CN207408495 U CN 207408495U
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Abstract
The utility model provides a kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument, including rf electric field measuring probe and integrated power frequency electromagnet Field probe, rf electric field measuring probe, which is inserted into measurement host, carries out high-frequency electric field measurement, integrated power frequency electromagnet Field probe is connected to measurement host by optical fiber and carries out power frequency electromagnet field measurement, the measurement such as power frequency electric field, power frequency magnetic field, rf electric field function is integrated into the portable device of an intelligence by the product, is filled the domestic gaps.Can measure simultaneously power frequency electric field, power frequency magnetic field X to, Y-direction, Z-direction, integrated value, measure the X of rf electric field to, Y-direction, Z-direction, integrated value etc., there are the characteristics such as intelligent, integrated, omni-directional.
Description
Technical field
The utility model is related to technical field of electric field measurement, are specially a kind of rf electric field measuring probe and portable intelligent
Comprehensive electromagnetic field measurement instrument.
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 people’s lives fast just
Profit not only increases people's material and cultural life, and new problem is also brought to us：How to measure and protect electromagnetic wave
Radiation.
Substantial amounts of electronic equipment also emits electromagnetic energy outward while normal operation, and other equipment may be generated not
Good influence, or even serious harm is caused, here it is electromagnetic interferences.In limited time, space and limited frequency resource item
Under part, since the quantity of electric/electronic device is growing day by day, the dense degree used is increasing, the seriousness of electromagnetic interference by
The common concern of people is arrived.Although the working frequency of modern electronic equipment has extended to light-wave band, the frequency being commonly used
Rate scope concentrates below 40GHz, and since frequency resource is limited, substantial amounts of different type electronic equipment has to reuse certain
A little frequency ranges, thus easily cause and interfere with each other to each other.Since electronic technology is to integrated, digitlization, densification and high speed
Direction rapidly develops, and transmitter and receiver sensitivity improves a lot, and interference level is not caused by electronic electric equipment
It is disconnected to improve.
Hyundai electronics, electrical equipment or system and electromagnetic environment equipment or are just as a pair of twin brothers loath to part from each other
System high-tech, the electromagnetic environment caused by it is more complicated, meanwhile, complicated electromagnetic environment again proposes equipment higher
It is required that.Electromagnetic interference is not limited only to electric/electronic device, and be related to natural disturbance source, nuclear electromagnetic pulse, static discharge,
To the ecological effect of human body, what information processing equipment electromagnetic leakage generated gives away secrets, and detects the electromagnetic radiation before earthquake for electromagnetic radiation
Before being shaken the problems such as forecast etc..
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, 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 " concealment ", often it is not perceived by people and payes attention to.In order to ensure people's body
Body health, the environment related with electromagnetic field harm and sanitary standard that China has promulgated have：Electromagnetic radiation protection provides
(GB8702-88), environmental electromagnetic wave sanitary standard (GB9175-88), Work places microwave radiation sanitary standard (GB10436-
89), Work places hyperfrequency radiation hygiene standard (GB10437-89) etc., country has formulated corresponding laws and regulations and country marks
Standard, for electromagnetic radiation environment management, there are the rule and standard compared with system in country.
At present, domestic field intensity meter manufacturer is seldom, and existing country's field intensity meter product function is more single, power frequency electric field
Cannot be measured simultaneously with power frequency magnetic field, frequency range is narrow, Power frequency field strength meter be only capable of measurement 50Hz electric field or magnetic field, sensitivity,
Accuracy is low, and high frequency Near region field strength instrument frequency range is 20MHz~200MH or 75MHz~800MHz, and measurement range is relatively narrow, most
Low detection limits are higher, about 3V/m, and accuracy is relatively low, are ± 3dB.In addition survey electric field, magnetic field instrument and sensor be it is separated,
Cannot three axis measure simultaneously, it is impossible to telemeasurement, anti-interference is poor, and instrument level is relatively low, it is difficult to meet safety supervision, occupation is defended
Raw, environment monitoring requirements of one's work.
Utility model content
The purpose of this utility model is to provide a kind of rf electric field measuring probes and portable intelligent comprehensive electromagnetic field to survey
Instrument is measured, which is integrated into the measurement such as power frequency electric field, power frequency magnetic field, rf electric field function the portable device of one intelligence,
It fills the domestic gaps.Can measure simultaneously power frequency electric field, power frequency magnetic field X to, Y-direction, Z-direction, integrated value, measure the X of rf electric field
To, Y-direction, Z-direction, integrated value etc., there are the characteristics such as intelligent, integrated, omni-directional.
The technical solution of the utility model：A kind of rf electric field measuring probe, including block and subiculum, the subiculum connection
One end of hollow loop bar, the other end of hollow loop bar are connected with connector, the end connection air plug of connector, are opened in the block
Equipped with card slot, subiculum offers installation cavity with block connecting pin, and the block is connected with subiculum so that card slot and installation cavity are formed
Convenient for placing the space of radio frequency sensor, the high resistant transmission line of the radio frequency sensor be mounted in the hollow channel of loop bar and
Signal wire is connected at connector, signal wire is connected with air plug so that the signal of radio frequency sensor acquisition is transmitted.
The lower end of the block is provided with sleeve, be provided in the upper end of subiculum with the matched casey portion of sleeve, pass through
Sleeve and casey portion cause block and subiculum to be completely embedded.
The lower end of the subiculum offers the connecting hole for facilitating and connecting hollow loop bar upper end.
The radio frequency sensor includes three secondary dipole antennas, and epoxy plate is set per the upper end of pair dipole antenna, described
The both sides of epoxy plate are respectively arranged with mounting groove and installation card convex, and three pieces of epoxy plates are connected to form three by mounting groove with installation card convex
Water chestnut column radio frequency sensor body is wound with adhesive tape in the upper end of radio frequency sensor body and ensures stable connection, the ring
Dipole on oxygen plate is installed, detector diode is connected between dipole, dipole is connected to signal wire by high resistant transmission line,
The lower section of the radio frequency sensor body sets rubber ring that the high resistant transmission harness of three secondary dipole antennas is facilitated peace into a branch of
In the hollow channel of loop bar.
The card slot opened in the block is three, and three card slots are connected into match with triangular prism shape radio frequency sensor body
Equilateral triangle, the cross section of the installation cavity is also equilateral triangle.
The connector is provided with sinistral external thread with hollow loop bar junction, and connector is provided with the right side with air plug junction
Medial rotation screw thread.
A kind of portable intelligent comprehensive electromagnetic field measurement instrument including above-described rf electric field measuring probe and integrates
Power frequency electromagnet Field probe, rf electric field measuring probe, which is inserted into measurement host, carries out high-frequency electric field measurement, integrates power frequency electromagnet
Field probe is connected to measurement host by optical fiber and carries out power frequency electromagnet field measurement, and the measurement host includes host shell, in master
The front of casing body is provided with liquid crystal display and operation button, is offered at the top of host shell and rf electric field is facilitated to measure
The radio frequency sensor socket of the air plug insertion of probe, circuit board is additionally provided in host shell, is equipped on the circuit board
It controls chip and connects mating peripheral circuit, lithium battery is installed to power to circuit board at the back side of host shell,
The electric field signal of rf electric field measuring probe measurement is transferred to circuit board by radio frequency sensor socket；The top of the host shell
Portion is further opened with power frequency sensor fiber TX sockets and power frequency sensor fiber RX sockets and is visited to receive integrated power frequency electromagnetic field
The electric field information of head acquisition is additionally provided with USB interface and indicator light with chip is controlled to be connected, main case at the top of host shell
The bottom of body is additionally provided with the charging interface for charging to lithium battery.
It is that the control chip installed on the circuit board is connected by liquid crystal display interface with liquid crystal display, by pressing
Bonded mouth is connected with operation button, is connected by optical communication interface with power frequency sensor fiber socket, on the circuit board also
Memory chip, clock chip and the power management chip being connected with control chip are installed.
The integrated power frequency electromagnet Field probe includes sensor module, and sensor module includes the X being mounted on fixed frame
It is gone back to coil, Y-direction coil and Z-direction coil and X to pole plate, Y-direction pole plate and Z-direction pole plate, the fixed frame and X between pole plate
Sensor charging socket, power switch and fiber-optical socket are installed, be provided in fixed frame with sensor charging socket and
The socket adapter that fiber-optical socket is connected is also equipped with sensor circuit board, cell connector and sensor electricity in fixed frame
Pond, sensor circuit board connect X by single contact pin to coil, Y-direction coil, Z-direction coil, X to pole plate, Y with single Plug pin patch bay
To pole plate, Z-direction pole plate and socket adapter and cell connector, cell connector is connected with sensor battery to sensing
Device circuit board is powered.
In the cover body that the sensor module is mounted on cap and bottom cover is formed, the lower section connection nylon connection of bottom cover
Bar, connects wooden extension tripod below nylon connecting rod, insertion optical fiber in the fiber-optical socket of sensor module, optical fiber it is another
It holds through the wire casing opened up on bottom cover and is connected to measurement host.
The block of rf electric field measuring probe and subiculum use foamed polystyrene agent mold injection-compression molding；The main case
Body uses the hard aluminium alloy with ELECTROMAGNETIC RADIATION SHIELDING to be process.
Compared with prior art, the beneficial effects of the utility model are：Function is integrated, by power frequency electric field, power frequency magnetic field,
The measurement such as rf electric field function is integrated into the portable device of an intelligence, fills the domestic gaps.Can measure simultaneously power frequency electric field,
The X of power frequency magnetic field to, Y-direction, Z-direction, integrated value, measure the X of rf electric field to, Y-direction, Z-direction, integrated value etc., there is intelligent, collection
The characteristics such as Cheng Hua, omni-directional；In terms of structural manufacturing process, using shield technology, i.e. host machine casing inner wall employs the side of plating copper shield
Method greatly reduces the interference of external signal, to power frequency probe electrical appliance part using aluminium alloy bulk shielding, reduces the machine
Concussion, the influence to measurement accuracy.Power frequency electric field and magnetic field sensor are integrated on a probe, and are realized and passed by optical fiber cable
Sensor and main-machine communication, by the signal transmission of detection to host, radio-frequency probe passes to host by connector (air plug).This reality
With the electromagnetic field detection instrument of the new detection for being a kind of three axis phase (omnidirectional) of composite type (wide-band), testing staff is not required to exist
The maximum practical amount of electromagnetic field is looked in environment, and the utility model integrates the detection of power frequency electric field, power frequency magnetic field, rf electric field
It has arrived on all-in-one machine while has accomplished power frequency electromagnetic field simultaneous display, substantially increased the reliability of data, improve detection
Efficiency.The utility model use the lithium battery of large capacity for the work of complete machine improve electric energy and it is used be all efficiently low
The high electronic component of power consumption stability and reliability, when continuous firing 72 is small.
Description of the drawings
Fig. 1 uses structure diagram for the utility model；
Fig. 2 is the utility model rf electric field measuring probe overall structure diagram；
Fig. 3 is the utility model rf electric field measuring probe capping structure schematic diagram；
Fig. 4 is the A-A of Fig. 3 to structure diagram；
Fig. 5 is the utility model rf electric field measuring probe subiculum structure diagram；
Fig. 6 is the B-B direction structure diagram of Fig. 5；
Fig. 7 is the utility model rf electric field measuring probe dipole antenna configuration schematic diagram；
Fig. 8 is the utility model radio frequency sensor structure diagram；
Fig. 9 is the utility model radio frequency sensor overlooking the structure diagram；
Figure 10 is the utility model rf electric field measuring probe connector structure diagram；
Figure 11 is the utility model measurement host front view；
Figure 12 is the utility model measurement host rearview；
Figure 13 is the utility model measurement host plan view；
Figure 14 integrates power frequency electromagnetic field sonde configuration schematic diagram for the utility model；
Figure 15 is the utility model sensor module structure diagram one；
Figure 16 is the utility model sensor module structure diagram two；
Figure 17 is the utility model sensor module circuit-board connecting structure schematic diagram；
Figure 18 integrates power frequency electromagnetic field probe cover cap structure schematic diagram for the utility model；
Figure 19 integrates power frequency electromagnet Field probe bottom cover structure schematic for the utility model；
Figure 20 is the utility model measuring instrument overall structure block diagram；
Figure 21 is the utility model measuring instrument operation principle block diagram；
Figure 22 is the utility model measuring instrument measurement host operational flowchart.
In figure：1- rf electric field measuring probes, 2- measurement hosts, 2- integrate power frequency electromagnet Field probe, 10- blocks, under 11-
Support, 12- loop bars, 13- connectors, 14- air plugs, 15- card slots, 16- installation cavitys, 17- radio frequency sensors, 18- high resistant transmission lines,
19- signal wires, 20- circuit boards, 21- host shells, 22- liquid crystal displays, 23- operation buttons, 24- radio frequency sensor sockets,
25- sockets, 26-USB interfaces, 27- indicator lights, 28- lithium batteries, 30- sensor modules, 31- caps, 32- bottom covers, 33- nylon
Connecting rod, the wooden extension tripods of 34-, 35- optical fiber, 100- sleeves, 110- caseys portion, 111- connecting holes, the left-handed outer spiral shells of 130-
Line, 131- dextrorotation internal threads, 170- epoxy plates, 171- mounting grooves, 172- installation card convexs, 173- adhesive tapes, 174- dipoles,
175- detector diodes, 176- rubber rings, 300- fixed frames, 301-X is to coil, and 302-Y is to coil, and 303-Z is to coil, 304-
X is to pole plate, and 305-Y is to pole plate, and 306-Z is to pole plate, 307- sensor charging sockets, 308- power switches, 309- fiber-optical sockets,
310- socket adapters, 311- sensor circuit boards, 312- cell connectors, 313- sensor batteries.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, rf electric field measuring probe 1 is inserted into measurement host 2, integrated power frequency electromagnet Field probe 3 passes through
Optical fiber is connected to measurement host 2 and carries out power frequency electromagnet field measurement, and when measuring high-frequency electric field, rf electric field measuring probe 1 passes through boat
Docking host is inserted, space X, the free axial electric field strengths of Y, Z tri- can be detected simultaneously, rf electric field measuring probe has phase
Mutually three orthogonal antennas composition, sensor have highly sensitive wave detector to be transferred to signal by the special air plug plug-in unit of high frequency
Host, amplifier, microprocessor processes through host are shown, obtain high-frequency electric field intensity and the free axial height of X, Y, Z tri-
Frequency electric field strength.
Three-dimensional power frequency magnetic field sensor is formed by three orthogonal search coils, when search coil enters magnetic field,
By measuring the induced electromotive force of search coil, corresponding magnetic induction intensity can be determined.Induction electric is measured by three-winding
Tri- road voltage signals of Shi through variable connector, are respectively fed to amplifier processing, are converted into digital signal through A/D, are sent into microcontroller
Calculated, correction process, result be sent to by optical fiber after hand-held host is further processed, send display show X-axis, Y-axis,
The component B in three directions of Z axisx、By、BzWith B (three component square root sum squares) and corresponding frequency.
Three-dimensional power frequency electric field sensor is formed by three orthogonal parallel plate electrodes, by measuring detection parallel plate electrode
Both end voltage can determine corresponding electric field strength.Three road voltage signals of three orthogonal parallel plate electrode both end voltages,
Through variable connector, amplifier processing is respectively fed to, digital signal is converted into through A/D, microcontroller is sent into and is calculated, at correction
Result is sent to by optical fiber after hand-held host is further processed, display is sent to show X-axis, Y-axis, point in three directions of Z axis by reason
Measure Ex、Ey、EzWith E (three component square root sum squares) and corresponding frequency.
Referring to Fig. 2, the utility model provides a kind of technical solution：A kind of rf electric field measuring probe, including block 10
With subiculum 11, the subiculum 11 connects one end of hollow loop bar 12, and the other end of hollow loop bar 12 is connected with connector 13, connection
The end of body 13 connects air plug 14, and card slot 15 is offered in the block 10, and subiculum 11 offers installation cavity with block connecting pin
16, the block 10 and subiculum 11 connect and card slot 15 and installation cavity 16 are formed convenient for placing the space of radio frequency sensor 17,
The high resistant transmission line 18 of the radio frequency sensor 17 is mounted in the hollow channel of loop bar 12 and is being connected at connector 13
To signal wire 19, signal wire 19 is connected with air plug 14 so that the signal that radio frequency sensor 17 gathers is transmitted.
Fig. 3 to Fig. 6 is referred to, the lower end of the block 10 is provided with sleeve 100, is provided with and covers in the upper end of subiculum 11
100 matched casey portions 110 of cylinder, are completely embedded by sleeve 100 and 110 block 10 of casey portion and subiculum 11.
The lower end of the subiculum 11 offers the connecting hole 111 for facilitating and connecting hollow loop bar upper end.
The card slot 15 opened in the block 10 is three, and three card slots 15 connect into and triangular prism shape radio frequency sensor body
The equilateral triangle to match, the cross section of the installation cavity 16 is also equilateral triangle.
Fig. 7 to Fig. 9 is referred to, the radio frequency sensor 17 includes three secondary dipole antennas, per the upper of pair dipole antenna
End sets epoxy plate 170, and the both sides of the epoxy plate 170 are respectively arranged with mounting groove 171 and installation card convex 172, first piece of ring
The installation card convex 172 of oxygen plate is stuck in the mounting groove 171 of second piece of epoxy plate, and the installation card convex 172 of second piece of epoxy plate is stuck in
In the mounting groove 171 of 3rd piece of epoxy plate, the installation card convex 172 of the 3rd piece of epoxy plate is stuck in the mounting groove of first piece of epoxy plate
It in 171, is sequentially connected, three pieces of connections of epoxy plate 170 are formed triangular prism shape radio frequency sensing by mounting groove 171 and installation card convex 172
Device body is wound with adhesive tape 173 in the upper end of radio frequency sensor body and ensures stable connection, pacified on the epoxy plate 170
Equipped with dipole 174, detector diode 175 is connected between dipole, dipole 174 is connected to signal by high resistant transmission line 18
Line 19, dipole 174 and the angle of high resistant transmission line 18 are 54.7 °.The lower section of the radio frequency sensor body sets rubber ring
176 are easily installed in 18 beam of high resistant transmission line of three secondary dipole antennas in the hollow channel of loop bar 12 into a branch of.
Referring to Fig. 10, the connector 13 is provided with sinistral external thread 130, connector 13 with hollow 12 junction of loop bar
14 junction of air plug is provided with dextrorotation internal thread 131.
Please refer to Fig.1 1, Figure 12, Figure 13 and Figure 20, a kind of portable intelligent comprehensive electromagnetic field measurement instrument, including more than institute
The rf electric field measuring probe 1 and integrated power frequency electromagnet Field probe 3, rf electric field measuring probe 1 stated are inserted into measurement host 2
Interior progress high-frequency electric field measurement, integrated power frequency electromagnet Field probe 3 are connected to measurement host 2 by optical fiber and carry out power frequency electromagnetic field survey
Amount, the measurement host 2 include host shell 21, the front of host shell 21 are provided with liquid crystal display 22 and operation button
23, the radio frequency sensor socket that the air plug 14 of rf electric field measuring probe 1 is facilitated to be inserted into is offered at the top of host shell 21
24, circuit board 20 is additionally provided in host shell 21, control chip on the circuit board 20 is installed and connection is mating
Peripheral circuit is equipped with lithium battery 28 at the back side of host shell 21 to power to circuit board 20, rf electric field measuring probe 1
The electric field signal of measurement is transferred to circuit board 20 by radio frequency sensor socket 24；The top of the host shell 21 is further opened with
Power frequency sensor fiber TX sockets 25 and power frequency sensor fiber RX sockets 25 gather to receive integrated power frequency electromagnet Field probe 3
Electric field information, the top of host shell 21 is additionally provided with the USB interface 26 being connected with control chip and indicator light 27, main case
The bottom of body 21 is additionally provided with the charging interface for charging to lithium battery 28.
Figure 20 is referred to, the control chip installed on the circuit board 20 passes through liquid crystal display interface and liquid crystal display
Connection, be connected with operation button by keystroke interface, be connected by optical communication interface with power frequency sensor fiber socket, institute
State memory chip, clock chip and the power management chip for being also equipped with being connected on circuit board 20 with control chip.
4 to Figure 19 are please referred to Fig.1, the integrated power frequency electromagnet Field probe 3 includes sensor module 30, sensor module 30
Including being mounted on the X on fixed frame 300 to coil 301, Y-direction coil 302 and Z-direction coil 303 and X to pole plate 304, Y-direction pole
Plate 305 and Z-direction pole plate 306, the fixed frame 300 and X are also equipped with sensor charging socket 307, power supply between pole plate 304
Switch 308 and fiber-optical socket 309, are provided with and 309 phase of sensor charging socket 307 and fiber-optical socket in fixed frame 300
The socket adapter 310 of connection is also equipped with sensor circuit board 311, cell connector 312 and sensor in fixed frame 300
Battery 313, sensor circuit board 311 connect X by single contact pin to coil 301, Y-direction coil 302, Z-direction with single Plug pin patch bay
Coil 303, X are to pole plate 304, Y-direction pole plate 305, Z-direction pole plate 306 and socket adapter 310 and cell connector 312, battery
Connecting plate 312 is connected to power to sensor circuit board 311 with sensor battery 313.
In the cover body that the sensor module 30 is mounted on cap 31 and bottom cover 32 is formed, the lower section connection Buddhist nun of bottom cover 32
Imperial connecting rod 33,33 lower section of nylon connecting rod connect wooden extension tripod 34,309 interpolation of fiber-optical socket of sensor module 30
Enter optical fiber 35, the other end of optical fiber passes through the wire casing opened up on bottom cover 32 to be connected to measurement host 2.
The block 10 of rf electric field measuring probe 1 and subiculum 11 use foamed polystyrene agent mold injection-compression molding；It is described
Host shell 2 is process using the hard aluminium alloy with ELECTROMAGNETIC RADIATION SHIELDING.
Refer to Figure 21 and Figure 22, portable intelligent comprehensive electromagnetic field measurement instrument major function：
Instrument is manufactured and designed using state-of-the-art electronic technology, sensor technology, computer technology；
Instrument measures solid space X, Y, Z tri- the freely electric field of axial direction and magnetic field simultaneously；
Apparatus measures electric field, magnetic field are independent of each other；
Instrument is equipped with power frequency probe and each one of radio-frequency probe；Power frequency electromagnetic field or measurement radio frequency electromagnetic field are measured, it can be certainly
By replacement measuring probe, instrument has automatic identification, self-test probe sensor function, the automatic corresponding test parameter of display；
The epidemic disaster of measuring environment participates in compensating approach test result automatically, and Instrument measuring precision is high, scope is wide；
Instrument large screen display, beauty that interface is affine, both pictures and texts are excellent, human-computer dialogue, prompts operation, uses simplicity；
Measurement parameter unit user can be free, and dimension instrument automatically switches；
Measurement result can show with component modes, percentage pattern, characteristic value pattern, free switching；
Instrument band clock, electricity are shown, setting value auto-alarm function；
Instrument lithium battery power supply, battery capacity is big, instrument is low in energy consumption, longevity of service；
Instrument has measurement data storage function, can enquiry of historical data at any time；
Instrument integration degree is high, small, light-weight, easy to carry.
Instrument the key technical indexes is high-frequency electric field measurement range：1V/m-300V/m (10MHz~3GHz)；High-frequency electric field
Resolution ratio:0.001V/m (V/m grades)；0.001kV/m (kV/m grades).
Power frequency electric field measurement range：2V/m~50kV/m (20~2000Hz), [100Hz~10kHz is optional, 1kH~
100kHz is optional]；Power frequency electric field resolution ratio：0.001V/m；Power frequency magnetic field measurement range：0.1 μ T~1.5mT (20~
2000Hz), [100Hz~10kHz is optional, 1kH~100kHz is optional]；Power frequency magnetic field resolution ratio：0.001 μ T (T grades of μ)；
0.001mT (mT grades).
Electric field measurement accuracy:± 5%.
Magnetic-field measurement accuracy:± 5%.
The key technology of portable intelligent comprehensive electromagnetic field measurement instrument：
1) Electrode size, the design of the field coil number of turn and impedance matching circuit in power frequency electromagnet Field probe is integrated to set
Meter
Power frequency probe sensor：
Electric-field sensor:Three orthogonal each other parallel plate electrodes, pole plate are the rectangles of the length of side about 70x70cmm, spacing
0.7mm.Electric-field sensor material：Silverskin
Magnetic field sensor：Electromagnetic induction coil, wire circle：250, the interior diameter of enameled wire：0.11mm
2) rf electric field measuring probe frequency band Widening Technique and the design of high resistant line
The high-frequency electric field waveform that dipole antenna obtains is by becoming what we needed after HF schottky diode detection
High-frequency electric field signal.
3) multiple signals processing and acquisition technique
It is made up of channel selecting module and data acquisition module MAX350 and its peripheral circuit, the signal to detect carries
It is acquired for the correct transmission channel of stabilization, and by the data of transmission.
4) radio field intensity data processing technique
It is sampled from radio-frequency probe there are non-linear in different frequency, different field strength due to radio field intensity sensor
There is also larger non-linear for obtained data.In order to enable have preferable performance in gamut scope in instrument,
When being calibrated to radio-frequency probe intelligent algorithm will be used to realize automation curve fitting, with reference to manual intervention in special circumstances and
Adjustment, to eliminate the above-mentioned non-linear influence to instrument performance to greatest extent, it is ensured that instrument reaches default required precision.
5) selection of manufacture craft, material
High-frequency electric field and power frequency electromagnetic field pass measurement sensor：Investigate the manufacture craft and material of high-frequency electric field measurement sensor
Material is tested by the way that different materials is selected to make sensor, determines that the material minimum to signal attenuation makes sensor, to carry
High apparatus measures sensitivity.
The innovative point of portable intelligent comprehensive electromagnetic field measurement instrument：
1) function innovation：
The integrated function of the Project Product is function innovation point.
The measurement such as power frequency electric field, power frequency magnetic field, rf electric field function is integrated into the portable of intelligence and set by the product
It is standby, it fills the domestic gaps.Can measure simultaneously power frequency electric field, power frequency magnetic field X to, Y-direction, Z-direction, integrated value, measure rf electric field
X to, Y-direction, Z-direction, integrated value etc., there are the characteristics such as intelligent, integrated, omni-directional.
2) process innovation：
The shielding construction technique and testing and measuring technology of the Project Product are process innovation point.
In terms of structural manufacturing process, using shield technology, i.e., the method that host machine casing inner wall employs plating copper shield greatly subtracts
Lack the interference of external signal, to power frequency probe electrical appliance part using aluminium alloy bulk shielding, reduce the machine concussion, to measurement
The influence of precision.
In terms of the testing and measuring technology of the Project Product, calibration is to ensure the important procedure of product accuracy before dispatching from the factory.By outer
The sensing of the quasi- electromagnetic field signal of boundary mark receives, and measures corresponding power frequency electric field, power frequency magnetic field, high-frequency electric field signal, is established with this
The relation curve of electromagnetic field intensity and AC and DC signal, and this curve is stored in the data storage of microcontroller, make
Used time is read measuring signal by microcontroller data and calibrated automatically, provides reliability and the accuracy of measurement.
3) technological innovation：
1. sensor technology is innovated：
Power frequency electric field sensor technology：Using the circuit that the capacitance between parallel plate electrode and sample resistance are formed, from
And a voltage signal is obtained between pole plate.
Power frequency magnetic field sensor technology：According to Faraday's electromagnetic induction law Theoretical Design, induction coil, the coil is in magnetic
A voltage signal can be sensed in the environment of field.
Rf electric field sensor technology：Needs are detected by loading oscillator high resistant line parallel with being connect under crystal detector
Signal.
Power frequency electric field and magnetic field sensor are integrated on a probe, and realize that sensor and host lead to by optical fiber cable
Letter, by the signal transmission of detection to host, radio-frequency probe passes to host by connector (air plug).
2. frequency range is wide, three axial magnetic fields can be detected simultaneously, data simultaneous display.
The current domestic field strength measurement instrument using uniaxial frequency-selecting type, the measurement of power frequency, the measurement of radio frequency need to be with
Corresponding instrument of popping one's head in is used cooperatively and power frequency electric field, power frequency magnetic field will not be shown simultaneously, needs to measure people in detection process
Firstly the need of the frequency range detected in definite environment, secondly reselection is suitble to the probe or instrument that this frequency range detects to member, finally measures
Personnel need to rotate probe to obtain maximum electromagnetic field component, therefore by actually detected environment and the people of user of service in the environment
The reliability of measurement data may be influenced whether for the influence of factor, and the utility model is a kind of three axis of composite type (wide-band)
The electromagnetic field detection instrument of the detection of phase (omnidirectional) is not required testing staff to look for the maximum practical amount of electromagnetic field in the environment, and
The detection of power frequency electric field, power frequency magnetic field, rf electric field has been integrated on all-in-one machine while has accomplished power frequency electric by the utility model
Field synchronous is shown, substantially increases the reliability of data, improves the efficiency of detection.
3. power supply cruising ability is strong, the utility model uses the lithium battery of large capacity to improve electric energy for the work of complete machine
And used is all the high electronic component of efficient low-power consumption stability and reliability, when continuous firing 72 is small.
4. data processing, the utility model employs the algorithm that weighting is averaged in data processing software part, significantly
Improve measurement data authenticity and stability.
5. RF calibration technology, the utility model has obtained accurate calibration curve using matrix method processing initial data.
6. employing microprocessing makes the volume of equipment greatly reduce and the function of instrument is made to have obtained great increasing
By force.
7. it is more than threshold values warning function with measurement electric field, magnetic field.When electric field is more than setting value, field intentisy meter shows electric field
Alarm；When magnetic field is more than setting value, field intentisy meter shows magnetic field alarm.
8. field intentisy meter has the probe of connection automatic identification and its energy of self-test is carried out to each sensor of probe of identification
Power；
9. humidity has frequency field intensity sensor certain influence, this product uses humidity correction technique, and it is accurate to improve measurement
Degree.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of rf electric field measuring probe, it is characterised in that：Including block and subiculum, the subiculum connects the one of hollow loop bar
End, the other end of hollow loop bar are connected with connector, the end connection air plug of connector, and card slot is offered in the block, under
Support offers installation cavity with block connecting pin, and the block is connected with subiculum so that card slot and installation cavity form to place radio frequency
The space of sensor, the high resistant transmission line of the radio frequency sensor are mounted in the hollow channel of loop bar and at connector
Signal wire is connected to, signal wire is connected with air plug so that the signal of radio frequency sensor acquisition is transmitted.
2. rf electric field measuring probe according to claim 1, it is characterised in that：The lower end of the block is provided with set
Cylinder, be provided in the upper end of subiculum with the matched casey portion of sleeve, connected by sleeve with the block of casey portion with subiculum
Closely.
3. rf electric field measuring probe according to claim 2, it is characterised in that：The lower end of the subiculum offers conveniently
Connect the connecting hole of hollow loop bar upper end.
4. rf electric field measuring probe according to claim 1, it is characterised in that：It is secondary even that the radio frequency sensor includes three
Pole sub-antenna sets epoxy plate per the upper end of pair dipole antenna, and the both sides of the epoxy plate are respectively arranged with mounting groove and peace
It is loaded convex, three pieces of epoxy plates are connected to form triangular prism shape radio frequency sensor body by mounting groove with installation card convex, in radio frequency sensing
The upper end of device body is wound with adhesive tape ensures stable connection, is equipped with dipole on the epoxy plate, connects between dipole
Detector diode is connect, dipole is connected to signal wire by high resistant transmission line, and the lower section of the radio frequency sensor body sets rubber
The high resistant of three secondary dipole antennas is transmitted harness into a branch of hollow channel for being easily installed in loop bar by cushion rubber.
5. rf electric field measuring probe according to claim 4, it is characterised in that：The card slot opened in the block is three
Road, three card slots connect into the equilateral triangle to match with triangular prism shape radio frequency sensor body, the cross section of the installation cavity
Also it is equilateral triangle.
6. rf electric field measuring probe according to claim 1, it is characterised in that：The connector is connected with hollow loop bar
Place is provided with sinistral external thread, and connector is provided with dextrorotation internal thread with air plug junction.
7. a kind of portable intelligent comprehensive electromagnetic field measurement instrument, it is characterised in that：Including any radio frequencies of claim 1-6
Power frequency electromagnet Field probe is popped one's head in and integrated to electric field measurement, and rf electric field measuring probe, which is inserted into measurement host, carries out high-frequency electrical
Field measurement, integrated power frequency electromagnet Field probe are connected to measurement host by optical fiber and carry out power frequency electromagnet field measurement, the measurement master
Machine includes host shell, and the front of host shell is provided with liquid crystal display and operation button, is opened at the top of host shell
Equipped with the radio frequency sensor socket that the air plug of rf electric field measuring probe is facilitated to be inserted into, circuit is additionally provided in host shell
Plate is equipped with control chip and the mating peripheral circuit of connection on the circuit board, lithium is equipped at the back side of host shell
For battery to power to circuit board, the electric field signal of rf electric field measuring probe measurement is transferred to electricity by radio frequency sensor socket
Road plate；Be further opened at the top of the host shell power frequency sensor fiber TX sockets and power frequency sensor fiber RX sockets to
The electric field information of integrated power frequency electromagnet Field probe acquisition is received, is additionally provided with what is be connected with control chip at the top of host shell
USB interface and indicator light, the bottom of host shell are additionally provided with the charging interface for charging to lithium battery.
8. portable intelligent comprehensive electromagnetic field measurement instrument according to claim 7, it is characterised in that：Pacify on the circuit board
It is that the control chip of dress is connected by liquid crystal display interface with liquid crystal display, be connected by keystroke interface with operation button,
It is connected by optical communication interface with power frequency sensor fiber socket, is also equipped with what is be connected with control chip on the circuit board
Memory chip, clock chip and power management chip.
9. portable intelligent comprehensive electromagnetic field measurement instrument according to claim 7, it is characterised in that：The integrated power frequency electric
Magnet field probe includes sensor module, and sensor module includes the X being mounted on fixed frame to coil, Y-direction coil and Z-direction coil
And X is also equipped with sensor charging socket, electricity to pole plate, Y-direction pole plate and Z-direction pole plate, the fixed frame and X between pole plate
Source switch and fiber-optical socket are provided with the socket being connected with sensor charging socket and fiber-optical socket in fixed frame and turn
Fishplate bar is also equipped with sensor circuit board, cell connector and sensor battery in fixed frame, and sensor circuit board passes through single
Contact pin connects X with single Plug pin patch bay and turns to coil, Y-direction coil, Z-direction coil, X to pole plate, Y-direction pole plate, Z-direction pole plate and socket
Fishplate bar and cell connector, cell connector are connected to power to sensor circuit board with sensor battery.
10. portable intelligent comprehensive electromagnetic field measurement instrument according to claim 9, it is characterised in that：The sensor group
In the cover body that part is mounted on cap and bottom cover is formed, the lower section connection nylon connecting rod of bottom cover, the connection of nylon connecting rod lower section
Wooden extension tripod, the interior insertion optical fiber of fiber-optical socket of sensor module, the other end of optical fiber pass through the line opened up on bottom cover
Slot is connected to measurement host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625643.0U CN207408495U (en) | 2017-11-27 | 2017-11-27 | A kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625643.0U CN207408495U (en) | 2017-11-27 | 2017-11-27 | A kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument |
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| CN207408495U true CN207408495U (en) | 2018-05-25 |
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ID=62317171
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796992A (en) * | 2017-11-27 | 2018-03-13 | 武汉碧海云天科技股份有限公司 | A kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument |
| CN113009242A (en) * | 2021-02-25 | 2021-06-22 | 西安理工大学 | Device and method for measuring surface potential distribution and attenuation of array fluxgate |
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2017
- 2017-11-27 CN CN201721625643.0U patent/CN207408495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796992A (en) * | 2017-11-27 | 2018-03-13 | 武汉碧海云天科技股份有限公司 | A kind of rf electric field measuring probe and portable intelligent comprehensive electromagnetic field measurement instrument |
| CN113009242A (en) * | 2021-02-25 | 2021-06-22 | 西安理工大学 | Device and method for measuring surface potential distribution and attenuation of array fluxgate |
| CN113009242B (en) * | 2021-02-25 | 2022-10-04 | 西安理工大学 | Device and method for measuring surface potential distribution and attenuation of array fluxgate |
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