CN106896414B - A kind of passive type array magnetic induction antenna assembly - Google Patents
A kind of passive type array magnetic induction antenna assembly Download PDFInfo
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- CN106896414B CN106896414B CN201710062399.XA CN201710062399A CN106896414B CN 106896414 B CN106896414 B CN 106896414B CN 201710062399 A CN201710062399 A CN 201710062399A CN 106896414 B CN106896414 B CN 106896414B
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- 230000006698 induction Effects 0.000 title claims abstract description 23
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 39
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- 238000009826 distribution Methods 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 6
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- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- 230000000750 progressive effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 238000003491 array Methods 0.000 description 1
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- 238000004364 calculation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
- G01V3/165—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with magnetic or electric fields produced or modified by the object or by the detecting device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/12—Target-seeking control
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a kind of passive type array magnetic induction antenna assemblies, including substrate, driving circuit, voltage regulator circuit, resonance sample circuit and multiple magnetic induction subelements are provided on substrate, the multiple electromagnetic induction subelement array is uniformly arranged, then driving circuit includes the total driving circuit of row, the road M horizontal drive circuit, the road N column drive circuit and M*N AND gate circuit, and magnetic induction subelement and AND gate circuit correspond.The present invention is composed in series matrix array by the 10mH inductance of two omnidirectional distributions using each pair of coil, coil is weldingly fixed on substrate by two line ends, bottom plate is both the fixed plate of coil, the wiring convergence of each coil is connected on socket again, so as to be mounted on the front of unmanned plane, it whether there is by passive type array inductance coil real-time perception power transmission line, further perception aircraft provides distinguishing rule with respect to the range information and position angle information of power transmission line for follow-up signal processing circuit.
Description
Technical field
The present invention relates to electric system power transmission and distribution industry aircraft line walking automatic measurement technique field more particularly to a kind of quilts
Dynamic formula array magnetic induction antenna assembly.
Background technique
Currently, Utilities Electric Co. is to operations such as the maintenances, detection and repairing of transmission line of electricity, substantially still according to section partition
Task is patrolled situation to route by artificial scene and is checked.The timely and accurately property of line defct discovery, depends on line attendant
What professional ability, sense of responsibility and the supervision of shift management personnel were maked an inspection tour implements, and cannot prevent because making an inspection tour the various of initiation not in place
The generation of accident.Meanwhile some electric transmission line erections, in deep woods, wetland, alpine region, personnel reach slow, difficult, efficiency
It is low, it is impossible to accomplish that periodical inspection is safeguarded, inspection difficulty is bigger under the severe natural conditions such as ice and snow, earthquake, flood.
The main method for replacing artificial line walking at present is including the remote control inspection flight and autonomous using unmanned plane inspection operation
Avoidance tracks inspection two kinds of operation modes of flight, and two kinds of operation modes require aircraft and transmission line of electricity keeps reasonable distance
And relative position, convenient line trace, avoidance technology etc., and most important is that magnetic induction antenna how is arranged to carry nothing
It is man-machine that power delivery circuit is detected.Existing technology is unable to satisfy this requirement.
Summary of the invention
The object of the present invention is to provide a kind of passive type array magnetic induction antenna assemblies, can be realized to magnitude of field intensity
And the detection of distribution, high sensitivity, precision are high；
Further, unmanned vehicle can be met to identify route during line data-logging, position measurement, keep away
Barrier, the demand tracked.
The present invention adopts the following technical solutions：
A kind of passive type array magnetic induction antenna assembly, including substrate, be provided on substrate driving circuit, voltage regulator circuit,
Resonance sample circuit and multiple magnetic induction subelements, the multiple electromagnetic induction subelement array are uniformly arranged, and are denoted as M*N column square
Battle array, then driving circuit includes the total driving circuit of row, the road M horizontal drive circuit, the road N column drive circuit and M*N AND gate circuit, magnetic strength
Subelement and AND gate circuit is answered to correspond；The total driving circuit of the row, the road M horizontal drive circuit and the road N driving circuit are
NPN triode, the corresponding row NPN triode of electromagnetic induction subelement where every a line is driven, where each column
The corresponding column NPN triode of electromagnetic induction subelement is driven, and the total driving circuit of row is that a row always drives tri- pole NPN
Pipe；
The electromagnetic induction subelement includes that a pair of of inductance coil, the first low on-resistance switching tube and second low are led
Be powered resistance switching tube, and a pair of of inductance coil is composed in series by the inductance of two omnidirectional distributions, the pair of inductance coil
One end connect the second low on-resistance switching tube collector, the first low on-resistance switching tube emitter simultaneously connect second
The emitter of low on-resistance switching tube；
The emitter of any one second low on-resistance switching tube in same a line electromagnetic induction subelement with
The collector for corresponding row NPN triode of being expert at is connected；Wherein the emitter of M-1 row NPN triode always drives with row
The collector of NPN triode is connected, the transmitting of the total driving NPN triode of emitter and row of a remaining row NPN triode
Pole is connected, the emitter grounding connection of the total driving NPN triode of row, the M row NPN triode and the total driving NPN tri- of row
The base stage of pole pipe is driving circuit input terminal；
The emitter of any one first low on-resistance switching tube in same row electromagnetic induction subelement with
The emitter of column respective column NPN triode is connected, while from bottom to top, a pair of of inductance in the electromagnetic induction subelement of lower section
The other end of coil is connected with the emitter of the second low on-resistance switching tube in top electromagnetic induction subelement adjacent thereto,
The hair of the other end of a pair of of inductance coil and column respective column NPN triode in the electromagnetic induction subelement of same row the top
Emitter-base bandgap grading is connected；
The base stage of any one row NPN triode simultaneously be expert in the in any one electromagnetic induction subelement
The base stage of one low on-resistance switching tube be expert in the first input end of any one AND gate circuit be connected；It is described any
The base stage of one column NPN triode is connected with the second input terminal of any one AND gate circuit in column respectively, any one
The output end of a AND gate circuit is connected with the base stage of the second low on-resistance switching tube in corresponding electromagnetic induction subelement
It connects；
The collector of N number of column NPN triode be connected with each other after respectively with the output end of voltage regulator circuit and sample circuit
Input terminal be connected.
The resonance sample circuit includes that multiple capacitors and low-ohmic switches, wherein first capacitor one end and regulated power supply are defeated
Outlet is connected, and other end ground connection, remaining capacitor one end is also connected with output end of stabilized voltage supply, and the other end of remaining capacitor passes through low
Resistance switch ground connection.
The low-ohmic switches, using two-way Analog Switch with Low On-state Resistance device MAX4608.
Capacitor is monolithic capacitor in the resonance sample circuit.
The inductance coil uses helix tube inductance coil.
Further include having socket, the socket is arranged in the side of substrate, and each wiring of resonance sample circuit with insert
Seat is connected.
The present invention uses 100 pairs of inductance coils (each pair of coil is composed in series by the 10mH inductance of two omnidirectional distributions), group
At 10 × 10 matrix arrays, coil is weldingly fixed on bottom plate (i.e. substrate) by two line ends, and bottom plate is both the fixation of coil
Plate, and the wiring of each coil convergence is connected on socket, so as to be mounted on the front of unmanned plane, pass through passive type battle array
Column inductance coil real-time perception power transmission line whether there is, further to perceive range information of the aircraft with respect to power transmission line and position
Angle information provides distinguishing rule for follow-up signal processing circuit.The present invention carries unmanned plane being capable of automatic identification transmission line of electricity
Spatial position, and then navigation, tracking, the Airborne Tracking sensing device for controlling signal are provided for aircraft, to realize aircraft
Avoidance automatically tracks patrol flight function, has boundless market prospects.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention；
Fig. 2 is the local wiring schematic diagram of single electromagnetic induction subelement of the present invention；
Fig. 3 is resonance sample circuit of the present invention and schematic equivalent circuit.
Specific embodiment
As shown in Fig. 1,2 and Fig. 3, a kind of passive type array magnetic induction antenna assembly, including substrate is provided with drive on substrate
Dynamic circuit, voltage regulator circuit, resonance sample circuit and multiple magnetic induction subelements, the multiple electromagnetic induction subelement array are uniform
Setting, is denoted as M*N column matrix, then driving circuit includes the total driving circuit of row, the road M horizontal drive circuit, the road N column drive circuit and M*
N number of AND gate circuit, magnetic induction subelement and AND gate circuit correspond；The total driving circuit of the row, the road M horizontal drive circuit and
The road N driving circuit is NPN triode, and the corresponding row NPN triode of the electromagnetic induction subelement where every a line is driven
Dynamic, the corresponding column NPN triode of electromagnetic induction subelement where each column is driven, and the total driving circuit of row is a row
Total driving NPN triode；
The electromagnetic induction subelement includes that a pair of of inductance coil, the first low on-resistance switching tube and second low are led
Be powered resistance switching tube, and a pair of of inductance coil is composed in series by the inductance of two omnidirectional distributions, the pair of inductance coil
One end connect the second low on-resistance switching tube collector, the first low on-resistance switching tube emitter simultaneously connect second
The emitter of low on-resistance switching tube；The inductance coil uses helix tube inductance coil.
The emitter of any one second low on-resistance switching tube in same a line electromagnetic induction subelement with
The collector for corresponding row NPN triode of being expert at is connected；Wherein the emitter of M-1 row NPN triode always drives with row
The collector of NPN triode is connected, the transmitting of the total driving NPN triode of emitter and row of a remaining row NPN triode
Pole is connected, the emitter grounding connection of the total driving NPN triode of row, the M row NPN triode and the total driving NPN tri- of row
The base stage of pole pipe is driving circuit input terminal；
The emitter of any one first low on-resistance switching tube in same row electromagnetic induction subelement with
The emitter of column respective column NPN triode is connected, while from bottom to top, a pair of of inductance in the electromagnetic induction subelement of lower section
The other end of coil is connected with the emitter of the second low on-resistance switching tube in top electromagnetic induction subelement adjacent thereto,
The hair of the other end of a pair of of inductance coil and column respective column NPN triode in the electromagnetic induction subelement of same row the top
Emitter-base bandgap grading is connected；
The base stage of any one row NPN triode simultaneously be expert in the in any one electromagnetic induction subelement
The base stage of one low on-resistance switching tube be expert in the first input end of any one AND gate circuit be connected；It is described any
The base stage of one column NPN triode is connected with the second input terminal of any one AND gate circuit in column respectively, any one
The output end of a AND gate circuit is connected with the base stage of the second low on-resistance switching tube in corresponding electromagnetic induction subelement
It connects；
The collector of N number of column NPN triode be connected with each other after respectively with the output end of voltage regulator circuit and sample circuit
Input terminal be connected；The resonance sample circuit includes multiple capacitors and low-ohmic switches, wherein first one end and pressure stabilizing electricity
Source output terminal is connected, and other end ground connection, remaining capacitor one end is also connected with output end of stabilized voltage supply, and the other end of remaining capacitor is logical
Cross low-ohmic switches ground connection.Capacitor is monolithic capacitor in the resonance sample circuit.Resonance sample circuit is by controllably connecting
Multiple shunt capacitance compositions, different scanning collection operating modes, resonance samples the corresponding capacitance difference of equivalent capacity, with matching
Different resonance equivalent inductance.As shown in figure 3, resonance sample circuit includes that multiple capacitors and low-resistance are opened in the embodiment of the present invention
It closes, wherein capacitor C3One end is connected with output end of stabilized voltage supply, other end ground connection, C4And C5Capacitor one end is also defeated with regulated power supply
Outlet is connected, and the other end is grounded by low-ohmic switches.The data group that resonance sample circuit obtains is controlled via array scanning and acquisition
Device processed carries out amplitude features processing and storage according to the algorithm of design, thus can be by 50HZAC signal is per monocyclic amplitude
Sampling time foreshortens to less than 5ms.After certain unit (or certain column or certain row) gating, sampling, amplitude features processing and storage, according to
The repetitive operation of secondary progress next unit (next column, next line), until completing the operation of whole units, this is complete for one
The scanning sample period.Sensor array component moves in circles as procedure described above under the control of array scanning and acquisition controller
Continue working.Further it is equivalent after circuit, wherein equivalent capacity C depend on resonant capacitance selection control D12And D13, D12And D13
Various combination it is corresponding with array scanning operating mode, as shown in table 1 below.
Table 1
The low-ohmic switches, using two-way Analog Switch with Low On-state Resistance device MAX4608；C3, C4,
C5Capacitor uses monolithic capacitor.
For 50HZPower frequency component, from the calculation formula of resonance frequency
Wherein f0=50HZ, then have
L=100MH is selected in application examples, bringing above formula into can calculate
C=101.32pF
C=100pF is taken, according to different scanning work modes, table and circuit diagram in correspondence can calculate C3, C4With
C5。
Sensing array apparatus is as power transmission line surrounding magnetic field information detection, detection, by scanning collection controlling unit control
System, realizes the acquisition of magnetic field distribution and strength information, then calculates detected target by subsequent data signal processing links
The information such as position, the distance of (ultra-high-tension power transmission line).
It include socket, the socket is arranged in the side of substrate, and each wiring of resonance sample circuit is and socket
It is connected.The socket is 24 lines, wherein connection 10 lines of column drive circuit, 11 lines of horizontal drive circuit, 1 road ground wire, 1 tunnel
Power supply line, 1 road signal output line.
Passing through array scanning in the present invention and adopting controller can set, convert a variety of scannings and sampling operation mode, with suitable
Different application is answered to require.High-precision voltage stabilizing circuit provides the DC power supply of high stability, array scanning and acquisition for antenna assembly
Controller controls column drive circuit and horizontal drive circuit, can successively be gated according to setting sequence all units of n × m matrix or by
Column or line by line or whole unit, the electromagnetic induction coil being strobed and resonance sampling equivalent capacity composition resonance signal acquisition
Device, collected electromagnetic induction signal carry out high-speed sampling to it by high-speed AD converter after filtering conditioning circuit processing.
Preferred embodiments of the invention will be described in detail below；Preferred embodiments be should be appreciated that only for saying
The bright present invention, rather than limiting the scope of protection of the present invention.
10 × 10 matrix type electromagnetic field sensor array has 100 magnetic induction units according to 10 rows, 10 column distributions,
Magnetic induction unit of the invention, each magnetic induction unit is by 2 inductance coils and 2 low on-resistance switching tube groups
At two inductance L1=L2=50mH, 9 × 12mm of shape coil be separately mounted to the front and back sides of circuit board, be orthogonal point
Cloth.When column driving and effective row driving (high level), the inductance of corresponding unit is strobed (L1And L2), simultaneously with resonant capacitance C composition
Join resonance sample circuit, scanning is different with sampling operation mode under the control of low on-resistance switching tube, and the value of corresponding C is not
Together, it works in and scans by column acquisition mode C=C3, point by point scanning acquisition mode C be C3And C4Parallel connection, progressive scan acquisition mould
Formula C is C3And C4And C5Three is in parallel, and resonance sample circuit is acquired magnetic strength induction signal.At the same time, Q3In cut-off shape
State, when column driving effectively and go driving it is invalid when, Q3It is in the conductive state and the inductance of this unit is short-circuit, it is now in same column
The sampling periods of other row (non-current row) units.Wherein the i-th row, the element circuit of jth column are as shown in Figure 2.It should be noted that
For ease of description the characteristics of element circuit and working principle, simplified or equivalent process has been done to the circuit on this unit periphery.Generally
The description included, element circuit and external connection signal have at six classes nine in the present invention：
A point meets column control signal Lj, high level is effective, QLjConducting, gates the column；Otherwise QLjCut-off.
B, C point, C connect the corresponding column driving tube of next column, and B connects the corresponding column driving tube of column previous column until resonance samples electricity
Road, each column are parallel relationships.The channel BC is also referred to as column selection channel.
D point meets row control signal Hi, high level is effective, QHiConducting, gates the row, controls pipe Q by rowH10Ground connection (by
When spot scan and progressive scan operating mode, H10For low level, row control pipe QH10Conducting), or pass through QH9Ground connection (scans by column
When with Surface scan operating mode, H10For high level, QH10Cut-off；And H at this time10For high level, QH9Conducting, the series signals respectively arranged
Through QH9Ground connection).
E point meets row control pipe QH10(in addition to last row) arrives ground afterwards.When point by point scanning and progressive scan operating mode, QH10
Conducting；When scanning by column with Surface scan operating mode, QH10Cut-off.
F point, connects that next line is corresponding and door.
G point connects the corresponding inductance of next line.
K point is 0~9 signal, and progressive signal quantity successively decreases, and each signal connects the nipple of this column each unit below
Q’ij。
S point connects the row selector channel of previous column, by row driving tube QHiControl the "on" and "off" of the channel and ground wire.
L, unit inductance, by two inductance L1And L2It is composed in series, takes L1=L2, using 9X12-50MH inductance (customization).
The simple equivalent circuit of gating unit is exactly an equivalent inductance L.
The scanning work mode that the present invention can be realized is described as follows：
(1) point by point scanning mode
Certain horizontal-drive signal is effective, certain column driving signal is effective, and row control signal is effective, then gates certain unit.Successively select
Logical each unit, such as
(2) progressive scanning mode
Certain horizontal-drive signal is effective, and full column driving signal is effective, and row control signal is effective, then gates certain row.Successively gate
Each row, such as
(3) mode is scanned by column
Certain column driving signal is effective, and full horizontal-drive signal is effective, and row control invalidating signal then gates certain column.Successively gate
Each column, such as
(4) Surface scan mode
Full column driving signal is effective, and full horizontal-drive signal is effective, and row control invalidating signal then gates entire entire surface, such as
The present invention can be whether there is by passive type array inductance coil real-time perception power transmission line, by combining multiple sweep
Mode is retouched, it is further to perceive range information and position angle information of the aircraft with respect to power transmission line, for follow-up signal processing electricity
Road provides distinguishing rule.The present invention carry unmanned plane can automatic identification transmission line of electricity spatial position, and then provided for aircraft
Navigation, tracking, the Airborne Tracking sensing device for controlling signal, to realize the avoidance of aircraft, automatically track patrol flight function,
With boundless market prospects.
Claims (6)
1. a kind of passive type array magnetic induction antenna assembly, it is characterised in that：Including substrate, be provided on substrate driving circuit,
Voltage regulator circuit, resonance sample circuit and multiple electromagnetic induction subelements, the multiple electromagnetic induction subelement array are uniformly arranged,
Be denoted as M*N column matrix, then driving circuit include the total driving circuit of row, the road M horizontal drive circuit, the road N column drive circuit and M*N with
Gate circuit, electromagnetic induction subelement and AND gate circuit correspond；The total driving circuit of the row, the road M horizontal drive circuit and the road N
Driving circuit is NPN triode, and the corresponding row NPN triode of the electromagnetic induction subelement where every a line is driven,
The corresponding column NPN triode of electromagnetic induction subelement where each column is driven, and the total driving circuit of row is that a row is total
Drive NPN triode；
The electromagnetic induction subelement includes a pair of of inductance coil, the first low on-resistance switching tube and the second low electric conduction
Switching tube is hindered, a pair of of inductance coil is composed in series by the inductance of two omnidirectional distributions, and the one of the pair of inductance coil
The collector of the second low on-resistance switching tube of end connection, the first low on-resistance switching tube emitter connect second simultaneously and low lead
It is powered and hinders the emitter of switching tube；
The emitter of any one second low on-resistance switching tube in same a line electromagnetic induction subelement with place
The collector of the corresponding row NPN triode of row is connected；Wherein the emitter of M-1 row NPN triode always drives NPN tri- with row
The collector of pole pipe is connected, and the emitter of a remaining row NPN triode is connected with the emitter of the total driving NPN triode of row
It connects, the emitter grounding connection of the total driving NPN triode of row, the M row NPN triode and total driving NPN triode of going
Base stage is driving circuit input terminal；
The emitter of any one first low on-resistance switching tube in same row electromagnetic induction subelement with place
The emitter of column respective column NPN triode is connected, while from bottom to top, a pair of of inductance coil in the electromagnetic induction subelement of lower section
The other end be connected with the emitter of the second low on-resistance switching tube in top electromagnetic induction subelement adjacent thereto, it is same
Arrange the emitter of the other end of a pair of of inductance coil and column respective column NPN triode in the electromagnetic induction subelement of the top
It is connected；
The base stage of any one row NPN triode simultaneously be expert in any one electromagnetic induction subelement it is first low
The base stage of conducting resistance switching tube be expert in the first input end of any one AND gate circuit be connected；It is described any one
The base stage of column NPN triode is connected with the second input terminal of any one AND gate circuit in column respectively, any one with
The output end of gate circuit is connected with the base stage of the second low on-resistance switching tube in corresponding electromagnetic induction subelement；
The collector of N number of column NPN triode is defeated with the output end of voltage regulator circuit and sample circuit respectively after being connected with each other
Enter end to be connected.
2. passive type array magnetic induction antenna assembly according to claim 1, it is characterised in that：The resonance samples electricity
Road includes multiple capacitors and low-ohmic switches, and wherein first capacitor one end is connected with output end of stabilized voltage supply, other end ground connection, remaining
Capacitor one end is also connected with output end of stabilized voltage supply, and the other end of remaining capacitor is grounded by low-ohmic switches.
3. passive type array magnetic induction antenna assembly according to claim 2, it is characterised in that：The low-ohmic switches,
Using two-way Analog Switch with Low On-state Resistance device MAX4608.
4. passive type array magnetic induction antenna assembly according to claim 3, it is characterised in that：The resonance samples electricity
Capacitor is monolithic capacitor in road.
5. passive type array magnetic induction antenna assembly according to claim 4, it is characterised in that：The inductance coil is adopted
With helix tube inductance coil.
6. passive type array magnetic induction antenna assembly according to claim 5, it is characterised in that：It further include having socket, institute
The side that substrate is arranged in socket is stated, and each wiring of resonance sample circuit is connected with socket.
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| CN2821156Y (en) * | 2005-06-17 | 2006-09-27 | 中国石化集团胜利石油管理局测井公司 | Array induction logging instrument |
| US9110195B2 (en) * | 2011-04-14 | 2015-08-18 | Wen J. Whan | Electromagnetic and its combined surveying apparatus and method |
| CN104124776B (en) * | 2013-04-28 | 2018-06-08 | 海尔集团技术研发中心 | Radio energy transmission system and its control method based on resonance coil array |
| JP5969648B1 (en) * | 2015-03-19 | 2016-08-17 | 日本電信電話株式会社 | Antenna device, radio wave arrival direction tracking antenna device, and radio wave arrival direction estimation method |
| CN105842742A (en) * | 2016-03-28 | 2016-08-10 | 大同市快安科技有限公司 | Specific metal detecting device and specific metal intelligent identification learning method |
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2017
- 2017-01-23 CN CN201710062399.XA patent/CN106896414B/en not_active Expired - Fee Related
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