CN205429369U - Cable probe connector ware for electrical prospecting - Google Patents

Abstract

The utility model discloses a cable probe connector ware for electrical prospecting, including head end electric connector 1, cable body 2, tail end electric connector 3, probe electric connector 4, probe 5 and terminal matching ware 6, every section this cable probe connector ware has the type code, but the multistage connect in order, its head end electric connector 1 is used for even electrical prospecting instrument or one section last cable probe group, tail end electric connector 3 to be used for connecting next section cable probe group or terminal matching ware 6, to all connect probes, the cable has self -checking function. The utility model discloses can concentrate the collection with the earth electricity information in the search coverage, handle the analysis for the electrical prospecting instrument information transfer, effectually solve the problem that the survey line volume of arranging the engineering is big, detection efficiency is low in traditional physical prospecting engineering to reduced sounding data space -time difference, improved collecting information's interference killing feature.

Description

Electrical prospecting cable probe adapter

Technical field

The utility model relates to a kind of electrical prospecting cable probe adapter, uses sectional type cable probe structure, can Multistage connects use in order, and all linking probes, cable are had self-checking function.

Background technology

Electrical prospecting is according to the electromagnetic property (such as electric conductivity, magnetic conductivity, dielectricity) of rocks each in the earth's crust or ore body With the difference of electrochemical properties, by the space distribution rule of artificial or natural electric field, electromagnetic field or electrochemical field and time The observation of characteristic and research, find dissimilar useful mineral deposit and find out that the geophysics of geological structure and solution geological problem is surveyed Spy method.It is mainly used in finding metal, nonmetal depdosit, mapping sub-surface water resource and the energy, solves some engineering geology and deep Portion's geological problem.The earth's crust is made up of different rocks, ore body and various geological structure, they have different electric conductivity, Magnetic conductivity, dielectricity and electrochemical properties.According to these character and space distribution rule thereof and time response, people may infer that Ore body or architectonic occurrence status (shape, size, position, occurrence and buried depth) and physical parameter etc., thus reach The purpose of exploration.Electrical prospecting has and utilizes physical parameter many, and field source, device form are many, observation content or measure key element many and The features such as applied range.The method of electrical prospecting, can be divided into artificial field method (active source method), natural field method by field source character (passive source method)；Aeroelectrical method, surface electric survey, underground electrical method can be divided into by observation space；Can divide by the time response of electromagnetic field For DC electrical method (time-domain electrical method), AC electrical method (frequency domain electro-prospecting), transient process method (pulse ringing field method)；Different by producing Often the reason of electromagnetic field can be divided into conducting electrical method, induced electrical method；Pure anomaly field method, sum total field method can be divided into by observation content Deng.The electrical prospecting method that China commonly uses has resistivity method, mise-a-la-masse method, induced polarization method, natural electric field method, telluric electromagnetic sounding Method and electromagnetic induction method etc..

In existing electrical prospecting, being usually " probe+cable+instrument " detection mode, detection instrument is by detection cable Be connected the ground power information to receive the probe each measuring point of acquisition with probe, and the acquisition of each measuring point information at least needs 2 probes, The commonly referred to as distance between probe and probe be distance between " pole span ", measuring point and measuring point for " point away from ", and pole span size depends on In reconnoitring depth area requirement, and put and determine the plane precision reconnoitred away from size.In existing methodical actual detection engineering, for Be met the pole span of requirement and point away from, need frequent traveling probe or arrange substantial amounts of probe and detection cable (or probe and instrument The connecting line of device), have the disadvantage that the low instrument for only joining 2 probes of (1) efficiency, only gather the data of a measuring point Need several seconds time to a few minutes (different because investigation depth is different), and traveling probe arrange that what a measuring point generally requires Dozens of minutes；(2) quantities is greatly for configuring the instrument of multiprobe, and every probe is meeting pole span and point while requiring also The connecting line of one and instrument need to be arranged, connect up loaded down with trivial details and quantities is big；(3) in the existing detection mode of poor anti jamming capability, Instrument mostly uses plain conductor with the connection of probe, is easily caused detection data invalid by the electromagnetic interference of detection environment；(4) The big existing detection mode of space and time difference of detection data needs measuring point one by one to carry out data acquisition, gathers rising of data between measuring point Moment beginning is separated by longer, and space-time condition when causing each measuring point data to sample differs, and adds subsequent data analysis and explanation Difficulty；(5) without connection self-checking function in existing detection, whether probe is connected with detection cable, detects whether cable is opened Road？Instrument is entirely ignorant of, and result in the uncertain factor that there is many in detection process.

The particularity of electrical prospecting mode, the complexity of detection environment and cost control to probe, cable performance all There are more strict requirements: probe must be the sensitiveest for electromagnetic field signal, can accurately obtain useful signal, must have simultaneously There is excellent anti-interference to obtain actual signal；Cable must facilitate portable, simple to operate in the middle of actually used, and must The requirement of cost control must be met, have higher cost performance；Probe, cable whether excellent for the excellent of electromagnetic wave signal with No tool is of great significance.Probe based on existing detection mode, cable mostly are line one probe geometries, and detection efficient is relatively Low and inconvenient to carry, wire laying mode is complex, interference free performance is poor, it is difficult to meet what electrical measuring instrument, improved day by day Performance requirement.Therefore, develop a kind of can be suitable for various detection environment, wiring flexibly, the cable probe groups of strong interference immunity very It is necessary.

Summary of the invention

For above-mentioned situation, the purpose of this utility model is to provide a kind of electrical prospecting cable probe adapter, and it is adopted With sectional type cable probe structure, linking probe and detection instrument, use can be connected in order by multistage, and to all linking probes, Cable has self-checking function；Its simple in construction and being easy to carry, and there is stronger anti-interference, with supporting electrical prospecting instrument Device connects use can obtain more real seismic electrical signal.

To achieve these goals, develop a kind of wiring flexible segmentation formula cable probe for electrical prospecting to connect Device.This connector includes head end electrical connector, cable body, tail end electrical connector, probe electrical connector, probe and terminal coupling Device, described head end electrical connector is connected with tail end electrical connector by cable body, and probe is by probe electrical connector and electricity Cable body is connected, and head end electrical connector is used for connecting electrical measuring instrument, or the preceding paragraph cable probe adapter, and tail end is electrically connected Fitting is used for connecting next section of cable probe adapter or terminator cap, and every section of cable is uniformly distributed at a distance of 8 probes for D Electrical connector, first probe is t rice with the distance of head end electrical connector, and tail probe is D-t rice with the distance of tail end electrical connector, should Cable probe adapter every section has type coding, can connect use in order by multistage.

For realizing structure optimization and ideal serviceability, the measure of its progressive step is:

The described aviation plug that head end electrical connector is 12 cores, is used for connecting electrical measuring instrument, or the preceding paragraph electricity Cable probe adapter.

Described cable body is 20 core double-shielded cable, including internal layer core, void filler, internal shield, interior Separation layer, outer layer core, outer separation layer, total screen layer, oversheath；It by 7 internal layer cores and void filler through inner shield Wrapped interior separation layer after layer braiding, wrapped outer separation layer after being uniformly distributed 13 outer layer cores outside it, then woven by total screen layer Rear extruding oversheath forms.

Described tail end electrical connector is a cylinder, including cable accessing port, base, upper cover, control circuit plate, aviation Socket, cable body is connected with control circuit plate, aviation socket through cable accessing port, and aviation socket is used for connecting next section of cable Probe adapter or terminator cap；Control circuit plate by 8 SI PO shift register IC1,8 be incorporated to go here and there out displacement and post Storage IC2,8 select 1 analog switch IC3 and IC4,8 toggle switch SW1,8 diode D1～D8 and 8 resistance R1～R8 group Become, determine that the probe of this section of cable selects by IC1 removal control code to IC3 and IC4, resistance R1～R8 and toggle switch SW1 The type coding arranging this section of cable is removed by IC2, on diode D1～D8 and this section of cable in 8 probe electrical connectors Diode is used for amplitude limit probe input signal together to protect internal circuit.

Described probe electrical connector is made up of metal top cover, insulating materials lower cover two parts, and described cable body is from upper The cable via of lid passes and is fixed in internal thread by two cable fixing parts, cable external shield connects and consolidates with screw Link to G end and the A end of probe in detecting circuit board due to upper cover internal thread, internal shield and an outer layer core, described probe by The probe of lower cover screws in two resilient contacts on screw screw-in short circuit probe in detecting circuit board；Probe in detecting circuit board is by magnetic bead Z1, resilient contact SW2, electric capacity C1 and diode D9 composition.

Described probe is a metal material thin bar with good electric conductivity, and the nipple of upper part is used for and probe Electrical connector is connected, and it is the easiest that the cone of end portion can make detection bar insert earth, and centre is slender cylinder.

Described terminator cap is an impedance matching network being attached on tail end connector, including electric capacity C2, C3, Input and output within cable are connected and composed a closed-loop path by C4, C5 and resistance R9, R10, R11.

The utility model uses the technical scheme that detection bar is connected by sectional type cable with electrical measuring instrument, at cable Initial and end end is connected to aviation plug and aviation socket respectively, can connect use in order by multistage cable probe adapter, and to institute Linking probe, cable is had to have self-checking function.Ground power information in search coverage can be carried out centralized collection, by information by the program Send electrical measuring instrument, to and carry out Treatment Analysis, effectively solve in tradition physical prospecting engineering that arrangement of measuring-line quantities is big, visit Survey inefficient problem, and decrease the space and time difference of detection data, improve the antijamming capability of collection information.This practicality is new Type is applicable to be connected use with physical prospecting device, natural electric field signal carries out concentrated collection, and is carried out signal by host computer Analyzing and processing, judges its physical characteristic according to the electric field Electrical analysis in search coverage.

With detailed description of the invention, the utility model is described in further detail below in conjunction with the accompanying drawings.

Accompanying drawing explanation

Fig. 1 is structure principle chart of the present utility model

In figure: 1. head end electrical connector, 2. cable body, 3. tail end electrical connector, 4. probe electrical connector, 5. probe, 6. terminator cap.

Fig. 2 is cable body structure chart of the present utility model.

In figure: 2-1. internal layer core, 2-2. void filler, 2-3. internal shield, separation layer in 2-4., the outer layer line of 2-5. Core, the outer separation layer of 2-6., the total screen layer of 2-7., 2-8. oversheath.

Fig. 3 is tail end electrical connector circuit theory diagrams of the present utility model.

Fig. 4 is tail end electrical connector structure chart of the present utility model.

In figure: 4-1. cable accessing port, 4-2. tail end electrical connector base, 4-3. tail end electrical connector upper cover, on 4-4. Lid fixing screw hole, 4-5. tail end electrical connector control circuit plate, 4-6. control circuit plate fixes screw, and 4-7. tail end aviation is inserted Seat.

Fig. 5 is probe electrical connector structure chart of the present utility model.

In figure: 5-1. probe screws in screw, and 5-2. probe connection circuit board, spiral shell fixed by 5-3. probe connection circuit board Nail, 5-4. connects upper cover screw hole, 5-5. cable via, and 5-6. cable fixing part internal thread, in 5-7. cable external shield connects Screw thread, 5-8. connects lower cover internal thread.

Fig. 6 is probe electrical connector circuit theory diagrams of the present utility model.

Fig. 7 is probe appearance schematic diagram of the present utility model.

In figure: 7-1. connects external screw thread, 7-2. detects the body of rod, 7-3. probe tip.

Fig. 8 is terminator cap circuit theory diagrams of the present utility model.

Detailed description of the invention

In conjunction with accompanying drawing, Fig. 1 is structure principle chart of the present utility model, and Fig. 2 is cable body structure chart of the present utility model, Fig. 3 is tail end electrical connector circuit theory diagrams of the present utility model, and Fig. 4 is tail end electrical connector structure chart of the present utility model. A kind of electrical prospecting cable probe adapter, including head end electrical connector 1, cable body 2, tail end electrical connector 3, probe electricity Connector 4, probe 5 and terminator cap 6, wherein head end electrical connector 1 is connected with tail end electrical connector 3 by cable body 2 Connecing, probe 5 is connected with cable body 2 by probe electrical connector 4, and head end electrical connector 1 is used for connecting electrical measuring instrument, Or the preceding paragraph cable probe adapter, tail end electrical connector 3 is used for connecting next section of cable probe adapter or terminator cap 6.This cable probe adapter every section has type coding, can connect use in order by multistage, every section of cable is uniformly distributed apart For 8 probe electrical connectors 4 for linking probe 5 of D, first probe is t rice with the distance of head end electrical connector 1, tail probe It is D-t rice with the distance of tail end electrical connector 3；Type coding is 8 binary codes, and high 3 scopes that arrange representing t-1(t are 1～4 meter), low 5 scopes that arrange representing D-1(D are 1～32 meter), by the toggle switch SW1 within tail end electrical connector 3 Arrange；Such as the cable probe adapter that type coding is 19H, represent that being uniformly distributed on this section of cable is apart 8 spies of 10 meters Pin, first probe is 2 meters with the distance of head end electrical connector, and tail probe is 8 meters with the distance of tail end electrical connector.Head end electrically connects Part 1 is the aviation plug of 12 cores, the definition of its heart yearn and 12 core aviation socket and terminator caps of tail end electrical connector 12 core aviation plugs consistent, be: heart yearn 1 and 2 meets power supply VCC, heart yearn 11 and 12 meets power supply ground GND, heart yearn 10 connects electricity Cable shielding ground EGND, heart yearn 7 connect probe in detecting and signal ground TZJC, heart yearn 8 and 9 connect probe signals Differential Input IN+ and IN-, Heart yearn 3 meets serial synchronization clock DCLK, heart yearn 5 meets serial date transfer Din, heart yearn 4 connects serial data output Dout, heart yearn 6 Meet Shift register initialization SH/LD.

Cable body 2 is 20 core double-shielded cable, sees accompanying drawing 2, including internal layer core (2-1), void filler (2- 2), internal shield (2-3), interior separation layer (2-4), outer layer core (2-5), outer separation layer (2-6), total screen layer (2-7), protect outward Set (2-8)；By 7 internal layer cores (2-1) and void filler (2-2) wrapped interior separation layer after internal shield (2-3) weaves (2-4), it is uniformly distributed the 13 the most wrapped outer separation layer of outer layer cores (2-5) (2-6) outside it, then is woven by total screen layer (2-7) Rear extruding oversheath (2-8) forms；7 internal layer cores are formed by copper wire or tinned copper wire are stranded, all use F46 to insulate, and by The color of insulation is distinguish between, such as: blue, red, black, brown, grey, yellow, green, the sectional area of Line 1 core therein be 0.2mm2, the The sectional area of 2～No. 7 cores is 0.3mm2, carries out stranded by the both threads core of the 2nd and 3,4 and 5,6 and No. 7, and twisting pitch is not More than 15mm, by three groups of stranded cores and Line 1 core (center line) is stranded forms, pitch is not more than 20 times of external diameter, space Place uses cotton thread or the rope made of hemp to fill carrying effect, the core that will always twist uses the copper wire of Φ 0.12mm or tinned copper wire compile Knitting and form, density is not less than 90%, uses PP band or polyester belt, one layer of wrapped, one layer of vertical bag, and rate of putting up is not less than 15%, it is impossible to Bottom pour ladle situation occurs；13 outer layer cores are formed by copper wire or tinned copper wire are stranded, all use F46 insulation, and by the face insulated Look is distinguish between, such as: red, black, brown, grey, yellow, green, blue, white, pink, pale green, orange, the therein 8th and the insulation of No. 10 line core Red and sectional area is 0.3mm2, the insulation black of the 9th and No. 11 core and sectional area are 0.3mm2, the 12nd～No. 19 core Sectional area is 0.2mm2, and wrapped one layer of polyester belt on the core that stranding is good, and rate of putting up is not less than 15%, and total stranding is good The copper wire or the tinned copper wire braiding that use Φ 0.12mm on core form, and density is not less than 90%, uses 105 DEG C of flame-retardant chemigums to gather Compound is extruded from, finished color: black, external diameter: 11.8 ± 0.3mm, and all insulated wire cores sparking test voltages are 4KV Not puncturing, wireline environment temperature-40～+75 is spent.8th and No. 10 line core of cable meet power supply VCC, the 9th and No. 11 core Meeting power supply ground GND, No. 20 core is used as cable shield ground with the external shielding layer of cable after being connected at aviation plug socket EGND, Line 1 core internal shield with cable at aviation plug socket is connected, in normal detection as signal ground, Being used as detection signal TZJC output during cable probe self-inspection, the 2nd and No. 3 core is used as probe signals Differential Input IN+ and IN-, No. 4 core is used as serial synchronization clock DCLK, and No. 6 core is used as serial date transfer Din, and No. 5 core is used as serial Data output Dout, No. 7 core is used as Shift register initialization SH/LD, and the 12nd～No. 19 core is respectively used to be connected to The A end within 8 probe electrical connectors on cable.

Described tail end electrical connector 3 is a cylinder, sees accompanying drawing 3, accompanying drawing 4, including cable accessing port (4-1), the end Seat (4-2), upper cover (4-3), control circuit plate (4-5), aviation socket (4-7), described cable body 2 is through cable accessing port (4- 1) being connected with control circuit plate (4-5), aviation socket (4-7), aviation socket (4-7) is used for connecting next section of cable probe and connects Device or terminator cap 6；Control circuit plate (4-5) is had by 8 SI PO shift register IC1(optional chip models: 74HC164,74LS164 etc.), 8 be incorporated to go here and there out shift register IC2(optional chip model and have: 74HC164,74LS164 etc., Also can be realized IC1, IC2 function by 1 Prammable PLD), 8 select 1 analog switch IC3 and IC4(optional chip model Have: CD4051, MAX4781, AD7510, LF13508 etc.), 8 toggle switch SW1(can circuit board solder joint short circuit replace), 8 Diode D1～D8 and 8 resistance R1～R8 compositions.20 core double-shielded cable cable bodies 2 are entered by cable accessing port (4-1) Entering, cable accessing port (4-1) has the external screw thread for connecting cable cover(ing)；Connect the of the internal A ends of 8 probe electrical connectors 12～No. 19 cores are connected to 8 probe signals inputs of control circuit plate (4-5), 8 probe signals inputs and connect with Two panels 8 is selected on 8 input pins of 1 analog switch IC3, IC4, and 8 probe signals inputs connect respectively diode D1～ The anode of D8, the negative electrode of diode D1～D8 meets power supply VCC, with the plus earth in 8 probe electrical connectors on this section of cable Diode together for amplitude limit probe input signal to protect internal circuit；8th, No. 10 line core connects head end electrical connector The power supply VCC of heart yearn 1 and 2 is attached directly to 1 and 2, the 9th, No. 11 cores of heart yearn of the aviation socket of tail end electrical connector and connects head The power supply ground GND of the heart yearn 11 and 12 of end electrical connector is attached directly to the heart yearn 11 and 12 of the aviation socket of tail end electrical connector, The cable shield ground EGND of the heart yearn 10 of No. 20 core connection head end electrical connector is attached directly to the aviation of tail end electrical connector The heart yearn 10 of socket, the serial synchronization clock DCLK of the heart yearn 3 of No. 4 core connection head end electrical connector is attached directly to tail end electricity The heart yearn 3 of the aviation socket of connector, the serial data output Dout of the heart yearn 4 of No. 5 core connection head end electrical connector is even In control circuit plate (4-5), in the serial data input of IC1, control circuit plate (4-5), the serial data output terminal of IC2 connects To the heart yearn 4 of the aviation socket of tail end electrical connector, the serial data of the heart yearn 5 of No. 6 core connection head end electrical connector is defeated Enter the heart yearn 5 that Din is attached directly to the aviation socket of tail end electrical connector, the heart yearn 6 of No. 7 core connection head end electrical connector Shift register initialization SH/LD is attached directly to the 6, the 2nd and No. 3 core of heart yearn of the aviation socket of tail end electrical connector and connects head Probe signals Differential Input IN+ and IN-of the heart yearn 8 and 9 of end electrical connector is attached directly to the aviation socket of tail end electrical connector Heart yearn 8 and 9, probe in detecting and the signal ground TZJC of the heart yearn 7 that Line 1 core connects head end electrical connector are attached directly to tail end The heart yearn 7 of the aviation socket of electrical connector.

Working power VCC of control circuit plate (4-5) be connected to the aviation socket of tail end electrical connector heart yearn 1 and 2, GND is connected to the heart yearn 11 and 12 of the aviation socket of tail end electrical connector, and 8 bit strings of control circuit plate (4-5) enter and go out displacement Register IC1 and 8 are incorporated to go here and there out the serial synchronization clock DCLK of shift register IC2 and link and be connected to tail end electrical connector The heart yearn 3 of aviation socket, Shift register initialization SH/LD are connected to the heart yearn 6 of the aviation socket of tail end electrical connector, two panels 8 heart yearns 8 and 9 selecting to export the aviation socket that IN+ and IN-is connected to tail end electrical connector selecting 1 analog switch IC3, IC4.8 Position be incorporated to go here and there out shift register IC2,8 toggle switch SW1 together with 8 resistance R1～R8 for arranging the 8 of this section of cable Position type coding, when 8 toggle switch SW1 all disconnect, goes here and there out the 8 parallel-by-bit input pins of shift register IC2 by pulling up Resistance R1～R8 pull-up is high level, and any 1 toggle switch closes, then the IC2 input of its correspondence is low level.Control electricity The road plate course of work is as follows: (1) is if the head end electrical connector of this section of cable is connected with electrical measuring instrument,；(2) by electrical prospecting Shift register initialization SH/LD is set to 0 by instrument, and 8 output pins of 8 SI PO shift register IC1 are initialised For low level, go here and there out simultaneously and be loaded into the shift register within IC2 on 8 parallel input pins of shift register IC2； (3) by electrical measuring instrument, Shift register initialization SH/LD is put 1, make shift register IC1, IC2 enter displaced condition； (4) electrical measuring instrument, sends 16 Bits Serial data Dout and serial synchronization clock DCLK, and 16 Bits Serial data are moved into by turn IC1, IC2,8 type codings within 8 initialization code, IC2 within IC1 are moved out to tail end electrical connection by turn simultaneously The heart yearn 4 of the aviation socket of part；(5) if connect on the aviation socket of tail end electrical connector is terminator cap 6, then heart yearn 4 return to the Din of head end electrical connector, electrical prospecting instrument with heart yearn 5 short circuit, the serial data of (4th) step removal by heart yearn 5 Device just can synchronize to move into 8 initialization code of this section of cable and 8 type codings by turn；(6) if the boat of tail end electrical connector Connect on dummy receptacle is next section of cable probe adapter, and the serial data of (4th) step removal is by tail end electrical connector The heart yearn 4 of aviation socket moves into next section of cable probe adapter, has the cable probe of terminator cap to connect until connecting Device just can return data to electrical measuring instrument, by the heart yearn 5 of the aviation socket of tail end electrical connector, (7) electrical measuring instrument, As long as sending many groups 16 Bits Serial data Dout and serial synchronization clock DCLK continuously, just connected electricity can be learnt by returning data The information such as the connection status of cable probe adapter quantity, type and probe；(8), when normally detecting, electrical measuring instrument, is according to (7) connection state information that step obtains sends the gating control code of respective amount, i.e. may select probe and the electrical method of arbitrary connection Prospecting instrument differential input signal line IN+ or IN-connects, it is achieved thereby that the point in detection process is away from the flexible tune with pole span Joint.The gating control code of every section of cable probe adapter is 8, and high 4 controls 8 select 1 analog switch IC4 with gating signal line IN + required probe connects, and low 4 control the 8 probes connections selecting 1 analog switch IC3 needed for gating signal line IN-；High and low 4 The definition of position control code is consistent, as a example by low 4 control codes: bit3=1 does not gate this section of probe as holding wire IN-, follow-up Bit2～bit0 is unlimited, bit3=0 gate this section of probe as holding wire IN-, bit2～bit0=000,001,010,011, 100,101,110,111 gate probe T1, T2, T3, T4, T5, T6, T7, T8 respectively.

Seeing accompanying drawing, Fig. 5 is probe electrical connector structure chart of the present utility model, and Fig. 6 is probe of the present utility model electricity Connector circuit theory diagrams, Fig. 7 is probe appearance schematic diagram of the present utility model.Probe electrical connector 4 includes upper cover, lower cover two Part, upper cover is machined by aluminium, copper or stainless steel and other metal materials and forms, lower cover then use ultra high molecular polyethylene, poly-four The insulating materials such as PVF are poured into a mould or are machined into.Described cable body 2 passes and by two from the cable via (5-5) of upper cover Individual cable fixing part is fixed in internal thread (5-6) place, cable external shield connects and is screwed in upper cover internal thread (5- 7), internal shield (2-3) and an outer layer core (2-5) link to G end and the A end of probe in detecting circuit board (5-2), described probe 5 are screwed in two resilient contacts on screw (5-1) screw-in short circuit probe in detecting circuit board (5-2) by the probe of lower cover；Probe is examined Slowdown monitoring circuit plate (5-2) is made up of magnetic bead Z1, resilient contact SW2, electric capacity C1 and diode D9.Probe 5 is one to have good electric conductivity Metal material thin bar, the nipple (7-1) of upper part for being connected with probe electrical connector 4, the circular cone of end portion It is the easiest that body (7-3) can make detection bar insert earth, and middle (7-2) is slender cylinder.

When probe is screwed in screwed hole (5-1) screw-in by the probe of lower cover, probe is played fixation by internal thread, works as probe Being screwed into certain depth can be by two resilient contact SW2 short circuit on probe in detecting circuit board (5-2), and its specific works process is such as Under: (1), when probe connection status detects, is sent by electrical measuring instrument, and need to detect gating control code corresponding to probe to tail end Electrical connector and by the Line 1 core TZJC(of cable and cable internal shield short circuit) output probe in detecting signal is to probe inspection The G end of slowdown monitoring circuit plate, probe in detecting signal through diode D9, the A end of resilient contact SW2, magnetic bead Z1 to probe in detecting circuit board, A end selects 1 mould by 8 of a control circuit plate being connected within tail end electrical connector in the 12nd～No. 19 core of cable Intend switch input pin, analog switch gating output pin be connected to the 2nd of cable the, No. 3 cores (two input channels, every time Two probes can be detected), it is connected with electrical measuring instrument, through head end electrical connector, electrical measuring instrument, is according to the detection letter returned Number judge and provide the connection status of probe and the break-make situation of cable；(2) under normal detection event, No. 1 of cable Core TZJC is by connecing signal ground (being i.e. the G termination signal ground of probe in detecting circuit board) inside electrical measuring instrument, by electrical method Prospecting instrument sends gating control code to tail end electrical connector to select two probes needing test to be connected to the 2nd of cable the, 3 Number core is input to electrical measuring instrument, internal testing circuit, now, the diode D9 of probe in detecting circuit board as IN+, IN- Anode connect signal ground, together with the diode meeting power supply VCC with the negative electrode within tail end electrical connector for amplitude limit probe input Signal is to protect internal circuit, and the signal that probe receives is through the A end of resilient contact SW2, magnetic bead Z1 to probe in detecting circuit board, A End selects 1 mould by 8 of a control circuit plate being connected within tail end electrical connector in the 12nd～No. 19 core of cable Intending switch input pin, analog switch gating output, to the 2nd of cable the, No. 3 cores, is connected to electrical method through head end electrical connector and surveys Visit instrument internal test circuit.

Probe 5 is used for receiving ground power information, field signal in it had both received the earth's crust in detection process, the most also connects Receive the electromagnetic interference signal in space；For avoid spatial electromagnetic interference on detection impact, resilient contact SW2 with connect signal ground High frequency characteristics preferable ceramic disc capacitor C1(preferred high frequency zero temp shift stain ceramic disc capacitor is concatenated) between G end.Due to ground power information Signal frequency range in very low frequency (3～30KHz) scope, extract ground power information, between resilient contact SW2 and A end for effective It is serially connected with High frequency filter magnetic bead Z1.Magnetic bead Z1 is equivalent to resistance and inductance series connection, but resistance value and inductance value all change with frequency, It has more preferable High frequency filter characteristic than common inductance, presents resistive when high frequency, so can be in comparatively wide frequency range The impedance that interior holding is higher, thus improve filter effect；Magnetic bead is made up of Ferrite, and inductance is made up of magnetic core and coil, magnetic Pearl is converted into heat energy AC signal, and inductance stores exchange, discharges slowly；Ferrite bean cannot be only used for Filtering high-frequency noise in circuit, also can be widely used to other circuit, its volume can be made very small；Particularly in digital circuit In, owing to pulse signal contains the higher hamonic wave that frequency is the highest, also it is the main contributor of circuit high frequency radiation, so can be this Occasion plays the effect of magnetic bead.

Fig. 8 is terminator cap circuit theory diagrams of the present utility model, terminator cap 6 be one be attached to tail end connect Impedance matching network on part 3, including electric capacity C2, C3, C4, C5 and resistance R9, R10, R11, owing to circuit structure is simple, by it Making and be arranged on inside 12 core aviation plugs, the heart yearn definition of this aviation plug is consistent with head end electrical connector 1.Electricity Lu Zhong, electrochemical capacitor C5 are used as the decoupling capacitance on power line together with ceramic disc capacitor C2, electric capacity C3 and C4 be high frequency characteristics relatively Good ceramic disc capacitor, filters the High-frequency Interference on two differential signal lines in normal detection；Resistance R9 is used for serial time clock line With the impedance matching of serial data line, resistance R10 uses for the pull-up of Shift register initialization SH/LD holding wire, resistance R11 To reduce the DM EMI between two differential signal lines.

In sum, sectional type cable probe adapter of the present utility model, it is connected to aviation respectively at cable initial and end end and inserts Head and aviation socket, can connect use by multistage cable probe adapter in order, and electrical measuring instrument, can by self-checking function Obtain connected cable probe adapter quantity and type coding, the connection status of all probes, the conducting shape of cable core The information such as condition；The cable body structure of double layer screen, external shielding layer can effective shielding space electromagnetic interference, internal shield for every From power supply and the interference of digital signal line.In detection, the seismic electrical signal that probe receives uses differential mode transmission, greatly presses down Having made common mode disturbances, transmission line is that twisted-pair feeder and two is terminated with build-out resistor, can effectively suppress DM EMI.Apply this practicality Ground power information in search coverage can be carried out centralized collection by novel many groups cable probe adapter, communicates information to electrical method Prospecting instrument carries out Treatment Analysis, effectively solve tradition physical prospecting engineering in arrangement of measuring-line quantities is big, detection efficient is low Problem；Electrical measuring instrument, can by flexible in programming configure the point of each measuring point away from and pole span, gather each measuring point data in an orderly manner, subtract Lack the space and time difference of detection data, improve the availability of collection information.The utility model is applicable to be connected with physical prospecting device Using, power information carries out concentrated collection over the ground, and is analyzed processing, according to in search coverage to signal by host computer Electric field Electrical analysis judges its physical characteristic.

Claims (7)

1. an electrical prospecting cable probe adapter, including head end electrical connector (1), cable body (2), tail end electrical connection Part (3), probe electrical connector (4), probe (5) and terminator cap (6), it is characterised in that described head end electrical connector (1) is used In connecting electrical measuring instrument, or the preceding paragraph cable probe adapter and passing through cable body (2) and be used for being connected next section of cable spy The tail end electrical connector (3) of needle connector or terminator cap (6) is connected, and probe (5) is by probe electrical connector (4) and electricity Cable body (2) is connected, and every section of cable is uniformly distributed at a distance of 8 probe electrical connectors (4) for D, first probe and head end electricity The distance of connector (1) is t rice, and tail probe is D-t rice with the distance of tail end electrical connector (3), and this cable probe adapter is every Section has type coding, can connect use in order by multistage.

Electrical prospecting cable probe adapter the most according to claim 1, it is characterised in that described head end electrical connection Part (1) is the aviation plug of 12 cores.

Electrical prospecting cable probe adapter the most according to claim 1, it is characterised in that described cable body (2) It is 20 core double-shielded cable, including internal layer core (2-1), void filler (2-2), internal shield (2-3), interior separation layer (2-4), outer layer core (2-5), outer separation layer (2-6), total screen layer (2-7), oversheath (2-8)；By 7 internal layer core (2- 1) with void filler (2-2) wrapped interior separation layer (2-4) after internal shield (2-3) weaves, it is uniformly distributed outside 13 outside it The most wrapped outer separation layer of layer line core (2-5) (2-6), then formed by extruding oversheath (2-8) after total screen layer (2-7) braiding.

Electrical prospecting cable probe adapter the most according to claim 1, it is characterised in that described tail end electrical connection Part (3) is a cylinder, including cable accessing port (4-1), base (4-2), upper cover (4-3), control circuit plate (4-5), aviation Socket (4-7), described cable body (2) is through cable accessing port (4-1) with control circuit plate (4-5), aviation socket (4-7) even Connecing, aviation socket (4-7) is used for connecting next section of cable probe adapter or terminator cap (6)；Control circuit plate (4-5) by 8 SI PO shift register IC1,8 be incorporated to go here and there out shift register IC2,8 select 1 analog switch IC3 and IC4,8 dial Dynamic switch SW1,8 diode D1～D8 and 8 resistance R1～R8 compositions.

Electrical prospecting cable probe adapter the most according to claim 1, it is characterised in that described probe electrical connection Part (4) includes metal top cover, insulating materials lower cover two parts, and described cable body (2) passes from the cable via (5-5) of upper cover And be fixed in internal thread (5-6) by two cable fixing parts, cable external shield connects and is screwed in upper cover Screw thread (5-7), internal shield (2-3) and an outer layer core (2-5) link to G end and the A end of probe in detecting circuit board (5-2), It is elastic tactile that described probe (5) is screwed in two on screw (5-1) screw-in short circuit probe in detecting circuit board (5-2) by the probe of lower cover Point；Probe in detecting circuit board (5-2) is made up of magnetic bead Z1, resilient contact SW2, electric capacity C1 and diode D9.

Electrical prospecting cable probe adapter the most according to claim 1, it is characterised in that described probe (5) is one Having the metal material thin bar of good electric conductivity, the nipple (7-1) of upper part is used for being connected with probe electrical connector (4), It is the easiest that the cone (7-3) of end portion can make detection bar insert earth, and middle (7-2) is slender cylinder.

Electrical prospecting cable probe adapter the most according to claim 1, it is characterised in that described terminator cap (6) be an impedance matching network being attached on tail end connector (3), including electric capacity C2, C3, C4, C5 and resistance R9, R10, R11。