CN2872385Y - Identifier of underground cable path - Google Patents
Identifier of underground cable path Download PDFInfo
- Publication number
- CN2872385Y CN2872385Y CNU2006200784950U CN200620078495U CN2872385Y CN 2872385 Y CN2872385 Y CN 2872385Y CN U2006200784950 U CNU2006200784950 U CN U2006200784950U CN 200620078495 U CN200620078495 U CN 200620078495U CN 2872385 Y CN2872385 Y CN 2872385Y
- Authority
- CN
- China
- Prior art keywords
- output
- cable
- signal source
- path
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses an identification device for buried cable line, including a signal source equipped with a signal output line and a receiver equipped with a sounding rod and an earphone. The output line of signal source is connected with a sensor or directly connected with an uncharged cable core. The sensor is not directly connected with the cable core, but adds alternating signal sense generated by the signal source on the cable core of a power cable. The utility model adds the alternating signal sense generated by the signal source on the cable or the cable of two unknown tips through the sensor, so that the cable sense to be found or identified generates electromagnetic waves, the buried cable could be judged and identified through the receiver, particularly the trend and depth of charged traveling cable. The receiver of the utility model is provided with four kinds of sounding rods with different received frequencies. The utility model does not only separate 1kHz sounding rod from 15kHz sounding rod, further improving anti-interference performance, but also adds 50Hz and 35kHz sounding rods, extending the application range.
Description
Technical field
The utility model relates to a kind of recognition device of underground metallic tubes thread path, the recognition device in particularly a kind of buried power cable path.
Background technology
Traditional power cable path instrument comprises sender and has the receiver of induction probe and earphone, its using method is in underground cable inoperative situation, be under the power down mode, directly be electrically connected at an end of cable output line with cable core by sender, by cable core being applied the AC measurment signal, around the path of cable, just can produce alternating electromagnetism ripple clocklike, pass through the induction probe received signal of receiver on the ground, and judge the trend and the depth of burying of cable by the power of earphone analysis cable width of cloth radio magnetic wave.If but: 1) when the cable charging operation, need search and discern the path of operation cable; 2) when the two ends of not knowing cable, when not knowing that more cable is whether charged, need be under the situation about exposing or known a certain section cable global path is searched and discerned, this path instrument directly applies the shortcoming that the AC measurment signal can't carry out with regard to existing to cable core.
Summary of the invention
The purpose of this utility model is improved the defective that existing underground cable path instrument can not charged work, and a kind of multi-functional underground cable Path Recognition device is provided.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of underground cable Path Recognition device comprises the signal source that is provided with output line, the receiver that is provided with replaceable probe and earphone, and the output line of described signal source connects inductor; Described replaceable probe is provided with four at least.
In the such scheme, signal source comprises power circuit, the intermittent sine wave generator that is connected with frequency selective network output and automatic gain controller, the power output circuit that is connected with the output of automatic gain controller, the output plus terminal of power output circuit is connected to output line and feedback is connected to the output indicating circuit, and the output negative terminal of power output circuit is connected to output line by the sampling holding circuit; Output line connects inductor or is connected directly to not on the live electric cable heart yearn; The output feedback of sampling holding circuit is connected to intermittent sine wave generator and automatic gain controller; The input of power circuit connects alternating current 220V voltage, and output is connected to each element circuit.Described inductor be shaped as pincer, comprise single pincerlike and to pincer, perhaps analogous shape such as banded shape.Described signal source output frequency has 50Hz, 1kHz, 15kHz and 35kHz at least, and the corresponding receive frequency of replaceable probe is respectively 50Hz, 1kHz, 15kHz and 35kHz.
The utility model compared with prior art, its beneficial effect is, by an inductor, the alternating signal induction that signal source is produced is added on the cable of cable or unknown two ends, the cable induction that must search or discern is generated electromagnetic waves, thereby can judge by receiver and identify underground cable, trend, the degree of depth of particularly charged operation cable.Existing Path Recognition instrument does not have inductor, and its receiver has only the probe of a compatible 1kHz, 15kHz frequency, thus can only search not charged and know the cable of termination, and can't solve the interference problem between 1kHz, the 15kHz frequency.The utility model receiver has the replaceable probe of 50Hz, 1kHz, 15kHz, 35kHz receive frequency, not only the probe with 1kHz, 15kHz separates, further improve anti-interference, and the probe that has increased 50Hz, 35kHz has further enlarged range of application.
In addition, the measuring-signal of existing sender is to regulate the output size manually, manual adjustments tend to cause the overload or output signal too small, work efficiency is descended, very to finding cable, the exportable full-automatic gain control signal of signal source of the present utility model can solve this phenomenon fully, has significantly improved work efficiency.
Description of drawings
Fig. 1 is the utility model apparatus structure and the user mode on the underground cable of known termination.
Fig. 2 is the utility model signal source circuit structured flowchart.
Fig. 3 is the utility model acceptor circuit structured flowchart.
Fig. 4 is the circuit theory diagrams of interrupted sine-wave producer and automatic gain controller among Fig. 1.
Fig. 5 is the schematic diagram that the utility model device is surveyed the underground cable path.
Fig. 6 is the schematic diagram that the utility model device is surveyed the underground cable degree of depth.
Fig. 7 is the user mode figure of the utility model on the underground cable of unknown termination.
Fig. 8 is the user mode figure of the utility model at the underground cable exposed point.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail:
As shown in Figure 1, the recognition device in a kind of underground cable path comprises the signal source I that is provided with alternating signal output line 8, the receiver II that is provided with replaceable probe 10 and earphone 20; The output line 8 of signal source I connects inductor 9, perhaps directly connects on the uncharged cable core V, and inductor 9 is sensed alternating signal on the buried power cable III; Transmission frequency according to signal source I, receiver II is provided with four replaceable probes 10, it is accepted frequency and is respectively 50Hz, 1KHz, 15KHz and 35KHz, replaceable probe 10 is handled the back by earphone 20 outputs with the different frequency signals that receives, and accurately judges the path and the degree of depth of power cable III by analyzing earphone sound.In the such scheme, inductor 9 be shaped as pincer, comprise single pincer, to pincer, can certainly be analogous shapes such as band shape.Fig. 1 also shows a kind of user mode of the utility model on known termination operation cable, utilize inductor 9 by cable core V the alternating signal induction that path signal source I produces to be added on the charged power cable III at the hydraucone of cable, make the power cable III induction of charging operation generate electromagnetic waves, thereby can judge the trend and the degree of depth that identifies underground cable by receiver II.
As shown in Figure 2, signal source I comprises power circuit 1, the intermittent sine wave generator 3 that is connected with frequency selection 2 outputs and automatic gain controller 4, the power output 7 that is connected with the output of automatic gain controller 4, the output plus terminal of power output 7 is connected to output line 8 and feedback is connected to output indication 6, and the output negative terminal of power output 7 is connected to output line 8 by sampling holding circuit 5; Output line 8 connects inductors 9 or is connected directly to not on the live electric cable heart yearn V; The output feedback of sampling protection 5 is connected to intermittent sine wave generator 3 and automatic gain controller 4; The input of power circuit 1 connects alternating current 220V voltage, and output connects each element circuit.
When connecting AC220V power circuit 1, signal source I will give each circuit power distribution automatically, select 2 can select required frequency by frequency, frequency range has 50Hz, 1KHz, 15KHz and 35KHz, automatically produce the correspondent frequency signal by intermittent sine wave generator 3 and automatic gain controller 4, and Automatic Control power is exported 7 output size under the cooperation of sampling protection 5 feedback signals, thereby reaches the full-automatic coupling of output impedance, exports indication by output indication 6 simultaneously; Output line 8 output signals are to inductor 9 or directly to live electric cable heart yearn V not.
As shown in Figure 3, receiver II comprises battery 21, replaceable probe 10, the input circuit 11 that is connected with replaceable probe 10, the two-stage amplifying circuit that is connected with input circuit 11: amplify one 12 and amplify 2 14, amplify 1 and amplify 2 14 between an attenuator circuit 13 is set, amplify that 2 14 output connects digital filtering 15 and frequency selects 16, frequency is selected 16 output connection amplification demodulator 17, the output of amplification demodulator 17 connects audio oscillation 18 again and power exports 19 to earphone 20, and battery 21 provides direct supply for each element circuit.
Receiver II is after battery 21 is connected, send the sinusoidal signal of characteristic frequency by the replaceable probe 10 received signal source I of different frequency, be sent to amplification 1 by input circuit 11, amplify 1 and pass through attenuator circuit 13 again behind the amplifying signal for the first time, undesired signal attenuated by amplifying 2 14 again carry out amplification second time, received signal relative mass at this moment is just much better.After digital filtering 15 will amplify 2 14 amplifying signal digital filterings under the cooperation of frequency selection 16, deliver to amplification demodulator 17, after amplifying also detection for the third time, by audio oscillation 18 vibration back output audio signals, by being transferred to earphone 20 for testing staff's analysis and judgement after the sound signal amplification of power output 19 with high-quality.
As shown in Figure 4; intermittent sine wave generator 3 and automatic gain controller 4 among the signal source I comprise gate circuit JP1; 8 pin of gate circuit JP1 connect the base stage of triode Q1 by resistance R 3; 11 pin of gate circuit JP1 connect the trigger pip of sampling protection 5; 10 pin of the collector contiguous function generator JP2 of triode Q1 and the output of frequency selective network 2; 3 pin of function generator JP2 connect the base stage of triode Q2 by potentiometer RP3 and capacitor C2; the collector of triode Q2 is connected to power output circuit 7 by capacitor C 3 and potentiometer RP4, and the emitter of triode Q2 is by diode D2; D3 accesses the output of sample protection 5.Gate circuit JP1 can adopt 4011 cake cores, and function generator JP2 can adopt 3038 cake cores.
When sampling protection 5 trigger pip of 11 pin to gate circuit JP1; gate circuit JP1 will be by square wave of resistance R 3 outputs; amplify the back is transferred to function generator JP2 by collector 10 pin through triode Q1; function generator JP2 exports the base stage of a sine wave to triode Q2 by 3 pin by capacitor C2 after producing signal, amplifies after collector and capacitor C3 output to power output 7 through triode Q2.Existing sender is to adopt Sheffer stroke gate to form the LC oscillator, and this oscillator is subjected to extraneous thermal effect bigger, thereby output frequency stability is relatively poor.The utility model adopts function generator JP2 circuit to solve this phenomenon fully.The height of size decision resistance R 10 both end voltage of sampled signal is regulated the enlargement factor of triode Q2 automatically by the height of resistance R 10 both end voltage, thereby is exported full-automatic gain control sinusoidal signal.
As shown in Figure 5, the utility model in the principle of surveying the underground cable path is, by inductor 9 alternating signal is sensed on the charged power cable III, regulate under the constant situation in receiver II volume, when probe 10 by a point when move on both sides, are ascending variations by a to the volume of the position earphone 20 of b or c; By b to d or c to the process of d in the volume of earphone 20 be descending variation up to disappearance, this is far away more because of distance power cable III, electromagnetic radiation as waves VI intensity is more little, so earphone 20 volumes are just more little.Like this, that is to say between maximum 2 of the volume of earphone 20, volume smallest point a be exactly power cable III directly over, the line that such point is linked to be is exactly the path of power cable III.By a to b or c, the ascending variation of earphone 20 volumes is because electromagnetic radiation as waves VI intensity is the strongest between b, c, but a point just power cable III directly over, when probe 10 is vertical with ground IV, just vertical with electromagnetic radiation as waves VI, magnetic flux by probe 10 is little, so earphone 20 volumes are just little; And when the position of b and c, just probe 10 and electromagnetic radiation as waves VI angle at 45 are big by the magnetic flux of probe 10, so earphone 20 volumes are just big.
As shown in Figure 6, the utility model is basic identical in the principle of the principle of surveying the underground cable degree of depth and detective path, behind the path of having determined power cable III, determine its degree of depth be with probe 10 sideling with ground IV angle at 45, the path of vertical power cable III is outwards walked, look for the volume minimum between maximum 2 of earphone 20 volumes, just by a to b, utilize the principle of isosceles right triangle can calculate the depth of burying (H=L) of power cable III, the analysis of volume is the same with Fig. 5.
As shown in Figure 7, the utility model is in the another kind of concrete user mode of unknown tip cable detection.At only knowing that global path will be searched in a certain section direct-buried cable path and whether identification is charged, utilize the inductor 9 of apparatus of the present invention, directly over known segment cable ground IV, the alternating signal that signal source I produces is added on the power cable III by electromagnetic radiation, the power cable III induction that must search is generated electromagnetic waves, thereby can judge that identifying it buries the trend and the degree of depth underground by receiver II, and can judge whether cable is charged by the probe 10 of 50Hz receive frequency.
As shown in Figure 8, the utility model is in another behaviour in service of cable exposed point.At only knowing that a certain section exposure cable will be searched global path and whether identification is charged, can utilize the pincerlike inductor 9 of apparatus of the present invention, by known exposed point power cable III the alternating signal that path signal source I produces is added on the power cable III, the power cable III induction that must search is generated electromagnetic waves, thereby can judge by receiver II and identify the trend and the degree of depth of burying underground, and can judge whether cable is charged by the probe 10 of 50Hz receive frequency.
Claims (5)
1. the recognition device in a underground cable path, comprise the receiver (II) that is provided with earphone (20), it is characterized in that, this device also comprises the signal source (I) that is provided with output line (8), the output line (8) of described signal source (I) connects inductor (9), and described receiver (II) is provided with at least four replaceable probes (10).
2. the recognition device in underground cable according to claim 1 path, it is characterized in that, described signal source (I) comprises power circuit (1), the intermittent sine wave generator (3) that is connected with frequency selection (2) output and automatic gain controller (4), the power output (7) that is connected with the output of automatic gain controller (4), the output plus terminal of power output (7) is connected to output line (8) and feedback is connected to output indication (6), and the output negative terminal of power output (7) is connected to output line (8) by sampling protection (5); Output line (8) connects inductor (9) or is connected directly to not live electric cable heart yearn (V); The output feedback of sampling protection (5) is connected to intermittent sine wave generator (3) and automatic gain controller (4); The input of power circuit (1) connects alternating current 220V voltage, and output is connected to each element circuit.
3. the recognition device in underground cable according to claim 1 path is characterized in that, described inductor (9) be shaped as pincer, comprise single pincerlike or to pincer, perhaps banded shape.
4. the recognition device in underground cable according to claim 1 and 2 path is characterized in that, the output frequency of described signal source (I) has 50Hz, 1kHz, 15kHz and 35kHz at least.
5. the recognition device in underground cable according to claim 1 path is characterized in that, the receive frequency of described replaceable probe (10) is respectively 50Hz, 1kHz, 15kHz and 35kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200784950U CN2872385Y (en) | 2006-03-02 | 2006-03-02 | Identifier of underground cable path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200784950U CN2872385Y (en) | 2006-03-02 | 2006-03-02 | Identifier of underground cable path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872385Y true CN2872385Y (en) | 2007-02-21 |
Family
ID=37740734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200784950U Expired - Fee Related CN2872385Y (en) | 2006-03-02 | 2006-03-02 | Identifier of underground cable path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872385Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520219A (en) * | 2011-12-15 | 2012-06-27 | 西安四方机电有限责任公司 | Novel path signal source used for detecting power cable |
| CN102520453A (en) * | 2011-12-15 | 2012-06-27 | 西安四方机电有限责任公司 | Method used for searching path of live power cable |
| CN103163561A (en) * | 2013-03-25 | 2013-06-19 | 上海铁新地理信息有限公司 | Cable path electriferous probing method and device |
| CN109031426A (en) * | 2018-07-31 | 2018-12-18 | 广东电网有限责任公司 | A kind of high-tension cable electrification path detection circuit and detection method |
| CN110764026A (en) * | 2019-10-31 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Railway signal in-use cable core wire application identification system based on signal source excitation |
| CN111679314A (en) * | 2020-06-19 | 2020-09-18 | 深圳成智达科技有限公司 | Intelligent network line patrol instrument |
| CN111897017A (en) * | 2020-08-24 | 2020-11-06 | 国网山东省电力公司滨州市沾化区供电公司 | Buried cable path detection device |
| CN112817050A (en) * | 2021-01-13 | 2021-05-18 | 陕西奇力达电子科技有限公司 | Transformer substation cable path detection device and method |
| CN113514732A (en) * | 2021-07-30 | 2021-10-19 | 华能东营河口风力发电有限公司 | Long cable line fault point searching method |
| CN113568054A (en) * | 2021-08-19 | 2021-10-29 | 海南电网有限责任公司文昌供电局 | Buried cable searching device and method |
-
2006
- 2006-03-02 CN CNU2006200784950U patent/CN2872385Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520219A (en) * | 2011-12-15 | 2012-06-27 | 西安四方机电有限责任公司 | Novel path signal source used for detecting power cable |
| CN102520453A (en) * | 2011-12-15 | 2012-06-27 | 西安四方机电有限责任公司 | Method used for searching path of live power cable |
| CN102520219B (en) * | 2011-12-15 | 2014-01-29 | 西安四方机电有限责任公司 | Novel path signal source used for detecting power cable |
| CN102520453B (en) * | 2011-12-15 | 2014-04-02 | 西安四方机电有限责任公司 | Method used for searching path of live power cable |
| CN103163561A (en) * | 2013-03-25 | 2013-06-19 | 上海铁新地理信息有限公司 | Cable path electriferous probing method and device |
| CN109031426A (en) * | 2018-07-31 | 2018-12-18 | 广东电网有限责任公司 | A kind of high-tension cable electrification path detection circuit and detection method |
| CN110764026A (en) * | 2019-10-31 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Railway signal in-use cable core wire application identification system based on signal source excitation |
| CN111679314A (en) * | 2020-06-19 | 2020-09-18 | 深圳成智达科技有限公司 | Intelligent network line patrol instrument |
| CN111897017A (en) * | 2020-08-24 | 2020-11-06 | 国网山东省电力公司滨州市沾化区供电公司 | Buried cable path detection device |
| CN112817050A (en) * | 2021-01-13 | 2021-05-18 | 陕西奇力达电子科技有限公司 | Transformer substation cable path detection device and method |
| CN113514732A (en) * | 2021-07-30 | 2021-10-19 | 华能东营河口风力发电有限公司 | Long cable line fault point searching method |
| CN113568054A (en) * | 2021-08-19 | 2021-10-29 | 海南电网有限责任公司文昌供电局 | Buried cable searching device and method |
| CN113568054B (en) * | 2021-08-19 | 2022-06-17 | 海南电网有限责任公司文昌供电局 | Buried cable searching device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2872385Y (en) | Identifier of underground cable path | |
| CN106532982B (en) | A kind of radio energy transmission system and load identification method loading online recognition | |
| CN201673231U (en) | Fault testing apparatus of cable or pipeline | |
| CN109444673A (en) | A kind of bunch of cables injection conducted susceptibility test macro and method | |
| CN202583390U (en) | Device capable of searching fault point of cable or pipeline | |
| CN113671296A (en) | Platform district discernment appearance | |
| CN105911430A (en) | Distribution network grounding grid corrosion state detection system | |
| CN100337126C (en) | Method and apparatus for judging between right and wrong tracking and discriminating pipeline in metal pipeline detection | |
| CN111521920A (en) | Photoelectric combined detection system and detection method for crosslinked polyethylene micro-discharge | |
| CN102540011A (en) | Fault point intellectualized diagnosis and repairing method for geothermal cable and device | |
| CN211263803U (en) | Grounding grid topological structure measuring device with wireless transmission function | |
| CN109581542B (en) | Substation grounding grid buried depth detection system and method based on induction apparent magnetic impedance method | |
| CN210376520U (en) | Multi-frequency scanning tower grounding resistance measuring device | |
| CN110594596B (en) | Water pipe network leakage detection circuit | |
| CN108287048A (en) | It is a kind of to study test method of the transformer pressing force to winding vibration effect | |
| US20230064933A1 (en) | Wireless monitoring system for coal-gangue mixing ratio based on non-hermite technology | |
| CN206420432U (en) | A kind of nondestructive testing instrument of the protective layer thickness based on C8051 single-chip microcomputers | |
| CN209878912U (en) | Grounding grid signal detection system | |
| CN215116609U (en) | Convenient cable run local discharge signal collector | |
| CN209296960U (en) | A kind of grounding net of transformer substation buried depth detection system based on induction view magnetoimpedance method | |
| CN111290032B (en) | Electromagnetic-based stratum metal intelligent recognition device and recognition method | |
| CN103792584B (en) | Engine commutator metal reinforced circle detector and detection method thereof and application apparatus | |
| CN112730990A (en) | Large-scale grounding grid impedance testing arrangement | |
| CN112748180A (en) | Pantograph detection device for high-speed rail vehicle | |
| CN219245664U (en) | Structure capable of detecting self-healing performance of capacitor at subtle level |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20150302 |
|
| EXPY | Termination of patent right or utility model |