CN202141772U - Seismic prospecting cable broken line point detector - Google Patents
Seismic prospecting cable broken line point detector Download PDFInfo
- Publication number
- CN202141772U CN202141772U CN201120232001U CN201120232001U CN202141772U CN 202141772 U CN202141772 U CN 202141772U CN 201120232001 U CN201120232001 U CN 201120232001U CN 201120232001 U CN201120232001 U CN 201120232001U CN 202141772 U CN202141772 U CN 202141772U
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- China
- Prior art keywords
- signal
- broken line
- seismic prospecting
- signals
- line point
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Abstract
The present utility model provides a seismic prospecting cable broken line point detector. The detector comprises a signal generator which comprises an isolation transformer for outputting AC signals; a signal receiver which comprises a receiving circuit for receiving the AC signals output by the isolation transformer, an amplification circuit for amplifying the AC signals received by the receiving circuit, and an earphone for listening to the AC signals; and the receiving circuit, the amplification circuit and the earphone are connected successively. In the detector, the signal generator is used for emitting AC signals, an electromagnetic field is generated when a cable is conducted, then corresponding signals can be received through the signal receiver; as no electromagnetic field exists in a broken line point, the corresponding signals can not be received by the signal receiver in the broken line point, thus the broken line point can be found, and the method is rapid, convenient and accurate.
Description
Technical field
The utility model relates to a kind of seismic prospecting cable break point detector.
Background technology
At present, the seismic prospecting cable protects rubber softer outward, when cable has break point, does not often have tangible wound, and the staff is difficult for finding when searching.Now also do not have special instrument detecting break point, have only and adopt manual work to detect, greatly like this reduced work efficiency, and, influence work quality, even cause the accident often because the difference of artificial judgment is carried out false judgment.
The utility model content
The technical matters that the utility model will solve provide a kind of simple in structure, easy to operate, detect accurately seismic prospecting cable break point detector efficiently of break point.
In order to address the above problem, the utility model provides a kind of seismic prospecting cable break point detector, comprising:
Signal generator, said signal generator comprises the isolating transformer of output AC signal;
Signal receiver; Said signal receiver comprise the AC signal that receives said isolating transformer output receiving circuit, amplify the amplifying circuit of the AC signal that said receiving circuit receives and be used to listen to the earphone of AC signal, said receiving circuit, amplifying circuit and earphone link to each other successively.
Further, the electromotive force of said isolating transformer obtains through the secondary induction.
Further, the AC signal frequency of said isolating transformer output is 50 hertz.
Further, said amplifying circuit is the tandem type amplifying circuit, comprises three triodes.
The utlity model has following advantage:
1, the utility model adopts signal generator to send AC signal; Generate an electromagnetic field during the cable conducting; Just can receive corresponding signal through signal receiver, the break point place does not have electromagnetic field, so signal receiver just can't be received corresponding signal at the break point place; Thereby find this break point, this method is efficient and convenient and accuracy is high.
2, the utility model is simple in structure, and is simple to operation quick, be easy to carry, and low preparation cost, dependability is high, is convenient to promote the use of.
Description of drawings
Be described further below in conjunction with the embodiment of accompanying drawing the utility model:
Fig. 1 shows a kind of seismic prospecting cable break point of the utility model detector structural representation.
Embodiment
As shown in Figure 1, the utility model comprises signal generator 1 and signal receiver 2.Wherein, signal generator 1 is used for the output AC signal; Signal receiver 2 is used to examine and picks up the AC signal that signal generator 1 sends, and amplifies output.
Signal generator 1 is used to send AC signal, and what send AC signal in the signal generator 1 in the utility model is isolating transformer 11.
The utility model adopts signal generator 1 to send AC signal; Generate an electromagnetic field during cable 3 conductings; Just can receive corresponding signal through signal receiver 2, the break point place does not have electromagnetic field, so signal receiver 2 just can't be received corresponding signal at the break point place; Thereby find this break point, this method is efficient and convenient and accuracy is high.
In the utility model, the electromotive force of isolating transformer 11 obtains through the secondary induction.Can't form the loop with the earth like this, can play the effect of isolating electric network source, therefore can prevent the contact, with the operator of protection cable maintenance.
In the utility model, the AC signal frequency of isolating transformer 11 outputs is 50 hertz.This is a normally used frequency, is convenient to obtain.
In the utility model, amplifying circuit 22 is the tandem type amplifying circuit, comprises three triodes.The AC signal that receives after three triodes amplify on earphone 23 sounding, be easy to listen to relevant information.In the utility model, receiving circuit 21 and amplifying circuit 22 are integrated on the chip, and form one and survey box 24, survey box 24 and earphone 23 and link to each other through earphone cord.During use, can conveniently hand the detection box and move, and wear earphone 23 simultaneously.
When using the utility model to carry out work, at first send 50 hz ac signals through signal generator 1, on respective cable 3, move and survey box 24, and listen to related sound through connecting the earphone 23 of surveying box 24.Along with surveying moving of box 24, it is noiseless to catch sight of earphone 23, surveys box 24 corresponding cable 3 positions this moment and is the break point place.The signal efficiency height is picked up in the utility model inspection, and accuracy can reach 3 centimetres.
The utility model is simple in structure, and is simple to operation quick, be easy to carry, and low preparation cost, dependability is high, is convenient to promote the use of.
In sum; More than be merely the preferred embodiment of the utility model; It is not the protection domain that is used to limit the utility model; Therefore, any modification of being done within all spirit and principles at the utility model, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. a seismic prospecting cable break point detector is characterized in that, comprising:
Signal generator, said signal generator comprises the isolating transformer of output AC signal;
Signal receiver; Said signal receiver comprise the AC signal that receives said isolating transformer output receiving circuit, amplify the amplifying circuit of the AC signal that said receiving circuit receives and be used to listen to the earphone of AC signal, said receiving circuit, amplifying circuit and earphone link to each other successively.
2. seismic prospecting cable break point detector as claimed in claim 1 is characterized in that: the electromotive force of said isolating transformer obtains through the secondary induction.
3. seismic prospecting cable break point detector as claimed in claim 1 is characterized in that: the AC signal frequency of said isolating transformer output is 50 hertz.
4. seismic prospecting cable break point detector as claimed in claim 1, it is characterized in that: said amplifying circuit is the tandem type amplifying circuit, comprises three triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232001U CN202141772U (en) | 2011-07-01 | 2011-07-01 | Seismic prospecting cable broken line point detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232001U CN202141772U (en) | 2011-07-01 | 2011-07-01 | Seismic prospecting cable broken line point detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141772U true CN202141772U (en) | 2012-02-08 |
Family
ID=45552827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120232001U Expired - Lifetime CN202141772U (en) | 2011-07-01 | 2011-07-01 | Seismic prospecting cable broken line point detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141772U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918739A (en) * | 2015-12-25 | 2017-07-04 | 苏州宝时得电动工具有限公司 | Broken wire detection system |
| CN107064713A (en) * | 2017-03-22 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of electric line broken string method of discrimination and system |
-
2011
- 2011-07-01 CN CN201120232001U patent/CN202141772U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918739A (en) * | 2015-12-25 | 2017-07-04 | 苏州宝时得电动工具有限公司 | Broken wire detection system |
| CN107064713A (en) * | 2017-03-22 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of electric line broken string method of discrimination and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |