CN207675833U - Cable harmonic detecting is popped one's head in - Google Patents
Cable harmonic detecting is popped one's head in Download PDFInfo
- Publication number
- CN207675833U CN207675833U CN201820025897.7U CN201820025897U CN207675833U CN 207675833 U CN207675833 U CN 207675833U CN 201820025897 U CN201820025897 U CN 201820025897U CN 207675833 U CN207675833 U CN 207675833U
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- Prior art keywords
- cable
- probe
- harmonic detecting
- filter
- electrically connected
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- 239000000523 sample Substances 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000008054 signal transmission Effects 0.000 claims abstract description 3
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 3
- 238000013523 data management Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010291 electrical method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a kind of cable harmonic detecting probe, for the state of detection cable in a non-contact manner in the state of not powering off.The cable harmonic detecting probe will detect signal transmission to data processing system by probe connector.The cable harmonic detecting is popped one's head in：Probing shell, probe circuit plate, probe cable and probe connector.Probing shell is used for testing staff's hand-held operation.Probe circuit plate is packaged in probing shell.Probe circuit plate includes magnetic sensing chip, programmable amplifier and filter.Probe cable is electrically connected with the filter, the transmission of the detection signal for filter output.Probe connector is electrically connected with probe cable and the data processing system, and the detection signal of probe cable transmission by probe connector and then is transmitted to the data processing system.Cable harmonic detecting probe can in the state of not powering off by Magnetic Sensor the non-contactly and rapidly and accurately state of detection cable.
Description
Technical field
The utility model is related to power cable detection field, more particularly to a kind of cable harmonic detecting probe.
Background technology
Power cable by electricity, heat, machinery and environment combined influence can slowly insulation ag(e)ing, operational reliability decline,
Breakdown accident can be caused when serious.Cable fault caused by order to detect a variety of causes, existing following cable detection technology：It is classical
Bridge method；Time domain traveling wave bounce technique；Restore voltage method；Isothermal relaxation current method；Tan δ detection methods；Shelf depreciation method；Entirety is put
Electrical method；DC leakage current detection method；Insulate resistance to platen press etc..
Existing power cable detection method, exist detection delay, the defect that cannot clarify a diagnosis or location of fault and type,
Detection process damages cable, the detection that has a power failure the limitations such as is made troubles to user.
The information for being disclosed in the background technology part is merely intended to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of cable harmonic detecting probes, are used for non-in the state of not powering off
The state of contact and rapidly and accurately detection cable.
To achieve the above object, the utility model provides a kind of cable harmonic detecting probe, in the shape not powered off
The state of detection cable in a non-contact manner under state.The cable harmonic detecting probe will detect signal transmission by probe connector
To data processing system.The cable harmonic detecting is popped one's head in：Probing shell, probe circuit plate, probe cable and probe
Connector.Probing shell is used for testing staff's hand-held operation.Probe circuit plate is packaged in probing shell.Probe circuit plate includes
Magnetic sensing chip, programmable amplifier and filter.Probe cable is electrically connected with the filter, defeated for the filter
The transmission of the detection signal gone out.Probe connector is electrically connected with probe cable and the data processing system, probe cable
The detection signal of transmission is by probe connector and then is transmitted to the data processing system.
Preferably, in above-mentioned technical proposal, the magnetic sensing chip is used for the magnetic field letter of the electric current generation in detection cable
Number.
Preferably, in above-mentioned technical proposal, the programmable amplifier is electrically connected with the magnetic sensing chip, to described
The output signal of magnetic sensing chip carries out programmable amplification.
Preferably, in above-mentioned technical proposal, the programmable amplifier is electrically connected with the magnetic sensing chip, to described
The output signal of magnetic sensing chip carries out programmable amplification.
Compared with prior art, the utility model has the advantages that：
Cable harmonic detecting probe can be in the state of not having a power failure, and fanout free region contactless by Magnetic Sensor detects
The magnetic field that electric current generates coordinates current harmonics Data Management Analysis system, can accurately analyze the operation shape of cable real-time
State, the insulating layer for assessing cable, the state of protective layer and shielded layer, the residue of the quality and prediction cable of assessing cable connector
Service life.
Description of the drawings
Fig. 1 is the structural schematic diagram popped one's head according to the cable harmonic detecting of one embodiment of the utility model.
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
Cable harmonic detecting probe can be contactless by Magnetic Sensor and harmlessly examine in the state of not having a power failure
The magnetic field that electric current generates is surveyed, and then carries out the amplification of magnetic field signal by programmable amplifier, further filter will amplify
Rear signal carries out noise filtering, eventually by probe cable and probe connector transmit a signal to data processing system into
Row analysis, analysis include：Analyze the operating status of cable, the insulating layer for assessing cable, the state of protective layer and shielded layer, assessment
The quality of cable connector and the remaining life for predicting cable.
Fig. 1 is the structural schematic diagram popped one's head according to the cable harmonic detecting of one embodiment of the utility model.Such as Fig. 1 institutes
Show, includes according to the cable harmonic detecting of the preferred embodiments of the present invention probe：Probe circuit plate 11, probing shell 12,
Probe cable 13 and probe connector 14.
Probe circuit plate 11 is packaged in probing shell 12.Probe circuit plate 11 includes magnetic sensing chip 11a, may be programmed and put
The magnetic field signal that the electric current that big device 11b and filter 11c, magnetic sensing chip 11a are used in detection cable generates.It is described programmable
The amplifier 11b and magnetic sensing chip 11a is electrically connected, according to the output signal size of the magnetic sensing chip 11a to institute
The output signal for stating magnetic sensing chip 11a carries out programmable amplification.The filter 11c and programmable amplifier 11b electricity
Property connection, for filtering the noise signal in the programmable amplifier 11b output signals.
Probing shell 12 is for protecting the probe circuit plate 11 and being convenient for testing staff's hand-held operation.
The probe cable 13 and filter 11c is electrically connected, and for the transmission of the detection signal, probe cable uses
Flexible cable with shielded layer.
Probe connector 14 is connected with the probe cable 13, is passed the detection signal by the probe cable 13
Transport to the data processing system.
In a preferred embodiment, the working characteristics of the cable harmonic detecting probe is as follows：Detect harmonic current
Bandwidth is 100kHz；Linear magnetic field detection range [- 80Oe, 80Oe]；Operating voltage+5V ± 0.5V；Signal output voltage [0V,
5V]；- 40 DEG C~+85 DEG C of operating temperature.
Cable harmonic detecting probe can be contactless by Magnetic Sensor, harmlessly in the state of not having a power failure
The magnetic field that electric current generates is detected, current harmonics Data Management Analysis system is coordinated, it can be rapidly and accurately to the operating status of cable
It is analyzed, assesses the insulating layer of cable, the state of protective layer and shielded layer, the quality of cable connector predicts the residue of cable
Service life.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
Many change and variations.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (4)
- It is described for the state of detection cable in a non-contact manner in the state of not powering off 1. a kind of cable harmonic detecting probe Cable harmonic detecting probe will detect signal transmission to data processing system by probe connector, which is characterized in that the electricity Cable harmonic detecting is popped one's head in：Probing shell is used for testing staff's hand-held operation,Probe circuit plate, is packaged in probing shell, and the probe circuit plate includes magnetic sensing chip, programmable amplifier and filter Wave device,Probe cable is electrically connected with the filter, the transmission of the detection signal for filter output, andProbe connector is electrically connected with the probe cable and the data processing system, the probe cable transmission Detection signal is by probe connector and then is transmitted to the data processing system.
- 2. cable harmonic detecting probe according to claim 1, which is characterized in that the magnetic sensing chip is for detecting electricity The magnetic field signal that electric current in cable generates.
- 3. cable harmonic detecting probe according to claim 1, which is characterized in that the programmable amplifier and the magnetic Sensing chip is electrically connected, and programmable amplification is carried out to the output signal of the magnetic sensing chip.
- 4. cable harmonic detecting probe according to claim 1, which is characterized in that the filter is put with described may be programmed Big device is electrically connected, for filtering the noise signal in the programmable amplifier output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820025897.7U CN207675833U (en) | 2018-01-08 | 2018-01-08 | Cable harmonic detecting is popped one's head in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820025897.7U CN207675833U (en) | 2018-01-08 | 2018-01-08 | Cable harmonic detecting is popped one's head in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675833U true CN207675833U (en) | 2018-07-31 |
Family
ID=62972812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820025897.7U Active CN207675833U (en) | 2018-01-08 | 2018-01-08 | Cable harmonic detecting is popped one's head in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675833U (en) |
-
2018
- 2018-01-08 CN CN201820025897.7U patent/CN207675833U/en active Active
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