CN205809000U - A kind of porcelain strut insulator Intelligent live crack detector - Google Patents
A kind of porcelain strut insulator Intelligent live crack detector Download PDFInfo
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- CN205809000U CN205809000U CN201620406623.3U CN201620406623U CN205809000U CN 205809000 U CN205809000 U CN 205809000U CN 201620406623 U CN201620406623 U CN 201620406623U CN 205809000 U CN205809000 U CN 205809000U
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Abstract
The utility model discloses a kind of porcelain strut insulator Intelligent live crack detector, including detection device and insulating bar, described detection device includes: the housing that removably connects with insulating bar, the emitting probe of the end away from described insulating bar being arranged on housing and the control circuit plate receiving probe, being arranged in housing, and described control circuit plate is provided with CPU, frequency radiating circuit, frequency reception circuit and temperature-compensation circuit；Frequency radiating circuit connects CPU and described emitting probe, and frequency reception circuit connects CPU and described reception probe, and wherein, temperature-compensation circuit includes being sequentially connected with: the A/D change-over circuit that temperature conversion circuit, amplifying circuit are connected with described CPU.This utility model is possible not only to realize the live detection of insulator, and is additionally arranged temperature-compensation circuit, efficiently reduces the impact that the sensor frequency in frequency reception circuit is measured by temperature, improves certainty of measurement.
Description
Technical field
This utility model relates to electrical network detection field, particularly relates to a kind of porcelain strut insulator Intelligent live flaw detection
Instrument.
Background technology
Support insulator is the important composition equipment of power plant and transformer station, is used in power system in a large number, rises
Support wire, chopper and high-voltage switch gear effect.Porcelain strut insulator is wherein essential elements, but
Aging and the inefficacy of pillar porcelain insulator is the process of a gradual change, needs to pinpoint the problems in time, occurs for this
A kind of can with the porcelain strut insulator Intelligent live crack detector of live detection.Sensing in this electrified defect detector
Device is to there is certain corresponding relation according to its resonant frequency and suffered pressure and work, when variations in temperature
Frequency can change, i.e. for identical pressure, if test environment temperature is different, and the resonance of sensor
Frequency also can be different, therefore can bring error to measurement.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, it is provided that a kind of
Porcelain strut insulator Intelligent live crack detector.
This utility model solves its technical problem and be the technical scheme is that a kind of porcelain strut insulator of structure
Intelligent live crack detector, including detection device and insulating bar, described detection device includes: removable with insulating bar
The housing that unloads connection, the emitting probe of the end away from described insulating bar being arranged on housing and receive probe,
The control circuit plate being arranged in housing, described control circuit plate is provided with CPU, frequency radiating circuit,
Frequency reception circuit and temperature-compensation circuit；Frequency radiating circuit connects CPU and described emitting probe, frequency
Receiving circuit and connect CPU and described reception probe, wherein, temperature-compensation circuit includes being sequentially connected with: temperature
The A/D change-over circuit that degree change-over circuit, amplifying circuit are connected with described CPU.
In porcelain strut insulator Intelligent live crack detector described in the utility model, described frequency reception circuit
Including a vibrating string type sensor, described temperature conversion circuit includes the temperature-sensitive electricity being encapsulated in vibrating string type sensor
Resistance and the constant current source being connected with described critesistor.
In porcelain strut insulator Intelligent live crack detector described in the utility model, described frequency radiating circuit
Including be sequentially connected with: wave filter, power amplifier, booster, vibrator, described wave filter is with described
CPU connects, and described vibrator is connected with described emitting probe.
In porcelain strut insulator Intelligent live crack detector described in the utility model, described frequency reception circuit
Including be sequentially connected with: the 2nd A/D change-over circuit, programmable amplifier, vibrating string type sensor, described second
A/D change-over circuit is connected with described CPU, and institute's vibrating string type sensor is connected with described reception probe.
In porcelain strut insulator Intelligent live crack detector described in the utility model, also set up in described housing
There is memorizer, buzzer and the USB interface being connected with described CPU.
In porcelain strut insulator Intelligent live crack detector described in the utility model, the bottom of described housing is also
It is provided with one to be connected with described CPU for the battery case installing power module, described power module.
In porcelain strut insulator Intelligent live crack detector described in the utility model, the end of described housing sets
Putting two connecting rods side by side, the end of two connecting rods is all connected with a probe cassette, and two probe cassettes are respectively
It is set in the emitting probe of correspondence or receives the end of probe.
Implement porcelain strut insulator Intelligent live crack detector of the present utility model, have the advantages that this
The electrified defect detector of utility model is possible not only to realize the live detection of insulator, and is additionally arranged temperature-compensating
Circuit, efficiently reduces the impact that the sensor frequency in frequency reception circuit is measured by temperature, improves
Certainty of measurement.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of porcelain strut insulator Intelligent live crack detector of the present utility model；
Fig. 2 is the circuit theory diagrams of porcelain strut insulator Intelligent live crack detector of the present utility model.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now compare attached
Figure describes detailed description of the invention of the present utility model in detail.
With reference to Fig. 1, it it is the structural representation of porcelain strut insulator Intelligent live crack detector of the present utility model.
Porcelain strut insulator Intelligent live crack detector of the present utility model includes: detection device and insulating bar, institute
State detection device to include: housing 1, emitting probe 6 and reception probe 7, control circuit plate.
One end of housing 1 removably connects with insulating bar, such as, can be threaded, snap lock
Connecting, concrete connected mode does not limit.
Control circuit plate is arranged in housing 1, and interlock circuit is connected with emitting probe 6 and reception probe 7.
Emitting probe 6 and reception probe 7 are arranged on another end away from described insulating bar of housing 1.
In Fig. 1, concrete: the end of described housing 1 arranges two connecting rods 4 side by side, two connecting rods
The end of 4 is all connected with a probe cassette 5, two probe cassettes 5 be respectively sleeved at correspondence emitting probe 6 or
Receive the end of probe 7.
With reference to Fig. 2, it is the circuit theory diagrams of porcelain strut insulator Intelligent live crack detector of the present utility model.
CPU, frequency radiating circuit 100, frequency reception circuit 200 it is provided with on described control circuit plate
With temperature-compensation circuit 300；Frequency radiating circuit 100 connects CPU and described emitting probe 6, and frequency connects
Receive circuit 200 and connect CPU and described reception probe 7.
Wherein, temperature-compensation circuit 300 includes being sequentially connected with: temperature conversion circuit, amplifying circuit and
The A/D change-over circuit that described CPU connects.Amplifying circuit is general voltage amplifier circuit, excellent
That selects can also include filtering shaping circuit.
Concrete:
Described frequency radiating circuit 100 includes being sequentially connected with: wave filter, power amplifier, booster,
Vibrator, described wave filter is connected with described CPU, and described vibrator is connected with described emitting probe 6.
Described frequency reception circuit 200 includes being sequentially connected with: the 2nd A/D change-over circuit, programmable amplifier,
Vibrating string type sensor, described 2nd A/D change-over circuit is connected with described CPU, institute's vibrating string type sensor and institute
State reception probe 7 to connect.
Described temperature conversion circuit include the critesistor that is encapsulated in vibrating string type sensor and with described heat
The constant current source that quick resistance connects.
Vibrating string type sensor is frequency type sensor, and its coil is single coil excitement and pick-up coil, this reality
Executing and use unicoil vibrating wire sensor in example, exciting and pick-up timesharing are carried out.After vibratory string shakes,
Removing accumulation signal, energized vibratory string produces resonance, converts thereof into sinusoidal signal by induction coil defeated
Going out, its output is millivolt level signal, and is decay, and the persistent period is usually no more than 1s.So this
The bright amplifying circuit devising frequency signal, is filtered amplification, shaping, obtains the signal induced
The square signal of standard.
Temperature compensation principle of the present utility model is: one critesistor of encapsulation in the sensor, passes through constant current
Power supply heat sensitive resistance provides constant current, then produces voltage drop at critesistor two ends, and this voltage passes through
Amplifying circuit enters an A/D change-over circuit, can convert thereof into digital signal, it is simple to CPU gathers, divides
Analysis and calculating, CPU can determine that the corresponding resistance value of critesistor, and the relation further according to temperature Yu resistance can
Obtain temperature value.Having reached stable sensor through overaging, its model is affected by temperature, as long as therefore
Also the temperature of sensor is measured, it become convenient substantially that it is carried out temperature-compensating, to carry while measured frequency
High measurement accuracy.
It addition, be additionally provided with memorizer, buzzer and the USB being connected with described CPU in described housing 1
Interface.The end connecting insulating bar of housing 1 is additionally provided with shift knob, SR, described USB connect
Mouthful, duty lamp and power supply indicator, described shift knob, SR, USB interface, work
Status lamp with power supply indicator respectively CPU with control circuit plate be connected.
This utility model applies oscillating load by emitting probe 6 to porcelain strut insulator, by receiving probe
7 frequency of vibration gathering porcelain strut insulator are also stored in inside detection device, it is possible to each porcelain of batch capture
The data of collection are also stored in memorizer by the frequency of vibration of support insulator, then pass through USB interface
Send the computer being provided with spectrum analysis program to and evaluate porcelain according to the rumble spectrum of porcelain strut insulator
The rigid of support insulator, it is achieved that quick, accurate and batch detection function.And can the most once
Property surface defect and the internal flaw of porcelain strut insulator are made thoroughly evaluating, during detection, not shadow
Ring normal function of supplying power, improve power of test and detection efficiency.
In conjunction with Fig. 1 and Fig. 2, the bottom of described housing 1 is additionally provided with one for the electricity installing power module
Pond box 2, described power module is connected with described CPU.It is provided with this near battery case 2 bottom housing 1
Buzzer, in Fig. 1,3 represent the installation site of buzzer.
When utilizing this utility model to carry out porcelain pillar insulator electrified carrying out flaw detection, testing staff is filled by detection
Encloser body 1 is on insulating bar, and the hand-held insulating bar of testing staff is by emitting probe 6 and the tip of reception probe 7
Vertically it is adjacent on the lower flange support plate of porcelain strut insulator to be measured, and keeps this state a period of time,
Detection device is started working under the CPU of control circuit plate controls, and completes whole test process: a side
Face CPU produces vibration signal, is filtered processing by wave filter, carries out signal amplification and boosting, control
Vibrator processed produces oscillating load；On the other hand the vibration of porcelain strut insulator is gathered by vibrating string type sensor
Frequency, generates after being digitized processing by signal amplifier and A/D change-over circuit to this frequency of vibration
Digital audio and video signals also is carried out storing in memory by digital audio and video signals, passes through temperature-compensation circuit simultaneously
300 temperature that can obtain vibrating string type sensor, compensate its model, the frequency that correction detects,
Improve certainty of measurement.Data in memorizer pass through USB interface and the calculating being provided with spectrum analysis program
Machine carries out off-line data transmission, is analyzed processing to the detection signal data received by computer, judges
This porcelain strut insulator whether existing defects.This utility model is achieving the charged of porcelain strut insulator crackle
While detection, improve certainty of measurement.
Above in conjunction with accompanying drawing, embodiment of the present utility model is described, but this utility model not office
Being limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically rather than to limit
Property, those of ordinary skill in the art is under enlightenment of the present utility model, without departing from this utility model ancestor
In the case of purport and scope of the claimed protection, it may also be made that a lot of form, it is new that these belong to this practicality
Within the protection of type.
Claims (7)
1. a porcelain strut insulator Intelligent live crack detector, it is characterised in that include detecting device with exhausted
Edge bar, described detection device includes: the housing (1) that removably connects with insulating bar, be arranged on housing (1)
The end away from described insulating bar emitting probe (6) and receive probe (7), be arranged on housing (1)
In control circuit plate, described control circuit plate is provided with CPU, frequency radiating circuit (100), frequently
Rate receives circuit (200) and temperature-compensation circuit (300)；Frequency radiating circuit (100) connects CPU
With described emitting probe (6), frequency reception circuit (200) connects CPU and described reception probe (7),
Wherein, temperature-compensation circuit (300) includes being sequentially connected with: temperature conversion circuit, amplifying circuit and
The A/D change-over circuit that described CPU connects.
Porcelain strut insulator Intelligent live crack detector the most according to claim 1, it is characterised in that
Described frequency reception circuit (200) includes that a vibrating string type sensor, described temperature conversion circuit include encapsulation
Critesistor in vibrating string type sensor and the constant current source being connected with described critesistor.
Porcelain strut insulator Intelligent live crack detector the most according to claim 1, it is characterised in that
Described frequency radiating circuit (100) includes being sequentially connected with: wave filter, power amplifier, booster,
Vibrator, described wave filter is connected with described CPU, and described vibrator is connected with described emitting probe (6).
Porcelain strut insulator Intelligent live crack detector the most according to claim 1, it is characterised in that
Described frequency reception circuit (200) includes being sequentially connected with: the 2nd A/D change-over circuit, programmable amplifier,
Vibrating string type sensor, described 2nd A/D change-over circuit is connected with described CPU, institute's vibrating string type sensor and institute
State reception probe (7) to connect.
Porcelain strut insulator Intelligent live crack detector the most according to claim 1, it is characterised in that
Memorizer, buzzer and the USB interface being connected with described CPU it is additionally provided with in described housing (1).
Porcelain strut insulator Intelligent live crack detector the most according to claim 1, it is characterised in that
The bottom of described housing (1) is additionally provided with one for the battery case (2) installing power module, described electricity
Source module is connected with described CPU.
Porcelain strut insulator Intelligent live crack detector the most according to claim 1, it is characterised in that
The end of described housing (1) arranges two connecting rods (4) side by side, and the end of two connecting rods (4) is equal
Connecting a probe cassette (5), two probe cassettes (5) are respectively sleeved at the emitting probe (6) of correspondence or connect
Receive the end of probe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406623.3U CN205809000U (en) | 2016-05-06 | 2016-05-06 | A kind of porcelain strut insulator Intelligent live crack detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406623.3U CN205809000U (en) | 2016-05-06 | 2016-05-06 | A kind of porcelain strut insulator Intelligent live crack detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205809000U true CN205809000U (en) | 2016-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620406623.3U Active CN205809000U (en) | 2016-05-06 | 2016-05-06 | A kind of porcelain strut insulator Intelligent live crack detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205809000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680873A (en) * | 2017-10-31 | 2018-02-09 | 国网山西省电力公司临汾供电公司 | A kind of device of Ultrasonic Nondestructive vacuum tube vacuum-degree |
-
2016
- 2016-05-06 CN CN201620406623.3U patent/CN205809000U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680873A (en) * | 2017-10-31 | 2018-02-09 | 国网山西省电力公司临汾供电公司 | A kind of device of Ultrasonic Nondestructive vacuum tube vacuum-degree |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |