CN201163293Y - Industrial frequency spark experiment machine - Google Patents
Industrial frequency spark experiment machine Download PDFInfo
- Publication number
- CN201163293Y CN201163293Y CNU2008200558874U CN200820055887U CN201163293Y CN 201163293 Y CN201163293 Y CN 201163293Y CN U2008200558874 U CNU2008200558874 U CN U2008200558874U CN 200820055887 U CN200820055887 U CN 200820055887U CN 201163293 Y CN201163293 Y CN 201163293Y
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- CN
- China
- Prior art keywords
- control circuit
- frequency spark
- power frequency
- spark tester
- circuit
- 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
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Abstract
The utility model relates to a power frequency spark tester comprising a control circuit. One end of the control circuit is connected with a power supply, and the other end of the control circuit is connected with an alarm display circuit. The control circuit comprises an AT89C2051 chip connected with display output, and an AT89C52 chip respectively connected with a CPU, serial communication, the input and output of a microprocessor and a PWM circuit. The power frequency spark tester has the advantages that: the power frequency spark tester is characterized in stably outputted high voltage and high detection sensitivity due to advanced technologies such as singlechip control, full digital display mode, etc.; the power frequency spark tester is also provided with interfaces of RS232, RS485, industrial field bus, etc. for easy connection with an industrial control computer system.
Description
Technical field
The utility model relates to a kind of power frequency spark tester, relates in particular to the control circuit of this power frequency spark tester.
Background technology
Power frequency spark tester is the special inspecting equipment of electric wire, cable insulation defective, and it has high stability, reliable complete detectability, and can use the electric wire of plurality of specifications extrude and the after-combustion production line on, detection is also write down the defective of cable.
As seen from Figure 1: the basic functional principle of power frequency spark tester is: (0 ~ 180V) power frequency supply is after high-tension transformer boosts adjustable low pressure, (0 ~ 15kV) delivers to test electrode with the power frequency high-tension electricity to produce test, when the cable of insulation defect passes through test electrode, it is breakdown and the flashing discharge, this discharge current triggers warning circuit work after circuit differentiate to be handled after testing.
The control circuit of power frequency spark machine adopts discrete component circuit mostly in the prior art, and relay control because the error of simulating signal causes that waveform distortion is big, be easy to produce false alarm, so its precision is low, and failure rate is higher.
Summary of the invention
The utility model technical issues that need to address have provided a kind of power frequency spark tester, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: control circuit; One end of described control circuit links to each other with power supply, the other end links to each other with the alarm indication circuit; Described control circuit comprises: a slice and show the AT89C2051 chip that output links to each other, the AT89C52 chip that a slice and CPU and serial communication, microprocessor input and output, pwm circuit link to each other respectively.
Compared with prior art, the beneficial effects of the utility model are: owing to adopt advanced technologies such as one-chip computer control, digital display mode, have characteristics such as the output high pressure is stable, detection sensitivity height; And be furnished with interfaces such as RS232, RS485 and industrial field bus, be convenient to be connected with the industrial computer system.
Description of drawings
Fig. 1 is the module map of prior art power frequency spark tester;
Fig. 2 is a module map of the present utility model;
Fig. 3 is the concrete module map of control circuit among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
By Fig. 2, Fig. 3 as seen: the utility model comprises: control circuit; One end of described control circuit links to each other with power supply, the other end links to each other with the alarm indication circuit; Described control circuit comprises: a slice and show the AT89C2051 chip that output links to each other, the AT89C52 chip that a slice and CPU and serial communication, microprocessor input and output, pwm circuit link to each other respectively.
AT89C52 is responsible for voltage-regulation and control, breakdown signal detection, counting and alerting signal output etc.The signal waveform that digital circuit produces is stable, can not produce false alarm.
Claims (1)
1. a power frequency spark tester comprises: control circuit; One end of described control circuit links to each other with power supply, the other end links to each other with the alarm indication circuit; It is characterized in that: described control circuit comprises: a slice and show the AT89C2051 chip that output links to each other, the AT89C52 chip that a slice and CPU and serial communication, microprocessor input and output, pwm circuit link to each other respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200558874U CN201163293Y (en) | 2008-03-04 | 2008-03-04 | Industrial frequency spark experiment machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200558874U CN201163293Y (en) | 2008-03-04 | 2008-03-04 | Industrial frequency spark experiment machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163293Y true CN201163293Y (en) | 2008-12-10 |
Family
ID=40184228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200558874U Expired - Fee Related CN201163293Y (en) | 2008-03-04 | 2008-03-04 | Industrial frequency spark experiment machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163293Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565136A (en) * | 2011-12-31 | 2012-07-11 | 国网电力科学研究院 | Switching detection method for surface defects and interlaminar defects of insulating tools and device using same |
| CN110152887A (en) * | 2019-04-30 | 2019-08-23 | 东南大学 | Constant-current type intermediate frequency dedusting power source spark flashover detection processing system based on FPGA |
-
2008
- 2008-03-04 CN CNU2008200558874U patent/CN201163293Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565136A (en) * | 2011-12-31 | 2012-07-11 | 国网电力科学研究院 | Switching detection method for surface defects and interlaminar defects of insulating tools and device using same |
| CN110152887A (en) * | 2019-04-30 | 2019-08-23 | 东南大学 | Constant-current type intermediate frequency dedusting power source spark flashover detection processing system based on FPGA |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20120304 |