CN101526579A - Power frequency spark tester - Google Patents
Power frequency spark tester Download PDFInfo
- Publication number
- CN101526579A CN101526579A CN200810034186A CN200810034186A CN101526579A CN 101526579 A CN101526579 A CN 101526579A CN 200810034186 A CN200810034186 A CN 200810034186A CN 200810034186 A CN200810034186 A CN 200810034186A CN 101526579 A CN101526579 A CN 101526579A
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- China
- Prior art keywords
- control circuit
- power frequency
- tester
- frequency spark
- circuit
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- 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.)
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Abstract
The invention relates to a power frequency spark tester. The tester comprises a control circuit, wherein one end of the control circuit is connected with a power supply; the other end of the control circuit is connected with an alarm display circuit; and the control circuit comprises an AT89C2051 chip connected with display output, and an AT89C52 chip which is connected with a CPU, serial communication, input and output of a microprocessor and a PWM circuit respectively. The power frequency spark tester has the advantages that as singlechip computer control, an all-digital display mode and other advanced technology are adopted, the tester has the characteristics of stable output high voltage, high test sensibility and the like; and RS232, RS485, an industrial field bus and other interfaces are arranged, the power frequency spark tester can be conveniently connected with an industrial control computer system.
Description
Technical field
The present invention relates to a kind of power frequency spark tester, relate 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 technical issues that need to address of the present invention 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 present invention is achieved by the following technical solutions:
The present invention includes: 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 invention has the beneficial effects as follows:, have characteristics such as the output high pressure is stable, detection sensitivity height owing to adopt advanced technologies such as one-chip computer control, digital display mode; 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 invention;
Fig. 3 is the concrete module map of control circuit among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
By Fig. 2, Fig. 3 as seen: the present invention includes: 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 |
|---|---|---|---|
| CN200810034186A CN101526579A (en) | 2008-03-04 | 2008-03-04 | Power frequency spark tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810034186A CN101526579A (en) | 2008-03-04 | 2008-03-04 | Power frequency spark tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101526579A true CN101526579A (en) | 2009-09-09 |
Family
ID=41094547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810034186A Pending CN101526579A (en) | 2008-03-04 | 2008-03-04 | Power frequency spark tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197219A (en) * | 2013-04-01 | 2013-07-10 | 东莞市和而泰电子科技有限公司 | Wire cable sine wave high frequency spark test circuit and wire cable sine wave high frequency spark test machine |
-
2008
- 2008-03-04 CN CN200810034186A patent/CN101526579A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197219A (en) * | 2013-04-01 | 2013-07-10 | 东莞市和而泰电子科技有限公司 | Wire cable sine wave high frequency spark test circuit and wire cable sine wave high frequency spark test machine |
| CN103197219B (en) * | 2013-04-01 | 2015-11-18 | 东莞市和而泰电子科技有限公司 | A kind of cable sine wave high-frequency spark test circuit and test machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090909 |