CN1996034A - Detection device for flexible circuit board characteristics and method therefor - Google Patents
Detection device for flexible circuit board characteristics and method therefor Download PDFInfo
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- CN1996034A CN1996034A CN 200610166414 CN200610166414A CN1996034A CN 1996034 A CN1996034 A CN 1996034A CN 200610166414 CN200610166414 CN 200610166414 CN 200610166414 A CN200610166414 A CN 200610166414A CN 1996034 A CN1996034 A CN 1996034A
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Abstract
The soft circuit board feature inspection device comprises each circuit corresponding inspection unit that comprises voltage comparison unit, comparison output unit and display warning unit, with each circuit connected with each entry end of the corresponding voltage comparison unit, the output of the voltage comparison unit connected with the entry end of the comparison output end, the output end of the comparison output unit connected with the input end of the display warning unit, featuring in the composition of the voltage comparison unit of two sets of voltage comparison circuit with benchmark voltage adjusting circuit. It also relates to the inspection method using the said soft circuit board. It can be used to all kinds of soft board testing.
Description
Technical field
The present invention relates to a kind of pick-up unit and detection method thereof of circuit characteristic, refer more particularly to a kind of pick-up unit and detection method thereof of flexible circuit board characteristics.
Background technology
Flexible circuit board (FPC) is as requisite parts in the DVD read head, it is the tie that optical signalling is connected with servo-drive system, the quality of its characteristic directly has influence on whole DVD read head and can check and accept by last test, say from whole production line, influence be exactly the first-pass yield of DVD read head.Therefore, how flexible circuit board characteristics is effectively detected, and will exist the flexible circuit board that lacks the loop to screen in advance, just seem particularly important by detecting.
Summary of the invention
A technical matters to be solved by this invention is: a kind of pick-up unit that flexible circuit board characteristics is effectively detected is provided.
Another technical matters to be solved by this invention is: a kind of method that flexible circuit board characteristics is effectively detected is provided.
For solving first technical matters, the technical solution used in the present invention is: the pick-up unit of flexible circuit board characteristics, comprise: with each loop of flexible circuit board detecting unit one to one, each detecting unit comprises voltage comparison unit, compare output unit and display alarm unit, each loop links to each other with the input end of correspondent voltage comparing unit respectively, the output terminal of voltage comparison unit links to each other with the input end that compares output unit, relatively the output terminal of output unit links to each other with the input end of display alarm unit, voltage comparison unit comprises two cover voltage comparator circuits, and this two covers comparator circuit is respectively arranged with reference voltage and adjusts circuit.
Utilize above-mentioned pick-up unit to the method that flexible circuit board characteristics detects, the steps include:
1) the batch data sampling is carried out in each loop of flexible circuit board respectively, determine the bound of the voltage in each loop according to the distribution situation of data, that is: the fluctuation range of voltage, each detecting unit makes it to adapt with the upper and lower limit magnitude of voltage in corresponding loop according to the bound voltage in the loop that is attached thereto, adjust the reference voltage that circuit is adjusted the cover of two in voltage comparison unit comparator circuit by reference voltage.
2) each loop of flexible circuit board to be measured is inserted the input end of the voltage comparison unit in the corresponding with it detecting unit, and allow its operate as normal, for any one detecting unit, if between the reference voltage of the two cover comparator circuits of the output voltage in the loop that is attached thereto in this voltage comparison unit, then the output of two cover comparator circuits is height, through relatively being output as low level after the output unit, the display alarm unit is normal like this; Otherwise just having one the tunnel in the two cover comparator circuits is low level output, and through relatively being output as high level after the output unit, report to the police in the display alarm unit.
The invention has the beneficial effects as follows: the present invention passes through sampling in batches with each loop of FPC and determines its bound separately, then this bound magnitude of voltage is set the reference voltage of the cover of two in the detecting unit that links to each other with this loop comparator circuit respectively, after the reference voltage of the comparator circuit in all detecting units configured, each detecting unit detected the loop that is attached thereto respectively.Whole detection method is simple and practical reliable, can detect the characteristic disappearance of flexible circuit board effectively.
Description of drawings
Below the invention will be further described, but the present invention should not only limit to this embodiment.
Fig. 1 is the electrical block diagram of the single detecting unit in the pick-up unit of the present invention.
Embodiment
The pick-up unit of flexible circuit board characteristics of the present invention, comprise: with each loop of flexible circuit board detecting unit one to one, as shown in Figure 1, each detecting unit comprises voltage comparison unit 1, compare output unit 2 and display alarm unit 3, each loop links to each other with the input end 11 of correspondent voltage comparing unit 1 respectively, the output terminal of voltage comparison unit 1 links to each other with the input end that compares output unit 2, relatively the output terminal of output unit 2 links to each other with the input end of display alarm unit 3, voltage comparison unit 1 comprises two cover voltage comparator circuits, and this two covers comparator circuit is respectively arranged with reference voltage and adjusts circuit 12 and 13.
Utilize above-mentioned pick-up unit to the method that flexible circuit board characteristics detects, the steps include:
1) the batch data sampling is carried out in each loop of flexible circuit board respectively, determine the bound of the voltage in each loop according to the distribution situation of data, that is: the fluctuation range of voltage, each detecting unit makes it to adapt with the upper and lower limit magnitude of voltage in corresponding loop according to the bound voltage in the loop that is attached thereto, adjust the reference voltage that circuit 12 and 13 is adjusted the cover of two in the voltage comparison unit 1 comparator circuit by reference voltage respectively.
2) each loop of flexible circuit board to be measured is inserted the input end 11 of the voltage comparison unit 1 in the corresponding with it detecting unit, and allow its operate as normal, for any one detecting unit, if between the reference voltage of the two cover comparator circuits of the output voltage in the loop that is attached thereto in this voltage comparison unit 1, then the output of two cover comparator circuits is height, through relatively being output as low level behind the output unit, like this, hummer 32 and alarm lamp 33 in the display alarm unit 3 quit work, and normal pilot lamp 31 is lighted; Otherwise just having one the tunnel in the two cover comparator circuits is low level output, through relatively being output as high level after the output unit, normal pilot lamp 31 in the display alarm unit 3 extinguishes, simultaneously, hummer 32 and alarm lamp 33 are started working, that is: hummer 32 sends the sound, alarm lamp 33 is lighted.
Claims (2)
1. the pick-up unit of flexible circuit board characteristics, it is characterized in that: comprise and each loop of flexible circuit board detecting unit one to one, each detecting unit comprises voltage comparison unit, compare output unit and display alarm unit, each loop links to each other with the input end of correspondent voltage comparing unit respectively, the output terminal of voltage comparison unit links to each other with the input end that compares output unit, relatively the output terminal of output unit links to each other with the input end of display alarm unit, voltage comparison unit comprises two cover voltage comparator circuits, and this two covers comparator circuit is respectively arranged with reference voltage and adjusts circuit.
2. utilize the described pick-up unit of claim 1 to the method that flexible circuit board characteristics detects, the steps include:
1) the batch data sampling is carried out in each loop of flexible circuit board respectively, determine the bound of the voltage in each loop according to the distribution situation of data, that is: the fluctuation range of voltage, each detecting unit makes it to adapt with the upper and lower limit magnitude of voltage in corresponding loop according to the bound voltage in the loop that is attached thereto, adjust the reference voltage that circuit is adjusted the cover of two in voltage comparison unit comparator circuit by reference voltage.
2) each loop of flexible circuit board to be measured is inserted the input end of the voltage comparison unit in the corresponding with it detecting unit, and allow its operate as normal, for any one detecting unit, if between the reference voltage of the two cover comparator circuits of the output voltage in the loop that is attached thereto in this detecting unit, then the output of two cover comparator circuits is height, through relatively being output as low level after the output unit, the display alarm unit is normal like this; Otherwise just having one the tunnel in the two cover comparator circuits is low level output, and through relatively being output as high level after the output unit, report to the police in the display alarm unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610166414 CN1996034A (en) | 2006-12-20 | 2006-12-20 | Detection device for flexible circuit board characteristics and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610166414 CN1996034A (en) | 2006-12-20 | 2006-12-20 | Detection device for flexible circuit board characteristics and method therefor |
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| Publication Number | Publication Date |
|---|---|
| CN1996034A true CN1996034A (en) | 2007-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610166414 Pending CN1996034A (en) | 2006-12-20 | 2006-12-20 | Detection device for flexible circuit board characteristics and method therefor |
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| CN (1) | CN1996034A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360417B (en) * | 2007-08-03 | 2011-06-29 | 富葵精密组件(深圳)有限公司 | Flexible circuit board visual inspection apparatus |
| CN103676868A (en) * | 2013-12-09 | 2014-03-26 | 华南理工大学 | Automatic monitoring and intelligent analyzing system used in FPC manufacturing critical process |
| CN104298641A (en) * | 2009-03-30 | 2015-01-21 | 美国亚德诺半导体公司 | USB isolator with advanced control features |
| CN105606989A (en) * | 2015-11-05 | 2016-05-25 | 浙江海得新能源有限公司 | Circuit test method, device and system |
-
2006
- 2006-12-20 CN CN 200610166414 patent/CN1996034A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360417B (en) * | 2007-08-03 | 2011-06-29 | 富葵精密组件(深圳)有限公司 | Flexible circuit board visual inspection apparatus |
| CN104298641A (en) * | 2009-03-30 | 2015-01-21 | 美国亚德诺半导体公司 | USB isolator with advanced control features |
| CN103676868A (en) * | 2013-12-09 | 2014-03-26 | 华南理工大学 | Automatic monitoring and intelligent analyzing system used in FPC manufacturing critical process |
| CN103676868B (en) * | 2013-12-09 | 2016-06-29 | 华南理工大学 | A kind of FPC manufactures critical process and automatically monitors and intelligent analysis system |
| CN105606989A (en) * | 2015-11-05 | 2016-05-25 | 浙江海得新能源有限公司 | Circuit test method, device and system |
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