CN103217614A - System and method for detecting connectivity of pins of Dewar flask - Google Patents
System and method for detecting connectivity of pins of Dewar flask Download PDFInfo
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- CN103217614A CN103217614A CN2013100983709A CN201310098370A CN103217614A CN 103217614 A CN103217614 A CN 103217614A CN 2013100983709 A CN2013100983709 A CN 2013100983709A CN 201310098370 A CN201310098370 A CN 201310098370A CN 103217614 A CN103217614 A CN 103217614A
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Abstract
The invention discloses a system and method for detecting the connectivity of pins of a Dewar flask. The system comprises a switch matrix, a source meter and a computer, wherein the connection mode of the system is as follows: two row selection output ports of the switch matrix are respectively connected with two input ports of the source meter, and a communication port of the switch matrix and a communication port of the source meter are respectively connected with two USB (Universal Serial Bus) ports of the computer. The method comprises the following steps of firstly mounting a to-be-detected Dewar flask in the system, then cyclically sending configuration signals to the switch matrix and the source meter by using the computer, and electrically connecting different inner and outer pins of the Dewar flask with the source meter sequentially so as to carry out resistance test, and thirdly judging the connectivity between the pins by using resistance test data, and saving detection results after the judgment on the connectivity between the pins is all completed. The system and the method have the advantages that the automation of the detection on the connectivity among the pins of the Dewar flask is realized, and the detection efficiency is increased; and the inaccuracy of detection caused by manually changing pin connection is avoided.
Description
Technical field:
The present invention relates to infrared focal plane device Dewar flask detection range, be specifically related to a kind of Dewar flask pin detection of connectivity system and detection method.
Background technology:
Dewar flask needs to be extensive use of in infrared focal plane detector performance test process, and infrared focal plane detector chip testing is numerous with the Dewar flask pin number, and inside and outside pin number is generally 50 or 78.Dewar flask needed to carry out the pin detection of connectivity before coming into operation, existing Dewar flask pin method for detecting connectivity is to utilize hand-held multimeter to detect manually, and concrete grammar is that the resistance that utilizes the ohms range of multimeter to test between the different pins judges between pin whether be communicated with.Because Dewar flask pin detection of connectivity need be tested conduction and the inside and outside not insulativity between corresponding pin between inside and outside corresponding pin.Being 50 Dewar flask for inside and outside pin number needs to carry out 1125 artificial multimeters at least and measures detecting Dewar flask pin connectedness, and being 78 Dewar flask for inside and outside pin number then needs to carry out 2701 artificial multimeters at least and measure.Detection efficiency is lower and cause that easily tester's fatigue causes omission or flase drop manually.
Summary of the invention:
In order to solve the above-mentioned problem that exists that detects manually, the purpose of this invention is to provide a kind of robotization that can realize Dewar flask pin detection of connectivity, improve a kind of Dewar flask pin detection of connectivity system and the detection method of detection efficiency and accuracy.
For reaching above-mentioned purpose, the invention provides a kind of Dewar flask pin detection of connectivity system, comprise: switch matrix 102, source table 103 and computing machine 104, described switch matrix 102 is the program-controlled switch matrix with the choosing of multichannel row, column selection switching function, described source table 103 is the program-controlled source tables with resistance test function, and described computing machine 104 is mini-computers.Its connected mode is: two row of switch matrix 102 select output port to link to each other with two input ports of source table 103 respectively, and the PORT COM of switch matrix 102, source table 103 links to each other with two USB port of computing machine 104 respectively.
A kind of Dewar flask pin method for detecting connectivity, step is:
One, the inside and outside pin with Dewar flask 101 to be detected links to each other with two groups of column selection ports of switch matrix 102 respectively;
Two, utilize computing machine 104 to send configuration signal to switch matrix 102, make in the inside and outside pin of Dewar flask 101 to be detected each one respectively with two groups of column selection ports conducting of switch matrix 102;
Three, utilize computing machine 104 to send configuration signal, test the resistance between the Dewar flask 101 inside and outside pins to be detected, test the backcasting machine 104 test transmission results that finish to source table 103;
Four, utilize test result to judge connectedness between tested pin;
Five, circulation step two, step 3, step 4 to Dewar flask to be detected 101 inside and outside all the connectedness between the pin judge;
Six, on computing machine 104 hard disks, preserve testing result.
The invention has the beneficial effects as follows:
1) realizes the robotization of Dewar flask pin continuity testing, improved testing efficiency.
2) uncertainty of having avoided artificial replacing pin to connect is finished in the conversion of the different pins connections of Dewar flask by computer control.
Description of drawings:
Fig. 1 is a test macro synoptic diagram of the present invention.
Fig. 2 is the inside and outside pin of specific embodiment of the invention Dewar flask to be detected, switch matrix, source table annexation synoptic diagram.Wherein, 201 is the anodal port that links to each other with source table 103,202 is the negative pole port that links to each other with source table 103,203 is the outer pin that links to each other with Dewar flask 101 to be detected, 204 is the interior pin that links to each other with Dewar flask 101 to be detected, 205 is the vertical port that links to each other with the 1st group of 1 * 96 alignment switch of switch matrix 102,206 is the vertical port that links to each other with the 2nd group of 1 * 96 alignment switch of switch matrix 102,207 is the transverse port that links to each other with the 1st group of 1 * 96 alignment switch of switch matrix 102, and 208 is the transverse port that links to each other with the 2nd group of 1 * 96 alignment switch of switch matrix 102.
Fig. 3 is a Labview trace routine operating procedure synoptic diagram in the specific embodiment of the invention.
Embodiment:
In order to be illustrated more clearly in the present invention, the present invention is described in further detail as follows below in conjunction with the drawings and specific embodiments:
Referring to Fig. 1, Dewar flask to be detected 101 in the detection system of the present invention is surveyed Dewar flask in the infrared focal plane device, have each 50 of inside and outside pins, switch matrix 102 is for installing the Keithley707B switch matrix main frame of two Keithley7075 switch matrix cards, have 2 group of 1 * 96 alignment switch, source table 103 is the multi-functional source of a Keithley2400 table, computing machine 104 is installed Labview software, can control and data acquisition switch matrix 102 and source table 103 by Labview software programming test procedure.
Dewar flask 101 to be detected, switch matrix 102 and source table 103 link to each other, concrete connected mode is referring to Fig. 2, anodal port 201 links to each other with transverse port 207, negative pole port 202 links to each other with transverse port 208, each pin of outer pin 203 links to each other with each port of vertical port 205 successively, and each pin of interior pin 204 links to each other with each port of vertical port 206 successively.
Labview trace routine operating procedure is referring to Fig. 3, the 1st step, deploy switch matrix 102, make the corresponding switch closure of particular port in vertical port 205 and the vertical port 206, rest switch disconnects, realize that two special pin electricity in the Dewar flask 101 inside and outside pins to be detected are communicated with, the 2nd step, source of configuration table 103 carries out resistance test, the 3rd step, the resistance data of source table 103 test is transferred to computing machine 104, in the 4th step, the resistance data that computing machine 104 receives is judged that resistance is greater than 1 * 10
9Ohm judges that the Dewar flask pin is separated, and resistance is less than being communicated with between 10 ohm of judgement Dewar flask pins.The 5th step, circulated for the 1st, 2,3,4 steps, detection of connectivity is carried out in all possible connection between the Dewar flask 101 inside and outside pins to be detected, in the 6th step, in computing machine 104, preserve testing result.
Above-mentioned specific embodiment is not that the present invention is done any pro forma qualification just in order to describe the present invention in detail.
Claims (2)
1. Dewar flask pin detection of connectivity system comprises: switch matrix (102), source table (103) and computing machine (104) is characterized in that:
Described switch matrix (102) is the program-controlled switch matrix with the choosing of multichannel row, column selection switching function, and described source table (103) is the program-controlled source table with resistance test function, and described computing machine (104) is a mini-computer;
Two row of switch matrix (102) select output port to link to each other with two input ports of source table (103) respectively, and the PORT COM of switch matrix (102), source table (103) links to each other with two USB port of computing machine (104) respectively.
2. Dewar flask pin method for detecting connectivity based on the described system of claim 1 is characterized in that may further comprise the steps:
One, the inside and outside pin with Dewar flask to be detected (101) links to each other with two groups of column selection ports of switch matrix (102) respectively;
Two, utilize computing machine (104) to send configuration signal to switch matrix (102), make in the inside and outside pin of Dewar flask to be detected (101) each one respectively with two groups of column selection ports conducting of switch matrix (102);
Three, utilize computing machine (104) Xiang Yuanbiao (103) to send configuration signal, test the resistance between the inside and outside pin of Dewar flask to be detected (101), test backcasting machine (104) the test transmission result that finishes;
Four, utilize test result to judge connectedness between tested pin;
Five, circulation step two, step 3, step 4 are judged the connectedness between all inside and outside pins of Dewar flask to be detected (101);
Six, on computing machine (104) hard disk, preserve testing result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100983709A CN103217614A (en) | 2013-03-26 | 2013-03-26 | System and method for detecting connectivity of pins of Dewar flask |
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| CN2013100983709A CN103217614A (en) | 2013-03-26 | 2013-03-26 | System and method for detecting connectivity of pins of Dewar flask |
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| CN2013100983709A Pending CN103217614A (en) | 2013-03-26 | 2013-03-26 | System and method for detecting connectivity of pins of Dewar flask |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238791A (en) * | 2017-07-20 | 2017-10-10 | 南京富士通南大软件技术有限公司 | Driving test environment based on VTSystem is from adaption system |
| CN110361601A (en) * | 2019-08-02 | 2019-10-22 | 深圳市全洲自动化设备有限公司 | A kind of LCD device pin Electrical Indexes method for rapidly testing |
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| CN101281231A (en) * | 2008-05-22 | 2008-10-08 | 株洲南车时代电气股份有限公司 | Method for testing locomotive general-purpose circuit board function |
| US20120242357A1 (en) * | 2011-03-23 | 2012-09-27 | Hamilton Sundstrand Corporation | Automatic fault insertion, calibration and test system |
| CN203249981U (en) * | 2013-03-26 | 2013-10-23 | 中国科学院上海技术物理研究所 | System for detecting connectivity of pins of Dewar flask |
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2013
- 2013-03-26 CN CN2013100983709A patent/CN103217614A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281231A (en) * | 2008-05-22 | 2008-10-08 | 株洲南车时代电气股份有限公司 | Method for testing locomotive general-purpose circuit board function |
| US20120242357A1 (en) * | 2011-03-23 | 2012-09-27 | Hamilton Sundstrand Corporation | Automatic fault insertion, calibration and test system |
| CN203249981U (en) * | 2013-03-26 | 2013-10-23 | 中国科学院上海技术物理研究所 | System for detecting connectivity of pins of Dewar flask |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238791A (en) * | 2017-07-20 | 2017-10-10 | 南京富士通南大软件技术有限公司 | Driving test environment based on VTSystem is from adaption system |
| CN107238791B (en) * | 2017-07-20 | 2019-09-20 | 南京富士通南大软件技术有限公司 | The adaptive match system of environment is tested in driving based on VTSystem |
| CN110361601A (en) * | 2019-08-02 | 2019-10-22 | 深圳市全洲自动化设备有限公司 | A kind of LCD device pin Electrical Indexes method for rapidly testing |
| CN110361601B (en) * | 2019-08-02 | 2021-05-25 | 深圳市全洲自动化设备有限公司 | Method for rapidly testing electric indexes of pins of LCD (liquid crystal display) device |
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Application publication date: 20130724 |