CN207586343U - A kind of wiring board open-short circuit device - Google Patents
A kind of wiring board open-short circuit device Download PDFInfo
- Publication number
- CN207586343U CN207586343U CN201721854131.1U CN201721854131U CN207586343U CN 207586343 U CN207586343 U CN 207586343U CN 201721854131 U CN201721854131 U CN 201721854131U CN 207586343 U CN207586343 U CN 207586343U
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- China
- Prior art keywords
- circuit
- sensor
- short circuit
- wiring board
- measurement
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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.)
- Ceased
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model is related to soft board technical field of measurement and test, more particularly to a kind of wiring board open-short circuit device, including a governor circuit, described governor circuit one end connects USB port, the other end connects a sensor, described sensor one end is connect with governor circuit, the other end connects multiple Measurement channels, the multiple Measurement channel external connection circuit under test, described USB port one end is connect with governor circuit, and the other end is connected to computer, and the sensor is capacitive reactance sensor, the Measurement channel includes connection terminal, and each Measurement channel corresponds to a connection terminal.Compared with prior art, the wiring board open-short circuit device of the utility model is converted by connection terminal, sensor and USB port, circuit under test is connected to computer, without knit stitch, there are no must signal source and voltage, current measurement module can realize circuit open short circuit measurement, the cost of test equipment is reduced, improves operability and production efficiency.
Description
【Technical field】
The utility model is related to soft board technical field of measurement and test, more particularly to a kind of wiring board open-short circuit device.
【Background technology】
With raising of the development and people of electronic product to quality requirements, for electronic product test also require it is more next
Higher, open-short circuit is that testing field is most basic and most important one is tested, and is especially sent out at a high speed in "smart" products
Today of exhibition, soft board is using more and more extensive, and only there is no devices for cabling on many soft boards, for this soft board, open
Short-circuit test is mostly important, and current most treating method has 1, manual measurement；2nd, short circuit is opened in ICT surveys.In cost of labor
Constantly the soaring epoch, first method is significantly that cannot be used for producing in enormous quantities, and manual testing's error rate is high；It please refers to
Fig. 1 is second of traditional measuring circuit structure, needs knit stitch with the mode of signal source forcing to measure out short circuit, and soft board
It is easy to be damaged in measurement process, so as to increase fraction defective.
【Utility model content】
In order to overcome the above problem, the utility model proposes a kind of matching precision height, efficient wiring boards to open short-circuit survey
Trial assembly is put.
The utility model solves a kind of technical solution that above-mentioned technical problem provides：A kind of wiring board is provided and opens short-circuit survey
Trial assembly is put, and including a governor circuit, described governor circuit one end connects USB port, and the other end connects a sensor, the sensing
Device one end is connect with governor circuit, the multiple Measurement channels of other end connection, the multiple Measurement channel external connection circuit under test,
Described USB port one end is connect with governor circuit, and the other end is connected to computer, and the sensor is capacitive reactance sensor, described
Measurement channel includes connection terminal, and each Measurement channel corresponds to a connection terminal.
Preferably, the capacitive reactance data information of acquisition is converted to the AD values of 16 by the capacitive reactance sensor.
Compared with prior art, the wiring board open-short circuit device of the utility model by connection terminal, sensor and
USB port is converted, and circuit under test is connected to computer, without knit stitch, there are no must signal source and voltage, current measurement module just
Can realize circuit opens short circuit measurement, reduces the cost of test equipment, improves operability, especially solves at present
Soft board tests the problem of test equipment of no high reliability, high performance-price ratio and high security on the market, by connection terminal with
The correspondence of circuit under test can efficiently and accurately measure short-circuit group and open circuit group on wiring board very much, improve efficiency, be conducive to
Production.
【Description of the drawings】
Fig. 1 opens short circuit current structure chart for prior art test；
Fig. 2 is a kind of circuit structure diagram of wiring board open-short circuit device of the utility model.
【Specific embodiment】
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used for explaining
The utility model is not used to limit the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
The relative position being only limitted in given view rather than absolute position.
In addition, it and cannot be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for description purpose
It solves to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in the description of the present invention,
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
Referring to Fig. 2, a kind of wiring board open-short circuit device of the utility model, including a governor circuit, the master
Circuit on one side connection USB port is controlled, the other end connects a sensor.Described sensor one end is connect with governor circuit, the other end
Connect multiple Measurement channels, the multiple Measurement channel external connection circuit under test.Described USB port one end connects with governor circuit
It connects, the other end is connected to computer.The sensor is capacitive reactance sensor, can effective area using the measuring principle of capacitance
Divide the situation of short circuit and open circuit.The Measurement channel includes connection terminal, and each Measurement channel corresponds to a connection terminal.
The computer issues control command to governor circuit by USB port, and governor circuit is held by control command control
Anti- sensor can obtain the capacitive reactance data information of circuit under test from different connection terminals.The capacitive reactance sensor is by the appearance of acquisition
Anti- data information is converted to the AD values of 16, and sampled value is sent to governor circuit, then be transferred to calculating by governor circuit
Machine, the bigger sampled value of capacitive reactance is smaller, and the smaller sampled value of capacitive reactance is bigger.It opens a way since capacitive reactance sensor is collected and is treated with short-circuit
Slowdown monitoring circuit capacitor value differs greatly, and short-circuit condition is opened so as to easily judge circuit under test.
The circuit under test opens short-circuit conditions and can be equivalent to a resistance Rx series connection between two or more channels
The circuit of one capacitance Cx when the circuit under test is open circuit, is mainly shown as capacitance characteristic, Rx is considered as short circuit；Work as institute
When stating circuit under test as short circuit, characteristic is mainly shown as the characteristic of resistance, and Cx is considered as short circuit.So pass through the connection terminal
Circuit under test is connected to capacitive reactance sensor, the AD values that the capacitive reactance sensor is converted into the capacitor value of circuit under test 16 pass
The governor circuit is passed, AD values are transmitted to computer by the governor circuit by USB port again, and computer software is by adopting
The capacitor value size of sample judges that circuit under test opens short circuit curve, when circuit under test has any two connection terminal short circuit, adopts
The capacitor value of sample can obtain maximum value, so being easy to judge short circuit；When circuit under test is open circuit, the capacitor value of sampling is remote
Less than maximum value.
Compared with prior art, the wiring board open-short circuit device of the utility model by connection terminal, sensor and
USB port is converted, and circuit under test is connected to computer, without knit stitch, there are no must signal source and voltage, current measurement module just
Can realize circuit opens short circuit measurement, reduces the cost of test equipment, improves operability, especially solves at present
Soft board tests the problem of test equipment of no high reliability, high performance-price ratio and high security on the market, by connection terminal with
The correspondence of circuit under test can efficiently and accurately measure short-circuit group and open circuit group on wiring board very much, improve efficiency, be conducive to
Production.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every any modification made within the design of the utility model, equivalent replacement and improvement etc. should be included in the utility model
Scope of patent protection in.
Claims (2)
1. a kind of wiring board open-short circuit device, which is characterized in that including a governor circuit, governor circuit one end connection
USB port, the other end connect a sensor, and described sensor one end is connect with governor circuit, and multiple measure of other end connection is led to
Road, the multiple Measurement channel external connection circuit under test, described USB port one end are connect with governor circuit, other end connection
In computer；
The sensor is capacitive reactance sensor；
The Measurement channel includes connection terminal, and each Measurement channel corresponds to a connection terminal.
2. wiring board open-short circuit device as described in claim 1, which is characterized in that the capacitive reactance sensor is by acquisition
Capacitive reactance data information is converted to the AD values of 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854131.1U CN207586343U (en) | 2017-12-26 | 2017-12-26 | A kind of wiring board open-short circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854131.1U CN207586343U (en) | 2017-12-26 | 2017-12-26 | A kind of wiring board open-short circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207586343U true CN207586343U (en) | 2018-07-06 |
Family
ID=62740122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721854131.1U Ceased CN207586343U (en) | 2017-12-26 | 2017-12-26 | A kind of wiring board open-short circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207586343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030949A (en) * | 2018-08-17 | 2018-12-18 | 深圳市派捷电子科技有限公司 | A kind of device and method of four lines test resistance |
| CN111929565A (en) * | 2020-08-12 | 2020-11-13 | 上海龙旗科技股份有限公司 | Test circuit board opens short-circuit device |
-
2017
- 2017-12-26 CN CN201721854131.1U patent/CN207586343U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030949A (en) * | 2018-08-17 | 2018-12-18 | 深圳市派捷电子科技有限公司 | A kind of device and method of four lines test resistance |
| CN111929565A (en) * | 2020-08-12 | 2020-11-13 | 上海龙旗科技股份有限公司 | Test circuit board opens short-circuit device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20200303 Decision number of declaring invalidation: 43479 Granted publication date: 20180706 |