CN207866901U - Circuit resistance tester - Google Patents
Circuit resistance tester Download PDFInfo
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- CN207866901U CN207866901U CN201820170646.8U CN201820170646U CN207866901U CN 207866901 U CN207866901 U CN 207866901U CN 201820170646 U CN201820170646 U CN 201820170646U CN 207866901 U CN207866901 U CN 207866901U
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Abstract
The utility model discloses a kind of circuit resistance testers, including test main frame, micro processor, apparatus, power down storage device, current sampling unit device, voltage sampling unit device, the first A/D modular devices, the 2nd A/D modular devices, security unit device, display unit device, communication interface arrangement and Wiring port device.The utility model is not necessarily to manual adjustment, and test is rapid accurate, can store test data, convenient to consult at any time, can be stored with computer communication and USB flash disk, improve loop resistance testing efficiency.
Description
Technical field
The utility model is related to resistance test technical field books, more specifically, are related to a kind of circuit resistance tester.
Background technology
According to power equipment preventive trial regulation《DL/T596—1996》Requirement, the conductions of various switchgears returns
Road resistance test, test electric current cannot be less than 100A.
Contact resistance is caused to increase due to contact surface oxidation, contact fastening are bad etc., when high current flows through, contact
Point temperature increases, and more quick access contacting surface aoxidizes for this, and contact resistance is made to further increase, and major accident will be generated by continuing, because
It is necessary to constantly or periodically be measured to contact resistance for this.
General circuit resistance tester, there are following defects：Test electric current is smaller, and output voltage is told somebody what one's real intentions are, and powers off data
It is easily lost and functions of the equipments is more single, cause test process manual steps various, the problems such as inefficiency.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of circuit resistance tester, are not necessarily to people
Work is adjusted, and test is rapid accurate, can store test data, convenient to consult at any time, can be stored, be carried with computer communication and USB flash disk
Loop resistance testing efficiency is risen.
The purpose of this utility model is achieved through the following technical solutions：A kind of circuit resistance tester, including survey
Try host, micro processor, apparatus, power down storage device, current sampling unit device, voltage sampling unit device, the first A/D moulds
Block assembly, the 2nd A/D modular devices, security unit device, display unit device, communication interface arrangement and Wiring port device；
First input/output terminal of the micro processor, apparatus and the input/output terminal of test main frame connect, the power down storage device
Second input/output terminal of input/output terminal and micro processor, apparatus connect, the input/output terminal of the communication interface arrangement with it is micro-
The third input/output terminal of processor device connects, the output end and the first A/D modular devices of the current sampling unit device
Input terminal connection, the first digital input end of the output ends of the first A/D modular devices and micro processor, apparatus connects, institute
The output end for stating voltage sampling unit device is connect with the input terminal of the 2nd A/D modular devices, the 2nd A/D modular devices
Second digital input end of output end and micro processor, apparatus connects, the data output end and printer of the micro processor, apparatus
The input terminal of device connects, and the power end of the micro processor, apparatus is connect with security unit device, the micro processor, apparatus
Data-interface connect with Wiring port device.
Further, the communication interface arrangement includes RS232 serial port devices.
Further, the communication interface arrangement includes USB interface device.
Further, the Wiring port device includes current terminal mouth and voltage link port.
Further, the display unit device includes liquid crystal display.
Further, the printer includes thermal printer.
The utility model has the beneficial effects that：
(1) the utility model by test main frame, micro processor, apparatus, power down storage device, current sampling unit device,
Voltage sampling unit device, the 2nd A/D modular devices, security unit device, display unit device, leads to the first A/D modular devices
Communication interface device and Wiring port device etc., test electric current is big, meets the requirements of the national standard in relation to testing contact resistance, exports
Voltage is high, and measuring range is wide, and test electric current comes from high-precision high current constant current power supply, is not necessarily to manual adjustment, tests rapid accurate
Really, power down stores, and can store test data, consult at any time, is equipped with mini-printer, RS232 and USB interface, can be with computer
Communication and USB flash disk storage, improve loop resistance testing efficiency.
(2) the utility model is widely used in various switches and contact resistance, loop resistance and the cable and wire of electric appliance, weldering
The measurement of contact resistance is stitched, measurement data is accurate, and performance is stablized, and meets electric power, the repair of power supply department scene high-voltage switch gear and height
Press off the requirement of shutout loop resistance test.
(3) the utility model by output current data and measures resistance data, while exporting on a liquid crystal display, simultaneously
To measurement result can also can voltage output also USB flash disk storage, power down storage etc., can meet at any time, diversified data
Query demand.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), is removed
It non-specifically describes, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, often
A feature is an example in a series of equivalent or similar characteristics.
Specific embodiment of the utility model is described more fully below, it should be noted that the embodiments described herein is served only for
For example, being not intended to limit the utility model.In the following description, in order to provide the thorough understanding to the utility model,
Elaborate a large amount of specific details.It will be apparent, however, to one skilled in the art that：These certain details need not be used
It saves to carry out the utility model.In other instances, in order to avoid obscuring the utility model, well known circuit is not specifically described
Deng.
As shown in Figure 1, a kind of circuit resistance tester, including test main frame, micro processor, apparatus, power down storage device,
Current sampling unit device, voltage sampling unit device, the first A/D modular devices, the 2nd A/D modular devices, security unit dress
It sets, display unit device, communication interface arrangement and Wiring port device；First input/output terminal of the micro processor, apparatus with
The input/output terminal of test main frame connects, the second input of the input/output terminal and micro processor, apparatus of the power down storage device
Output end connects, and the input/output terminal of the communication interface arrangement and the third input/output terminal of micro processor, apparatus connect, institute
The output end for stating current sampling unit device is connect with the input terminal of the first A/D modular devices, the first A/D modular devices
First digital input end of output end and micro processor, apparatus connects, the output end and the 2nd A/ of the voltage sampling unit device
The input terminal of D-module device connects, the second numeral input of the output end and micro processor, apparatus of the 2nd A/D modular devices
End connection, the data output end of the micro processor, apparatus and the input terminal of print apparatus connect, the micro processor, apparatus
Power end connect with security unit device, the data-interface of the micro processor, apparatus is connect with Wiring port device.
Optionally, the communication interface arrangement includes RS232 serial port devices.
Optionally, the communication interface arrangement includes USB interface device.
Optionally, the Wiring port device includes current terminal mouth and voltage link port.
Optionally, the display unit device includes liquid crystal display.
Optionally, the printer includes thermal printer.
Remaining technical characteristic in the present embodiment, those skilled in the art can flexibly be selected according to actual conditions
With with to meet different specific actual demands.It will be apparent, however, to one skilled in the art that：It need not use
These specific details carry out the utility model.In other instances, in order to avoid obscuring the utility model, public affairs are not specifically described
The composition known, structure or component limit technical protection in the claimed technical solution of claims of the utility model
Within the scope of.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " installation ", " phase
Even ", " connection " is broader sense, and those skilled in the art should broadly understood.For example, it may be fixedly connected, it can also
It is flexible connection, or is entirely connected, or locally connect, can be mechanical connection, can also be to be electrically connected, can be straight
It connects connected, can also be to be indirectly connected with by intermediary, the connection etc. inside two elements is can also be, for this field
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be, that is, word language
Expression can be flexibly corresponding with the implementation of actual techniques, the table of the word language (including attached drawing) of the specification of the utility model
Up to any single restricted explanation not constituted to claim.
Changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then all should be in this reality
In protection domain with novel appended claims.In the above description, it in order to provide the thorough understanding to the utility model, explains
A large amount of specific details are stated.It will be apparent, however, to one skilled in the art that：These specific details need not be used
To carry out the utility model.In other instances, in order to avoid obscuring the utility model, well known technology, example are not specifically described
Such as specific construction details, operating condition and other technical conditions etc..
Claims (6)
1. a kind of circuit resistance tester, which is characterized in that including test main frame, micro processor, apparatus, power down storage device, electricity
Flow sampling unit device, voltage sampling unit device, the first A/D modular devices, the 2nd A/D modular devices, security unit device,
Display unit device, communication interface arrangement and Wiring port device；
First input/output terminal of the micro processor, apparatus and the input/output terminal of test main frame connect, the power down storage dress
Second input/output terminal of the input/output terminal and micro processor, apparatus set connects, the input/output terminal of the communication interface arrangement
It is connect with the third input/output terminal of micro processor, apparatus, the output end and the first A/D modules of the current sampling unit device
The input terminal of device connects, and the output end of the first A/D modular devices and the first digital input end of micro processor, apparatus connect
It connects, the output end of the voltage sampling unit device is connect with the input terminal of the 2nd A/D modular devices, the 2nd A/D modules
Second digital input end of the output end of device and micro processor, apparatus connects, the data output end of the micro processor, apparatus with
The input terminal of print apparatus connects, and the power end of the micro processor, apparatus is connect with security unit device, the microprocessor
The data-interface of device device is connect with Wiring port device.
2. a kind of circuit resistance tester according to claim 1, which is characterized in that the communication interface arrangement includes
RS232 serial port devices.
3. a kind of circuit resistance tester according to claim 1, which is characterized in that the communication interface arrangement includes
USB interface device.
4. a kind of circuit resistance tester according to claim 1, which is characterized in that the Wiring port device includes electricity
Flow Wiring port and voltage link port.
5. a kind of circuit resistance tester according to claim 1, which is characterized in that the display unit device includes liquid
Crystal display.
6. a kind of circuit resistance tester according to claim 1, which is characterized in that the printer includes thermal printing
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820170646.8U CN207866901U (en) | 2018-01-31 | 2018-01-31 | Circuit resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820170646.8U CN207866901U (en) | 2018-01-31 | 2018-01-31 | Circuit resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866901U true CN207866901U (en) | 2018-09-14 |
Family
ID=63460579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820170646.8U Active CN207866901U (en) | 2018-01-31 | 2018-01-31 | Circuit resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256565A (en) * | 2023-02-27 | 2023-06-13 | 华能苏州热电有限责任公司 | Portable loop resistance tester |
-
2018
- 2018-01-31 CN CN201820170646.8U patent/CN207866901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256565A (en) * | 2023-02-27 | 2023-06-13 | 华能苏州热电有限责任公司 | Portable loop resistance tester |
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