CN205539132U - Direct current pressure drop, temperature rise and resistance test system - Google Patents
Direct current pressure drop, temperature rise and resistance test system Download PDFInfo
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- CN205539132U CN205539132U CN201620011694.3U CN201620011694U CN205539132U CN 205539132 U CN205539132 U CN 205539132U CN 201620011694 U CN201620011694 U CN 201620011694U CN 205539132 U CN205539132 U CN 205539132U
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- embedded microprocessor
- temperature rise
- pressure drop
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
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Abstract
The utility model provides a direct current pressure drop, temperature rise and resistance test system, including embedded microprocessor, its characteristics are embedded microprocessor is connected with the high precise current source, the high precise current source respectively with the current output unit, voltage output unit and temperature output interface connection, the current output unit, voltage output unit with the temperature output interface all is connected with test fixture, test fixture surveys the sample with the quilt and is connected, surveyed the sample through simulation detection circuitry with embedded microprocessor connects, embedded microprocessor is connected with voltage detection unit and temperature rise detecting element respectively to and resistance detection unit, embedded microprocessor still is connected with large screen display element, keyboard. This technical scheme precision is high, intelligent, the high performance, can be connected the automatic record of quantity performed certificate, statistics, analysis with computer host computer or other external control units.
Description
Technical field
This utility model relates to a kind of unidirectional current pressure drop, temperature rise and resistance test system, belongs in International Patent Classification (IPC) that " G01R measures electric variable；Measure magnetic variable " technical field.
Background technology
In terms of the electrical performance characteristics test of material: voltage drop, temperature rise and resistance measurement are very important measurement indexs.
The most conventional is all that simple function type such as can only test voltage drop, or wherein certain two function；Disposable test and the quality evaluation of material cannot be completed；nullWhat single voltage drop instrument used is all that traditional Switching Power Supply is as constant-current source，Electric current and voltage-drop data is tested by instrument or numeral method，Load is provided with sample，Voltage is being gathered from sample test lead，Thus test out voltage drop value，Resistance value needs single manual conversion，Sample is sent out temperature rise data in the load thermogenetic and is almost left in the basket，Traditional fall-of potential test precision can be limited by display instrument meter accuracy，Test electric current exists drift fluctuation cannot realize the most greatly high-precision measurement，Particularly in high power switching power supply is as the fall-of potential test of load source, error amount deviation is the biggest，Precision data cannot be obtained，Electric current passes through diverter or constantan wire resistance sampling in the design，Cannot the interference signal source that brings of filter current sampling itself and total system，So far it is difficult to obtain constant current output.
It addition, along with the raising of scientific and technological level, cost of labor increases, client's high request to product quality；Automatic production line inspection complete to product requirement, improves quality；Conventional voltage fall tester cannot carry out Automated condtrol or the combination with external control unit outside；Traditional pressure drop data uses manual record cannot realize automatic data management, data preserve and the analysis of data；To sum up, due to current method of testing, to there is efficiency low, and the defects such as precision is the highest, and intelligence degree is low are not suitable with the demand in terms of current testing of materials.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of high accuracy, high-intelligentization, high performance unidirectional current pressure drop, temperature rise and resistance test system, it can be connected with computer host computer or other external control unit outside, and the automatization completing data records, adds up, analyzes.
For solving above-mentioned technical problem, the technical solution of the utility model is:
A kind of unidirectional current pressure drop, temperature rise and resistance test system, including embedded microprocessor, wherein said embedded microprocessor is connected with high precise current source, described high precise current source respectively with current output unit, voltage output unit and temperature output interface connect, described current output unit, voltage output unit and described temperature output interface are all connected with measurement jig, described measurement jig is connected with sample, and described sample is connected with described embedded microprocessor by analogue detection circuitry；Described embedded microprocessor is connected to voltage detection unit and temperature rise detector unit, and resistance detection unit；Described embedded microprocessor is also associated with large screen display unit, keyboard.
Preferably, above-mentioned a kind of unidirectional current pressure drop, temperature rise and resistance test system, wherein said embedded microprocessor also electrically connects with an external control unit, and described external control unit includes USB interface, RS232 interface, RS485 interface.
Preferably, above-mentioned a kind of unidirectional current pressure drop, temperature rise and resistance test system, it is connected with constant-current source in turn between wherein said embedded microprocessor and described current output unit, analogue signal circuit, high stable molds resistance, phase inverter, high precision operating amplifier and analog multiplexer.
Preferably, above-mentioned a kind of unidirectional current pressure drop, temperature rise and resistance test system, wherein said embedded microprocessor is 32 embedded microprocessors.
Preferably, above-mentioned a kind of unidirectional current pressure drop, temperature rise and resistance test system, wherein said large screen display unit is 4.3 cun of TFT color LCD screens of 480 × 272.
Relatively prior art, this utility model has the technical effect that: by embedded microprocessor, high precise current source is carried out signal-data processing in this utility model and produces continuous current, it is added on unit under test by current output unit or voltage output unit, carried out signals collecting by analogue detection circuitry and complete the sampling of the voltage on unit under test, send into embedded microprocessor, tested by voltage drop detector unit or resistance detection unit, test result is read in by embedded microprocessor, calculate voltage drop value and the resistance value of unit under test, and shown by large screen display unit.It addition, complete the collection to sample temperature rise data by temperature output interface, and by temperature rise detector unit, temperature rise is detected, complete additionally, all operations of complete machine can connect host computer computer by USB interface or RS232 interface.
Accompanying drawing explanation
Fig. 1: this utility model structural principle schematic block diagram；
Fig. 2: this utility model part-structure schematic block diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, so that technical solution of the present invention is more readily understood and grasps.
As shown in Figure 1, a kind of unidirectional current pressure drop, temperature rise and resistance test system, including embedded microprocessor, wherein said embedded microprocessor is connected with high precise current source, described high precise current source respectively with current output unit, voltage output unit and temperature output interface connect, described current output unit, voltage output unit and described temperature output interface are all connected with measurement jig, described measurement jig is connected with sample, and described sample is connected with described embedded microprocessor by analogue detection circuitry；Described embedded microprocessor is connected to voltage detection unit and temperature rise detector unit, and resistance detection unit；Described embedded microprocessor is also associated with large screen display unit, keyboard.
Wherein said embedded microprocessor also electrically connects with an external control unit, and described external control unit includes USB interface, RS232 interface, RS485 interface.
Additionally, as in figure 2 it is shown, be connected with constant-current source, analogue signal circuit in turn between wherein said embedded microprocessor and described voltage drop detector unit, high stable molds resistance, phase inverter, high precision operating amplifier and analog multiplexer, be connected with constant-current source in turn between described embedded microprocessor and described current output unit, analogue signal circuit, high stable molds resistance, phase inverter, high precision operating amplifier and analog multiplexer.
In addition embedded microprocessor is 32 embedded microprocessors, and large screen display unit is 4.3 cun of TFT color LCD screens of 480 × 272.
This technical scheme is carried out signal-data processing by embedded microprocessor to high precise current source and produces continuous current, it is added on unit under test by current output unit or voltage output unit, carried out signals collecting by analogue detection circuitry and complete the sampling of the voltage on unit under test, send into embedded microprocessor, tested by voltage drop detector unit or resistance detection unit, test result is read in by embedded microprocessor, calculate voltage drop value and the resistance value of unit under test, and shown by large screen display unit.It addition, complete the collection to sample temperature rise data by temperature output interface, and by temperature rise detector unit, temperature rise is detected, complete additionally, all operations of complete machine can connect host computer computer by USB interface or RS232 interface.
Certainly, above is only concrete exemplary applications of the present utility model, does not constitutes any limitation protection domain of the present utility model.The technical scheme that all employing equivalents or equivalence are replaced and formed, within the scope of all falling within this utility model rights protection.
Claims (5)
1. a unidirectional current pressure drop, temperature rise and resistance test system, including embedded microprocessor, it is characterized in that: described embedded microprocessor is connected with high precise current source, described high precise current source is connected with current output unit, voltage output unit and temperature output interface respectively, described current output unit, voltage output unit and described temperature output interface are all connected with measurement jig, described measurement jig is connected with sample, and described sample is connected with described embedded microprocessor by analogue detection circuitry；Described embedded microprocessor is connected to voltage detection unit and temperature rise detector unit, and resistance detection unit；Described embedded microprocessor is also associated with large screen display unit, keyboard.
A kind of unidirectional current pressure drop the most according to claim 1, temperature rise and resistance test system, it is characterised in that: described embedded microprocessor also electrically connects with an external control unit, and described external control unit includes USB interface, RS232 interface, RS485 interface.
A kind of unidirectional current pressure drop the most according to claim 1, temperature rise and resistance test system, it is characterised in that: it is connected with constant-current source, analogue signal circuit, high stable mold pressing resistance, phase inverter, high precision operating amplifier and analog multiplexer between described embedded microprocessor and described current output unit in turn.
A kind of unidirectional current pressure drop the most according to claim 1, temperature rise and resistance test system, it is characterised in that: described embedded microprocessor is 32 embedded microprocessors.
A kind of unidirectional current pressure drop the most according to claim 1, temperature rise and resistance test system, it is characterised in that: described large screen display unit is 4.3 cun of TFT color LCD screens of 480 × 272.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011694.3U CN205539132U (en) | 2016-01-05 | 2016-01-05 | Direct current pressure drop, temperature rise and resistance test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011694.3U CN205539132U (en) | 2016-01-05 | 2016-01-05 | Direct current pressure drop, temperature rise and resistance test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539132U true CN205539132U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620011694.3U Expired - Fee Related CN205539132U (en) | 2016-01-05 | 2016-01-05 | Direct current pressure drop, temperature rise and resistance test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539132U (en) |
-
2016
- 2016-01-05 CN CN201620011694.3U patent/CN205539132U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |