CN102707146A - Experimental apparatus for determining resistance of resistor - Google Patents
Experimental apparatus for determining resistance of resistor Download PDFInfo
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- CN102707146A CN102707146A CN2012101878989A CN201210187898A CN102707146A CN 102707146 A CN102707146 A CN 102707146A CN 2012101878989 A CN2012101878989 A CN 2012101878989A CN 201210187898 A CN201210187898 A CN 201210187898A CN 102707146 A CN102707146 A CN 102707146A
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Abstract
The invention discloses an experimental apparatus for determining the resistance of a resistor. The experimental apparatus comprises an adjustable resistor, a tested resistor, a first switch, a second switch, a voltage meter, a power supply and a current-limiting resistor, wherein the tested resistor and the first switch are connected in series to form a first branch; the adjustable resistor and the second switch are connected in series to form a second branch; the first branch, the second branch and the voltage meter are connected in parallel; and a circuit consisting of the first branch, the second branch and the voltage meter which are connected in parallel is connected in series with the power supply and the current-limiting resistor to form a closed circuit. The experimental apparatus is simple in structure, practical and convenient, and facilitates accurate measurement of the resistance.
Description
Technical field
The present invention relates to a kind of electronic component parameter measuring apparatus, be specially a kind of resistance determination experiment device.
Background technology
At present, the method for measuring resistance mainly contains voltammetry and multimeter resistance grade mensuration.The former needs measuring voltage and electric current simultaneously, owing to receive the influence of voltage meter or amp gauge internal resistance, measuring accuracy is limited; The latter is owing to receive the influence of the internal resistance of cell, and measurement result is also not accurate enough.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of measurement result resistance determination experiment device comparatively accurately is provided.
To achieve these goals, the present invention takes following technical scheme:
A kind of resistance determination experiment device; Comprise adjustable resistance, measured resistance, first switch, second switch, voltage table, power supply and current-limiting resistance; Said measured resistance is connected with said first switch and is connected and composed first branch road, and said adjustable resistance and said second switch are connected in series and constitute second branch road; Said first branch road, said second branch road, said voltage table are connected in parallel; The circuit that is connected in parallel by said first branch road, said second branch road, said voltage table is connected in series with said power supply and said current-limiting resistance and constitutes closed circuit.
Further, said adjustable resistance is a standard resistance box.
Actual measurement was divided into for two steps, the first step: closed said first switch, break off said second switch, read the reading of said voltage table.Second step: break off said first switch, closed said second switch, the resistance of regulating said adjustable resistance makes the reading of said voltage table identical with the reading of first step measurement.This moment, the resistance of said adjustable resistance equated with the resistance of said measured resistance, recorded the resistance of said measured resistance thus.
The present invention has overcome the deficiency of traditional resistor mensuration owing to adopt above-mentioned design, and it is simple in structure, and is practical and convenient, helps the accurate measurement of resistance value.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is circuit theory diagrams of the present invention.
Among the figure: 1. adjustable resistance, 2. measured resistance, 3. first switch, 4. second switch, 5. voltage table, 6. power supply, 7. current-limiting resistance.
Embodiment
As shown in Figure 1; Resistance determination experiment device of the present invention comprises adjustable resistance 1, measured resistance 2, first switch 3, second switch 4, voltage table 5, power supply 6 and current-limiting resistance 7; The said measured resistance 2 and first switch 3 are connected in series and constitute first branch road, and adjustable resistance 1 is connected in series with second switch 4 and constitutes second branch road; Said first branch road, second branch road and voltage table 5 are connected in parallel; The circuit that is connected in parallel by said first branch road, second branch road and voltage table 5 is connected in series with power supply 6 and current-limiting resistance 7 and constitutes closed circuit.
Current-limiting resistance 7 is used for the size of control circuit electric current, prevents that the electric current in the circuit is excessive.
Concrete measurement is carried out according to the following steps: the first step: closed first switch 3, break off second switch 4, read the reading of voltage table 5.Second step: break off first switch 3, closed second switch 4, regulate the resistance of adjustable resistance 1, make the reading of voltage table 5 identical with the reading of first step measurement.Read the resistance of adjustable resistance 1 this moment, this resistance is the resistance of measured resistance 2.
Claims (2)
1. resistance determination experiment device; It is characterized in that: comprise adjustable resistance (1), measured resistance (2), first switch (3), second switch (4), voltage table (5), power supply (6) and current-limiting resistance (7); Said measured resistance (2) is connected in series with first switch (3) and constitutes first branch road, and said adjustable resistance (1) is connected in series with second switch (4) and constitutes second branch road; Said first branch road, said second branch road, said voltage table (5) are connected in parallel; The circuit that is connected in parallel by said first branch road, said second branch road, said voltage table (5) again with power supply (6) and current-limiting resistance (7) the formation closed circuit that is connected in series.
2. a kind of resistance determination experiment device according to claim 1 is characterized in that: said adjustable resistance (1) is a standard resistance box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101878989A CN102707146A (en) | 2012-06-05 | 2012-06-05 | Experimental apparatus for determining resistance of resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101878989A CN102707146A (en) | 2012-06-05 | 2012-06-05 | Experimental apparatus for determining resistance of resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102707146A true CN102707146A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101878989A Pending CN102707146A (en) | 2012-06-05 | 2012-06-05 | Experimental apparatus for determining resistance of resistor |
Country Status (1)
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| CN (1) | CN102707146A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142226A (en) * | 2013-03-28 | 2013-06-12 | 苏州市豪杰机械电子设备有限公司 | Human body resistance testing method |
| CN104181394A (en) * | 2013-05-23 | 2014-12-03 | 中国石油天然气集团公司 | Resistivity measurement method of rock and ore specimen |
| CN106124863A (en) * | 2016-09-01 | 2016-11-16 | 广东优科检测技术服务有限公司 | A kind of test circuit compensating resistance and method of testing |
| CN108844664A (en) * | 2018-08-20 | 2018-11-20 | 武汉中旗生物医疗电子有限公司 | Measurement of bldy temperature circuit automatic calibrating method and device |
| CN109358236A (en) * | 2018-10-16 | 2019-02-19 | Oppo广东移动通信有限公司 | For measuring the circuit and method of resistance |
| CN110470906A (en) * | 2018-05-10 | 2019-11-19 | 金一凡 | A kind of resistance meter |
| CN112098767A (en) * | 2020-11-18 | 2020-12-18 | 北京天创凯睿科技有限公司 | Safety detection circuit of ignition device and safety detection equipment of ignition device |
| CN114217113A (en) * | 2021-11-25 | 2022-03-22 | 广西电网有限责任公司电力科学研究院 | Improved direct current resistance box voltage comparison measurement method and system |
-
2012
- 2012-06-05 CN CN2012101878989A patent/CN102707146A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142226B (en) * | 2013-03-28 | 2016-03-02 | 苏州市豪杰机械电子设备有限公司 | Human body resistance method of testing |
| CN103142226A (en) * | 2013-03-28 | 2013-06-12 | 苏州市豪杰机械电子设备有限公司 | Human body resistance testing method |
| CN104181394A (en) * | 2013-05-23 | 2014-12-03 | 中国石油天然气集团公司 | Resistivity measurement method of rock and ore specimen |
| CN104181394B (en) * | 2013-05-23 | 2017-04-05 | 中国石油天然气集团公司 | A kind of rock and ore sample method of measuring resistivity |
| CN106124863A (en) * | 2016-09-01 | 2016-11-16 | 广东优科检测技术服务有限公司 | A kind of test circuit compensating resistance and method of testing |
| CN106124863B (en) * | 2016-09-01 | 2019-03-26 | 广东优科检测技术服务有限公司 | A kind of test circuit and test method compensating resistance |
| CN110470906A (en) * | 2018-05-10 | 2019-11-19 | 金一凡 | A kind of resistance meter |
| CN108844664A (en) * | 2018-08-20 | 2018-11-20 | 武汉中旗生物医疗电子有限公司 | Measurement of bldy temperature circuit automatic calibrating method and device |
| CN109358236A (en) * | 2018-10-16 | 2019-02-19 | Oppo广东移动通信有限公司 | For measuring the circuit and method of resistance |
| CN109358236B (en) * | 2018-10-16 | 2022-01-07 | Oppo广东移动通信有限公司 | Circuit and method for measuring resistance |
| CN112098767A (en) * | 2020-11-18 | 2020-12-18 | 北京天创凯睿科技有限公司 | Safety detection circuit of ignition device and safety detection equipment of ignition device |
| CN112098767B (en) * | 2020-11-18 | 2021-03-05 | 北京天创凯睿科技有限公司 | Safety detection circuit of ignition device and safety detection equipment of ignition device |
| CN114217113A (en) * | 2021-11-25 | 2022-03-22 | 广西电网有限责任公司电力科学研究院 | Improved direct current resistance box voltage comparison measurement method and system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121003 |