CN104122451A - Direct-current internal resistance measurement method for storage battery - Google Patents
Direct-current internal resistance measurement method for storage battery Download PDFInfo
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- CN104122451A CN104122451A CN201410320075.8A CN201410320075A CN104122451A CN 104122451 A CN104122451 A CN 104122451A CN 201410320075 A CN201410320075 A CN 201410320075A CN 104122451 A CN104122451 A CN 104122451A
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- internal resistance
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- storage battery
- resistance measurement
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Abstract
The invention discloses a direct-current internal resistance measurement method for a storage battery. According to the direct-current internal resistance measurement method, voltage sampling and current sampling are input to a digital multiplier by a voltage A/D converter and a current A/D converter respectively, the data output by the digital multiplier is processed by a RAM+FPGA processing module, and a measurement value is displayed by an active power and direct-current internal resistance display. The direct-current internal resistance measurement method disclosed by the invention is capable of measuring the direct-current resistance of the storage battery, feasible, accurate in measurement, simple in circuit, and suitable for being applied as a method for a direct-current resistance measurement for a storage battery.
Description
Technical field
What the present invention proposed is a kind of accumulator DC internal resistance measuring method of power measurement field application.
Background technology
The DC internal resistance of accumulator determines the output electric weight of accumulator, but the DC internal resistance of accumulator all cannot measure conventionally, the method that therefore need to measure accumulator DC resistance for.
Summary of the invention
In order to measure the direct current resistance of accumulator, the present invention proposes a kind of accumulator DC resistance measuring method.The method utilizes processing module to process electric current and the voltage sampling signal of digital multiplier, carries out the data output of active power and DC internal resistance, solves the technical matters that accumulator DC resistance is measured.
The scheme that technical solution problem of the present invention adopts is:
Voltage sample and current sample input to respectively digital multiplier by voltage A/D converter and electric current A/D converter respectively, the data of digital multiplier output are processed via RAM+FPGA processing module, via active power and DC internal resistance value display display measurement value.
Good effect, the present invention can measure accumulator DC resistance, and method is feasible, measures accurately, and circuit is simple.The suitable method application that resistance is measured as accumulator DC.
Accompanying drawing explanation
Fig. 1 is DC internal resistance measuring process method block diagram of the present invention
In figure, 1. voltage sample, 2. voltage A/D conversion, 3. current sample, 4. electric current A/D conversion, 5. digital multiplier, 6.RAM+FPGA processing module, 7. active power display, 8. DC internal resistance display.
Embodiment
According to the route shown in Fig. 1, voltage sample 1 and current sample 3 input to respectively digital multiplier 5 by voltage A/D converter 2 and electric current A/D converter 4 respectively, the data of digital multiplier output are processed via RAM+FPGA processing module 6, via active power 7 and DC internal resistance, are worth 8 display display measurement values.
Principle of work of the present invention:
The A/D conversion chip AD7805 of RAM+FPGA processing module, parallel port,, variable program operational amplifier PGA205 forms, the voltage signal at constant current source signal and accumulator two ends is delivered to respectively to voltage input end and current input terminal, by operational amplifier PGA205, input signal is amplified and delivers to A/D conversion chip again, AD7805 is converted to simulating signal the digital signal of 16, RAM+FPGA processing module adopts this two ways of digital signals, obtains the internal resistance value of accumulator by active power.
Claims (1)
1. an accumulator DC internal resistance measuring method, is characterized in that:
Voltage sample (1) and current sample (3) input to respectively digital multiplier (5) by voltage A/D converter (2) and electric current A/D converter (4) respectively, the data of digital multiplier output are processed via RAM+FPGA processing module (6), via active power (7) and DC internal resistance value (8) display display measurement value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320075.8A CN104122451A (en) | 2014-07-08 | 2014-07-08 | Direct-current internal resistance measurement method for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410320075.8A CN104122451A (en) | 2014-07-08 | 2014-07-08 | Direct-current internal resistance measurement method for storage battery |
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| Publication Number | Publication Date |
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| CN104122451A true CN104122451A (en) | 2014-10-29 |
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| CN201410320075.8A Pending CN104122451A (en) | 2014-07-08 | 2014-07-08 | Direct-current internal resistance measurement method for storage battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849565A (en) * | 2015-05-26 | 2015-08-19 | 深圳市共济科技有限公司 | Internal resistance detection circuit of lead storage battery |
| CN105891603A (en) * | 2014-12-12 | 2016-08-24 | 广西大学 | Method for measurement of battery direct current internal resistance based on charger |
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| JPH10197613A (en) * | 1997-01-14 | 1998-07-31 | Fujitsu Denso Ltd | Method for measuring internal resistance |
| CN101339214A (en) * | 2008-08-19 | 2009-01-07 | 河北天翼科贸发展有限公司 | Accumulator internal resistance measurement method |
| CN201266219Y (en) * | 2008-07-03 | 2009-07-01 | 河北天翼科贸发展有限公司 | Accumulator internal resistance tester |
| CN201293825Y (en) * | 2008-07-22 | 2009-08-19 | 比亚迪股份有限公司 | Device for testing battery internal resistance |
| CN201532446U (en) * | 2009-07-09 | 2010-07-21 | 山东艾诺仪器有限公司 | Battery inherent resistance testing device |
| CN201589816U (en) * | 2009-12-24 | 2010-09-22 | 天津华云自控股份有限公司 | Simple device for measuring internal resistance of storage battery |
| CN102313843A (en) * | 2010-06-30 | 2012-01-11 | 三洋电机株式会社 | The detection method of the internal resistance of cell |
| CN102393508A (en) * | 2011-09-30 | 2012-03-28 | 湖南大学 | Nondestructive diagnosis of battery performance |
| CN103376361A (en) * | 2012-04-24 | 2013-10-30 | 横河电机株式会社 | Battery direct current resistance evaluation system |
-
2014
- 2014-07-08 CN CN201410320075.8A patent/CN104122451A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10197613A (en) * | 1997-01-14 | 1998-07-31 | Fujitsu Denso Ltd | Method for measuring internal resistance |
| CN201266219Y (en) * | 2008-07-03 | 2009-07-01 | 河北天翼科贸发展有限公司 | Accumulator internal resistance tester |
| CN201293825Y (en) * | 2008-07-22 | 2009-08-19 | 比亚迪股份有限公司 | Device for testing battery internal resistance |
| CN101339214A (en) * | 2008-08-19 | 2009-01-07 | 河北天翼科贸发展有限公司 | Accumulator internal resistance measurement method |
| CN201532446U (en) * | 2009-07-09 | 2010-07-21 | 山东艾诺仪器有限公司 | Battery inherent resistance testing device |
| CN201589816U (en) * | 2009-12-24 | 2010-09-22 | 天津华云自控股份有限公司 | Simple device for measuring internal resistance of storage battery |
| CN102313843A (en) * | 2010-06-30 | 2012-01-11 | 三洋电机株式会社 | The detection method of the internal resistance of cell |
| CN102393508A (en) * | 2011-09-30 | 2012-03-28 | 湖南大学 | Nondestructive diagnosis of battery performance |
| CN103376361A (en) * | 2012-04-24 | 2013-10-30 | 横河电机株式会社 | Battery direct current resistance evaluation system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891603A (en) * | 2014-12-12 | 2016-08-24 | 广西大学 | Method for measurement of battery direct current internal resistance based on charger |
| CN104849565A (en) * | 2015-05-26 | 2015-08-19 | 深圳市共济科技有限公司 | Internal resistance detection circuit of lead storage battery |
| CN104849565B (en) * | 2015-05-26 | 2017-12-26 | 深圳市共济科技股份有限公司 | A kind of lead accumulator internal resistance detection circuit |
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Application publication date: 20141029 |