CN104122451A - Direct-current internal resistance measurement method for storage battery - Google Patents

Direct-current internal resistance measurement method for storage battery Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
internal resistance
direct
current
storage battery
resistance measurement
Prior art date
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.)
Pending
Application number
CN201410320075.8A
Other languages
Chinese (zh)
Inventor
王志宏
张久军
赵广忠
韩汝军
吴剑男
常亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410320075.8A priority Critical patent/CN104122451A/en
Publication of CN104122451A publication Critical patent/CN104122451A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

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

A kind of accumulator DC internal resistance measuring method
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.
CN201410320075.8A 2014-07-08 2014-07-08 Direct-current internal resistance measurement method for storage battery Pending CN104122451A (en)

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
CN201410320075.8A CN104122451A (en) 2014-07-08 2014-07-08 Direct-current internal resistance measurement method for storage battery

Publications (1)

Publication Number Publication Date
CN104122451A true CN104122451A (en) 2014-10-29

Family

ID=51767941

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410320075.8A Pending CN104122451A (en) 2014-07-08 2014-07-08 Direct-current internal resistance measurement method for storage battery

Country Status (1)

Country Link
CN (1) CN104122451A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
EP4241668A3 (en) Apparatus and method for electrodermal activity measurement with current compensation
WO2008106550A3 (en) Impedance measurement of a power line
EP2709271A3 (en) Quiescent current determination using in-package voltage measurements
EP2722677A3 (en) Active shunt ammeter apparatus and method
EP3462199A3 (en) Battery pack diagnostic apparatus
EP2868264A3 (en) System and method for acquisition of biopotential signals with electrode-tissue impedance measurement.
CN101655408B (en) Detection circuit for non-common mode voltage strain bridge signal
CN104122451A (en) Direct-current internal resistance measurement method for storage battery
EP3026446A3 (en) Electrical current system including voltage drop component
CN103528492A (en) Signal converter of high-measurement-range submicron-level high-precision LVDT (linear variable differential transformer) displacement sensor
CN203930003U (en) A kind of simulating signal excitation system for chip detection
CN104568261A (en) Digital strain torque sensor on basis of multifunctional signal conditioning system
CN202421385U (en) Portable transformer tester
CN205229184U (en) Piezoelectric acceleration sensor signal conversion circuit of electric current source forcing
CN204536424U (en) A kind of conductivity measuring apparatus based on frequency selection method
CN202393834U (en) Precise ohmic internal resistance measurer for battery
RU2014141665A (en) AUTOMATED SYSTEM OF DYNAMIC EVALUATION OF POWER EQUIPMENT EFFICIENCY
CN104880586A (en) High-power function generator and generation method
CN204115901U (en) Electric thermo-couple temperature collection system
CN105092008A (en) Electronic scale
CN103575977A (en) Power test circuit
CN204142837U (en) Portable online resistance conductance detector
CN204649825U (en) Based on the high speed true effective value rectifying system of FPGA
CN204028157U (en) A kind of convert of capacitor to voltage circuit
CN103063928A (en) System for testing earth grounding resistance, and digital coherent detection method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20141029