CN106872897A - Constant-current discharge formula internal resistance of cell instrument - Google Patents
Constant-current discharge formula internal resistance of cell instrument Download PDFInfo
- Publication number
- CN106872897A CN106872897A CN201510920102.XA CN201510920102A CN106872897A CN 106872897 A CN106872897 A CN 106872897A CN 201510920102 A CN201510920102 A CN 201510920102A CN 106872897 A CN106872897 A CN 106872897A
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- CN
- China
- Prior art keywords
- current discharge
- singlechip controller
- module
- constant current
- internal resistance
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
Abstract
The present invention relates to a kind of constant-current discharge formula internal resistance of cell instrument, mesuring battary (1) is connected with pulse constant current discharge module (2), pulse constant current discharge module (2) is connected with singlechip controller (6), pulse constant current discharge module (2) is connected by coupled capacitor (3) with signal amplifier (4), signal amplifier (4) is connected with AD conversion module (5), AD conversion module (5) is connected with singlechip controller (6), serial communication module (7) is connected with singlechip controller (6), liquid crystal display (8) is connected with singlechip controller (6), power supply (9) is connected with singlechip controller (6).
Description
Technical field
The present invention relates to a kind of constant-current discharge formula internal resistance of cell instrument, belong to instrument field.
Background technology
Currently, the measurement internal resistance of cell judges of crucial importance to battery performance, and because the internal resistance of cell is smaller, measurement is accomplished by for specific process.
The content of the invention
The present invention relates to a kind of constant-current discharge formula internal resistance of cell instrument, to realize measuring the purpose of the internal resistance of cell.
To realize above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of constant-current discharge formula internal resistance of cell instrument, comprising：Battery (1), pulse constant current discharge module (2), coupled capacitor (3), signal amplifier (4), AD conversion module (5), singlechip controller (6), serial communication module (7), liquid crystal display (8), power supply (9)；As shown in Figure 1.
Below in conjunction with accompanying drawing, technical construction of the invention and method are illustrated：Mesuring battary (1) is connected with pulse constant current discharge module (2),Pulse constant current discharge module (2) is connected with singlechip controller (6),Pulse constant current discharge module (2) is connected by coupled capacitor (3) with signal amplifier (4),Signal amplifier (4) is connected with AD conversion module (5),AD conversion module (5) is connected with singlechip controller (6),Serial communication module (7) is connected with singlechip controller (6),Liquid crystal display (8) is connected with singlechip controller (6),Power supply (9) is connected with singlechip controller (6),Mesuring battary (1) must be the battery for having electricity,Because the system is measured using discharge type,Pulse constant current discharge module (2) is controlled by singlechip controller (6),Constant-current pulse electric discharge is carried out to battery (1),After coupled capacitor (3) to be sent into signal amplifier (4) amplification by AC response signal,Data signal is switched to by AD conversion module (5) again,Finally in feeding singlechip controller (6),Digital measurement is shown by liquid crystal display (8) by singlechip controller (6),Serial communication module (7) is used when being and setting instrument parameter,Also can be to third party device output data.
Beneficial effects of the present invention：Simple structure, measurement are rapid, intuitive display.
Brief description of the drawings：
Accompanying drawing 1 is structural representation of the invention.
Specific embodiment：
In order that technical scheme becomes more apparent, below in conjunction with drawings and Examples, the present invention is described in more detail, instantiation described herein, is only used to explain the present invention, is not intended to limit the invention.
Embodiment：
Refer to shown in accompanying drawing 1,Mesuring battary (1) is connected with pulse constant current discharge module (2),Pulse constant current discharge module (2) is connected with singlechip controller (6),Pulse constant current discharge module (2) is connected by coupled capacitor (3) with signal amplifier (4),Signal amplifier (4) is connected with AD conversion module (5),AD conversion module (5) is connected with singlechip controller (6),Serial communication module (7) is connected with singlechip controller (6),Liquid crystal display (8) is connected with singlechip controller (6),Power supply (9) is connected with singlechip controller (6),Mesuring battary (1) must be the battery for having electricity,Because the system is measured using discharge type,Pulse constant current discharge module (2) is controlled by singlechip controller (6),Constant-current pulse electric discharge is carried out to battery (1),After coupled capacitor (3) to be sent into signal amplifier (4) amplification by AC response signal,Data signal is switched to by AD conversion module (5) again,Finally in feeding singlechip controller (6),Digital measurement is shown by liquid crystal display (8) by singlechip controller (6),Serial communication module (7) is used when being and setting instrument parameter,Also can be to third party device output data.
Claims (1)
1. a kind of constant-current discharge formula internal resistance of cell instrument, comprising：Battery (1), pulse constant current discharge module (2), coupled capacitor (3), signal amplifier (4), AD conversion module (5), singlechip controller (6), serial communication module (7), liquid crystal display (8), power supply (9)；It is characterized in that：Mesuring battary (1) is connected with pulse constant current discharge module (2), pulse constant current discharge module (2) is connected with singlechip controller (6), pulse constant current discharge module (2) is connected by coupled capacitor (3) with signal amplifier (4), signal amplifier (4) is connected with AD conversion module (5), AD conversion module (5) is connected with singlechip controller (6), serial communication module (7) is connected with singlechip controller (6), liquid crystal display (8) is connected with singlechip controller (6), power supply (9) is connected with singlechip controller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920102.XA CN106872897A (en) | 2015-12-14 | 2015-12-14 | Constant-current discharge formula internal resistance of cell instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920102.XA CN106872897A (en) | 2015-12-14 | 2015-12-14 | Constant-current discharge formula internal resistance of cell instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106872897A true CN106872897A (en) | 2017-06-20 |
Family
ID=59178693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510920102.XA Pending CN106872897A (en) | 2015-12-14 | 2015-12-14 | Constant-current discharge formula internal resistance of cell instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106872897A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406516A (en) * | 2021-07-16 | 2021-09-17 | 山东泰开自动化有限公司 | Storage battery internal resistance on-line monitoring device based on low-current pulse discharge method |
-
2015
- 2015-12-14 CN CN201510920102.XA patent/CN106872897A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406516A (en) * | 2021-07-16 | 2021-09-17 | 山东泰开自动化有限公司 | Storage battery internal resistance on-line monitoring device based on low-current pulse discharge method |
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| SE01 | Entry into force of request for substantive examination |