JPS5553878A - Electrolyte-concentration detector for lead storage battery - Google Patents
Electrolyte-concentration detector for lead storage batteryInfo
- Publication number
- JPS5553878A JPS5553878A JP12775678A JP12775678A JPS5553878A JP S5553878 A JPS5553878 A JP S5553878A JP 12775678 A JP12775678 A JP 12775678A JP 12775678 A JP12775678 A JP 12775678A JP S5553878 A JPS5553878 A JP S5553878A
- Authority
- JP
- Japan
- Prior art keywords
- light
- electrolyte
- concentration
- prism
- array
- 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.)
- Granted
Links
Classifications
-
- Y02E60/12—
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
- Secondary Cells (AREA)
Abstract
PURPOSE: To detect the electrolyte-concentration with high precision without being influenced by the variations and fluctuations of the electrolyte surface, by receiving the light reflected from the bottom surface of a prism contacting the electrolyte by an array of light receiving elements, and detecting the change of the index of refraction of the electrolyte due to the change of the electrolyte-concentration.
CONSTITUTION: The detector is formed of a point light-source 1, a slit 2 for limiting the angle of the light emitted from this light-source, a prism 3 having a bottom surface in contact with the electrolyte 4, and an array of light-receiving elements 5. If the angle of incidence of the light incident upon the bottom surface of the prism 3 at a point β' is just equal to the critical angle between the prism and the sulfuric acid at that time, the light quantity received by the array of light-receiving elements 5 suddenly increases from a point β where the critical angle condition is established. Thus, when the concentration of the sulfuric acid, and hence the index of refraction thereof and said critical angle are changed, the position of the light- receiving element from which the received light quantity suddenly increases is also changed, so that this can be utilized to detect the electrolyte-concentration with high precision.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53127756A JPS5822867B2 (en) | 1978-10-16 | 1978-10-16 | Electrolyte concentration detector for lead-acid batteries |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53127756A JPS5822867B2 (en) | 1978-10-16 | 1978-10-16 | Electrolyte concentration detector for lead-acid batteries |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5553878A true JPS5553878A (en) | 1980-04-19 |
JPS5822867B2 JPS5822867B2 (en) | 1983-05-11 |
Family
ID=14967903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53127756A Expired JPS5822867B2 (en) | 1978-10-16 | 1978-10-16 | Electrolyte concentration detector for lead-acid batteries |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5822867B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3402374A1 (en) * | 1984-01-25 | 1985-08-01 | Wolfgang Dr. 7000 Stuttgart Ruhrmann | Device for indicating the charge state of an accumulator battery |
JPS62177872A (en) * | 1986-01-31 | 1987-08-04 | Honda Motor Co Ltd | Method of measuring extent of battery charge |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3508973A (en) * | 1967-03-06 | 1970-04-28 | Lucas Industries Ltd | Remote indication of the specific gravity of battery electrolyte |
JPS5254135A (en) * | 1975-10-28 | 1977-05-02 | Yuasa Battery Co Ltd | Battery |
-
1978
- 1978-10-16 JP JP53127756A patent/JPS5822867B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3508973A (en) * | 1967-03-06 | 1970-04-28 | Lucas Industries Ltd | Remote indication of the specific gravity of battery electrolyte |
JPS5254135A (en) * | 1975-10-28 | 1977-05-02 | Yuasa Battery Co Ltd | Battery |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3402374A1 (en) * | 1984-01-25 | 1985-08-01 | Wolfgang Dr. 7000 Stuttgart Ruhrmann | Device for indicating the charge state of an accumulator battery |
DE3402374C2 (en) * | 1984-01-25 | 1986-02-13 | Wolfgang Dr. 7000 Stuttgart Ruhrmann | Device for displaying the charge level of an accumulator battery |
JPS62177872A (en) * | 1986-01-31 | 1987-08-04 | Honda Motor Co Ltd | Method of measuring extent of battery charge |
Also Published As
Publication number | Publication date |
---|---|
JPS5822867B2 (en) | 1983-05-11 |
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