JPS5619438A - Detector for specific gravity of battery electrolyte - Google Patents
Detector for specific gravity of battery electrolyteInfo
- Publication number
- JPS5619438A JPS5619438A JP9567879A JP9567879A JPS5619438A JP S5619438 A JPS5619438 A JP S5619438A JP 9567879 A JP9567879 A JP 9567879A JP 9567879 A JP9567879 A JP 9567879A JP S5619438 A JPS5619438 A JP S5619438A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- support part
- light
- specific
- specific gravity
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Secondary Cells (AREA)
Abstract
PURPOSE:To improve the precision of specific-gravity measurement by reducing a measured-temperature error by employing structure of high heat transmitting resistance for the support part of a main equipment body. CONSTITUTION:Main equipment body 18 consists of light emitting diode 9, measuring prism 12, reflecting mirror 13, phototransistor 15, heat-sensing element 16, etc. This main body 18 is supported by battery cover 2 through support part 19. Internally reflected light Li of light Ls from light emitting diode 9 varies with the specific gravity of electrolyte 4. Although this changed quantity of light is used to fine the specific gravity by fixed arithmetic, the reflective index of electrolyte 4 varies with temperature. To prevent the variation, support part 19 is separated from main body 18 and made of a material small in heat transfer coefficient with its sectional area reduced. Consequently, a difference between the measurement temperature of heat sensing element 16 and a liquid temperature is eliminated, and consequently the precision of specific-gravity measurement can be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9567879A JPS5619438A (en) | 1979-07-26 | 1979-07-26 | Detector for specific gravity of battery electrolyte |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9567879A JPS5619438A (en) | 1979-07-26 | 1979-07-26 | Detector for specific gravity of battery electrolyte |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5619438A true JPS5619438A (en) | 1981-02-24 |
Family
ID=14144153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9567879A Pending JPS5619438A (en) | 1979-07-26 | 1979-07-26 | Detector for specific gravity of battery electrolyte |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5619438A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6021176U (en) * | 1983-07-19 | 1985-02-14 | 日本電池株式会社 | Electrode type lead battery specific gravity sensor |
JPS6195190A (en) * | 1984-10-17 | 1986-05-13 | 鹿島建設株式会社 | Operation system of blind |
JPS6339815U (en) * | 1986-09-01 | 1988-03-15 | ||
JPH0327340U (en) * | 1989-07-26 | 1991-03-19 |
-
1979
- 1979-07-26 JP JP9567879A patent/JPS5619438A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6021176U (en) * | 1983-07-19 | 1985-02-14 | 日本電池株式会社 | Electrode type lead battery specific gravity sensor |
JPH051902Y2 (en) * | 1983-07-19 | 1993-01-19 | ||
JPS6195190A (en) * | 1984-10-17 | 1986-05-13 | 鹿島建設株式会社 | Operation system of blind |
JPH0543838B2 (en) * | 1984-10-17 | 1993-07-02 | Kajima Construction Corp | |
JPS6339815U (en) * | 1986-09-01 | 1988-03-15 | ||
JPH0327340U (en) * | 1989-07-26 | 1991-03-19 |
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