JPS5619438A - Detector for specific gravity of battery electrolyte - Google Patents

Detector for specific gravity of battery electrolyte

Info

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
Application number
JP9567879A
Other languages
Japanese (ja)
Inventor
Hiroshi Uramoto
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.)
Yuasa Corp
Original Assignee
Yuasa Battery Corp
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 Yuasa Battery Corp filed Critical Yuasa Battery Corp
Priority to JP9567879A priority Critical patent/JPS5619438A/en
Publication of JPS5619438A publication Critical patent/JPS5619438A/en
Pending legal-status Critical Current

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.
JP9567879A 1979-07-26 1979-07-26 Detector for specific gravity of battery electrolyte Pending JPS5619438A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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