GB541686A - Improvements in means for testing electric batteries - Google Patents

Improvements in means for testing electric batteries

Info

Publication number
GB541686A
GB541686A GB9401/40A GB940140A GB541686A GB 541686 A GB541686 A GB 541686A GB 9401/40 A GB9401/40 A GB 9401/40A GB 940140 A GB940140 A GB 940140A GB 541686 A GB541686 A GB 541686A
Authority
GB
United Kingdom
Prior art keywords
contacts
resistance
battery
meter
sets
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.)
Expired
Application number
GB9401/40A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9401/40A priority Critical patent/GB541686A/en
Publication of GB541686A publication Critical patent/GB541686A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

541,686. Measuring voltage. ROBERTS, J. May 29, 1940, No. 9401. [Class 37] In an instrument for testing the condition of a battery by measuring its internal drop (the difference between its open-circuit e.m.f. and its terminal voltage when loaded up to, or above, its maximum discharge current); the voltmetercircuit is independent of the loading-resistance circuit so as to include the volt-drop at the contact between meter and battery terminals, but exclude that between the latter and the resistance connection. The meter 15 is connected between contacts 9, 10 insulated at 11, 12 from contacts 3, 4 between which the resistance 8 is connected. The contacts 9, 10 are shown as spring plungers, whereby, by depressing the handle 7, both sets of contacts may engage the battery-terminals. Alternatively, both sets of contacts may be fixed and the instrument itself manipulated for obtaining the two readings. The resistance may be variable, or of fixed value but removable from its contacts 3, 4 or interchangeable as by contacts 3, 4 being removably mounted on carrier members, Fig. 2 (not shown).
GB9401/40A 1940-05-29 1940-05-29 Improvements in means for testing electric batteries Expired GB541686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9401/40A GB541686A (en) 1940-05-29 1940-05-29 Improvements in means for testing electric batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9401/40A GB541686A (en) 1940-05-29 1940-05-29 Improvements in means for testing electric batteries

Publications (1)

Publication Number Publication Date
GB541686A true GB541686A (en) 1941-12-08

Family

ID=9871261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9401/40A Expired GB541686A (en) 1940-05-29 1940-05-29 Improvements in means for testing electric batteries

Country Status (1)

Country Link
GB (1) GB541686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690544A (en) * 1952-06-30 1954-09-28 Gen Motors Corp Battery tester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690544A (en) * 1952-06-30 1954-09-28 Gen Motors Corp Battery tester

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