GB888912A - Improvements relating to the gauging of electrical resistivity - Google Patents

Improvements relating to the gauging of electrical resistivity

Info

Publication number
GB888912A
GB888912A GB3612059A GB3612059A GB888912A GB 888912 A GB888912 A GB 888912A GB 3612059 A GB3612059 A GB 3612059A GB 3612059 A GB3612059 A GB 3612059A GB 888912 A GB888912 A GB 888912A
Authority
GB
United Kingdom
Prior art keywords
lamps
gauging
striking
oct
pair
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
GB3612059A
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.)
PERCIVAL HENRY MAIN
Original Assignee
PERCIVAL HENRY MAIN
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 PERCIVAL HENRY MAIN filed Critical PERCIVAL HENRY MAIN
Priority to GB3612059A priority Critical patent/GB888912A/en
Publication of GB888912A publication Critical patent/GB888912A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

888,912. Electric resistance measurements; determining physical qualities of materials. MAIN, P. H. Oct. 26, 1960 [Oct. 26, 1959], No. 36120/59. Class 37. An electric resistance tester to identify resistance values within a range and particularly suitable for gauging moisture content of soil or timber, includes a source 4 of striking potential and a pair 3a, 3b, of parallel connected neon or other gas-discharge lamps, having individual associated series resistors 5a, 5b, and test prods 1, 2, in series, the lamps having different striking voltages lower than that of said potential source. To avoid the lower voltage lamp operating at a reduced intensity, where higher resistances are being tested, a shunt resistor across the lamp may be included. To identify resistance values as lying within a particular one of two or more ranges one or more further lamps with individual series resistors in parallel with the pair of lamps, and having higher striking voltages, may be included.
GB3612059A 1959-10-26 1959-10-26 Improvements relating to the gauging of electrical resistivity Expired GB888912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3612059A GB888912A (en) 1959-10-26 1959-10-26 Improvements relating to the gauging of electrical resistivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3612059A GB888912A (en) 1959-10-26 1959-10-26 Improvements relating to the gauging of electrical resistivity

Publications (1)

Publication Number Publication Date
GB888912A true GB888912A (en) 1962-02-07

Family

ID=10385169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3612059A Expired GB888912A (en) 1959-10-26 1959-10-26 Improvements relating to the gauging of electrical resistivity

Country Status (1)

Country Link
GB (1) GB888912A (en)

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