GB546468A - Improvements in electric ratiometers - Google Patents

Improvements in electric ratiometers

Info

Publication number
GB546468A
GB546468A GB1747440A GB1747440A GB546468A GB 546468 A GB546468 A GB 546468A GB 1747440 A GB1747440 A GB 1747440A GB 1747440 A GB1747440 A GB 1747440A GB 546468 A GB546468 A GB 546468A
Authority
GB
United Kingdom
Prior art keywords
core
cylindrical
space
coils
move
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
GB1747440A
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.)
S Smith and Sons Ltd
S Smith and Sons Motor Accesories Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons Motor Accesories Ltd
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 S Smith and Sons Ltd, S Smith and Sons Motor Accesories Ltd filed Critical S Smith and Sons Ltd
Priority to GB1747440A priority Critical patent/GB546468A/en
Publication of GB546468A publication Critical patent/GB546468A/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
    • G01R27/08—Measuring resistance by measuring both voltage and current
    • G01R27/10—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient
    • G01R27/12—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient using hand generators, e.g. meggers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

546,468. Resistances and current measurements. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and KLEPP, E. C. Dec. 9, 1940. [Class 37] In a moving coil ratiometer, the coils 12, 13 are arranged to move through a magnetic field the intensity of which varies along their path, whereby for a given ratio of currents flowing through them they will move to that location where the electromotive forces resulting respectively from the different current densities and different field strengths balance one another. As shown, Fig. 2, the core 15 is disposed in an elliptical space 17 between the pole pieces 18, 19. In a modification, Fig. 3, the space between the pole pieces is cylindrical and the core elliptical in cross-section and in a further modification, Fig. 4, the coils are disposed with their planes parallel but on opposite sides of the core which is cylindrical in shape and spaced to one side of the axis of the cylindrical space.
GB1747440A 1940-12-09 1940-12-09 Improvements in electric ratiometers Expired GB546468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1747440A GB546468A (en) 1940-12-09 1940-12-09 Improvements in electric ratiometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1747440A GB546468A (en) 1940-12-09 1940-12-09 Improvements in electric ratiometers

Publications (1)

Publication Number Publication Date
GB546468A true GB546468A (en) 1942-07-15

Family

ID=10095797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1747440A Expired GB546468A (en) 1940-12-09 1940-12-09 Improvements in electric ratiometers

Country Status (1)

Country Link
GB (1) GB546468A (en)

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