GB564181A - Electrical indicating instruments and scale adjustments therefor - Google Patents

Electrical indicating instruments and scale adjustments therefor

Info

Publication number
GB564181A
GB564181A GB9479/43A GB947943A GB564181A GB 564181 A GB564181 A GB 564181A GB 9479/43 A GB9479/43 A GB 9479/43A GB 947943 A GB947943 A GB 947943A GB 564181 A GB564181 A GB 564181A
Authority
GB
United Kingdom
Prior art keywords
coils
scale
rotor
potentiometer
june
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
GB9479/43A
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.)
SIMMONDS DEV CORP Ltd
Original Assignee
SIMMONDS DEV CORP 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 SIMMONDS DEV CORP Ltd filed Critical SIMMONDS DEV CORP Ltd
Publication of GB564181A publication Critical patent/GB564181A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R7/00—Instruments capable of converting two or more currents or voltages into a single mechanical displacement
    • G01R7/04—Instruments capable of converting two or more currents or voltages into a single mechanical displacement for forming a quotient
    • G01R7/06—Instruments capable of converting two or more currents or voltages into a single mechanical displacement for forming a quotient moving-iron type
    • 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)
  • Level Indicators Using A Float (AREA)

Abstract

564,181. Electric measuring systems. SIMMONDS DEVELOPMENT CORPORATION, Ltd. June 11, 1943, No. 9479. Convention date, June 12, 1942. [Class 40 (i)] [Also in Group XXXVI] An indicating instrument is provided with a cylindrical rotor permanently magnetized across a diameter, a cylindrical metallic damping member having a bore in which the rotor is located and a plurality of stationary deflecting coils having their flux axes at an angle to one another and at right angles to the rotor axis, these coils being detachably mounted between the bore and the periphery of the damping member. Fig. 1 is a diagram of connections showing the application of the instrument for remote indication of the level of liquid in a tank by a pointer 26 with a 90 degrees scale 28. A float 78 operates the movable contact 76 of a potentiometer 74, which is connected across a source of E.M.F. 44 and also across the deflecting coils 32, 33. The other ends of these coils are connected together and to the sliding contact 76. The scale adjusting coil 35 in series with a resistance 80 is also connected across the potentiometer, the resistance 80 being of such a value as to give approximately 90 degrees full scale deflection. Specification 544,168 is referred to.
GB9479/43A 1942-06-12 1943-06-11 Electrical indicating instruments and scale adjustments therefor Expired GB564181A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US564181XA 1942-06-12 1942-06-12

Publications (1)

Publication Number Publication Date
GB564181A true GB564181A (en) 1944-09-15

Family

ID=22004266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9479/43A Expired GB564181A (en) 1942-06-12 1943-06-11 Electrical indicating instruments and scale adjustments therefor

Country Status (1)

Country Link
GB (1) GB564181A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475215A1 (en) * 1980-02-04 1981-08-07 Jaeger LOGOMETER MEASUREMENT INDICATOR AND ELECTRICAL SENSOR
GB2128343A (en) * 1982-10-14 1984-04-26 Butler Howard Ltd Moving-magnet meters
FR2747196A1 (en) * 1996-04-05 1997-10-10 Magneti Marelli France MOTOR DEVICE WITH ELECTROMAGNETIC CONTROL, ESPECIALLY LOGOMETER

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475215A1 (en) * 1980-02-04 1981-08-07 Jaeger LOGOMETER MEASUREMENT INDICATOR AND ELECTRICAL SENSOR
GB2128343A (en) * 1982-10-14 1984-04-26 Butler Howard Ltd Moving-magnet meters
FR2747196A1 (en) * 1996-04-05 1997-10-10 Magneti Marelli France MOTOR DEVICE WITH ELECTROMAGNETIC CONTROL, ESPECIALLY LOGOMETER
WO1997038319A1 (en) * 1996-04-05 1997-10-16 Magneti Marelli France Electromagnetic control motor device, particularly a ratio metre
US6124774A (en) * 1996-04-05 2000-09-26 Magneti Marelli France Electromagnetic control motor device, particularly a ratio meter

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