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GB875785A - Electrically operated apparatus for remote measuring - Google Patents

Electrically operated apparatus for remote measuring

Info

Publication number
GB875785A
GB875785A GB15627/60A GB1562760A GB875785A GB 875785 A GB875785 A GB 875785A GB 15627/60 A GB15627/60 A GB 15627/60A GB 1562760 A GB1562760 A GB 1562760A GB 875785 A GB875785 A GB 875785A
Authority
GB
United Kingdom
Prior art keywords
variable
armature
motor
electrically operated
value
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
GB15627/60A
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.)
Schneider Electric Systems USA Inc
Original Assignee
Foxboro Co
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 Foxboro Co filed Critical Foxboro Co
Publication of GB875785A publication Critical patent/GB875785A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02Arrangements in which the value to be measured is automatically compared with a reference value
    • G01R17/06Automatic balancing arrangements
    • G01R17/08Automatic balancing arrangements in which a force or torque representing the measured value is balanced by a force or torque representing the reference value

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Control Of Direct Current Motors (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

875,785. Electric measuring systems. FOXBORO CO. May 3, 1960 [May 4, 1959], No. 15627/60. Class 40 (1). [Also in Group XL (c)] The value of a variable is measured electrically and transmitted to a remote station as a proportional direct current by causing the variable to displace the armature 34 of a variable coupling transformer 30 located in the feedback circuit of a transistor oscillator 22, the output current being fed through transformer 66, fullwave rectifier 74, 76, filter 80, 82, 84 and transistor amplifiers 52, 54 to a motor 100 which repositions the armature 34. The D.C. through motor 100 at balance is indicative of the value of the variable. The power for the system and the meter 16 carrying the signal current are located at a remote station, linked to the main apparatus by lines 14 which carry both the P.D. required for the transistors and the signal current. Specification 871,669 is referred to.
GB15627/60A 1959-05-04 1960-05-03 Electrically operated apparatus for remote measuring Expired GB875785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US875785XA 1959-05-04 1959-05-04

Publications (1)

Publication Number Publication Date
GB875785A true GB875785A (en) 1961-08-23

Family

ID=22206010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15627/60A Expired GB875785A (en) 1959-05-04 1960-05-03 Electrically operated apparatus for remote measuring

Country Status (1)

Country Link
GB (1) GB875785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166312A (en) * 1984-10-22 1986-04-30 Gigabit Logic Inc Capacitor diode level shift circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166312A (en) * 1984-10-22 1986-04-30 Gigabit Logic Inc Capacitor diode level shift circuit

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