GB1398184A - Sensing apparatus - Google Patents

Sensing apparatus

Info

Publication number
GB1398184A
GB1398184A GB2824372A GB2824372A GB1398184A GB 1398184 A GB1398184 A GB 1398184A GB 2824372 A GB2824372 A GB 2824372A GB 2824372 A GB2824372 A GB 2824372A GB 1398184 A GB1398184 A GB 1398184A
Authority
GB
United Kingdom
Prior art keywords
current
circuit
component
transistor
log
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
GB2824372A
Other languages
English (en)
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1398184A publication Critical patent/GB1398184A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/02—Measuring effective values, i.e. root-mean-square values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Volume Flow (AREA)
GB2824372A 1971-07-23 1972-06-16 Sensing apparatus Expired GB1398184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16546271A 1971-07-23 1971-07-23

Publications (1)

Publication Number Publication Date
GB1398184A true GB1398184A (en) 1975-06-18

Family

ID=22598991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2824372A Expired GB1398184A (en) 1971-07-23 1972-06-16 Sensing apparatus

Country Status (9)

Country Link
US (1) US3743949A (https=)
JP (1) JPS5744945B1 (https=)
BR (1) BR7204883D0 (https=)
CA (1) CA951793A (https=)
DE (1) DE2235944A1 (https=)
ES (1) ES404957A1 (https=)
FR (1) FR2147140B1 (https=)
GB (1) GB1398184A (https=)
IT (1) IT962856B (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183048A (en) * 1985-11-11 1987-05-28 British Gas Plc Method and apparatus for testing AC generators
WO1997020369A1 (en) * 1995-12-01 1997-06-05 Berg Technology, Inc. Method of making smooth contact terminals

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027240A (en) * 1975-10-20 1977-05-31 The United States Of America As Represented By The Secretary Of The Navy Protected voltage meter
US4218736A (en) * 1978-04-03 1980-08-19 Takeda Riken Kogyo Kabushikikaisha Effective value measuring apparatus
JPS556066A (en) * 1978-06-29 1980-01-17 Seiko Epson Corp Production of fluid passage
US4375038A (en) * 1979-08-10 1983-02-22 Beckman Instruments, Inc. RMS Converter
CN1020816C (zh) * 1990-05-08 1993-05-19 董献之 平方器
GB2262350B (en) * 1991-11-22 1995-11-08 Multiload Technolgy Ltd RMS Waveform sensing
WO1996024070A1 (en) * 1995-01-30 1996-08-08 Landis & Gyr Utilities Services, Inc. Method of sizing transformers in an electrical utility service
US7731856B2 (en) 2003-07-25 2010-06-08 Waste 2 Green, Llc Method and system for treating waste matter from animals, urea-rich and urea-lean waste-matter products, and uses thereof
CN102207518A (zh) * 2011-03-11 2011-10-05 华为技术有限公司 一种交流电压有效值检测方法和装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070302A (en) * 1958-08-15 1962-12-25 Phillips Petroleum Co Flow computer
US3064192A (en) * 1959-03-10 1962-11-13 Gen Electronic Lab Inc Electric meter
US3197626A (en) * 1962-01-08 1965-07-27 Chrysler Corp Logarithmic multiplier-divider
US3281689A (en) * 1962-03-26 1966-10-25 Expando Meter Company R. m. s. meter circuit using linear resistors and voltage biased diodes to approximate the square law characteristic
FR1486264A (https=) * 1965-07-08 1967-10-05
US3423578A (en) * 1966-08-29 1969-01-21 Chrysler Corp True root-mean-square computing circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183048A (en) * 1985-11-11 1987-05-28 British Gas Plc Method and apparatus for testing AC generators
GB2183048B (en) * 1985-11-11 1989-12-20 British Gas Plc Method and apparatus for testing ac generators
WO1997020369A1 (en) * 1995-12-01 1997-06-05 Berg Technology, Inc. Method of making smooth contact terminals

Also Published As

Publication number Publication date
CA951793A (en) 1974-07-23
BR7204883D0 (pt) 1973-06-07
FR2147140A1 (https=) 1973-03-09
JPS5744945B1 (https=) 1982-09-24
JPS4822072A (https=) 1973-03-20
IT962856B (it) 1973-12-31
DE2235944A1 (de) 1973-02-01
ES404957A1 (es) 1975-07-01
FR2147140B1 (https=) 1978-12-29
US3743949A (en) 1973-07-03

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed