GB2036984A - Transducers - Google Patents

Transducers

Info

Publication number
GB2036984A
GB2036984A GB7938816A GB7938816A GB2036984A GB 2036984 A GB2036984 A GB 2036984A GB 7938816 A GB7938816 A GB 7938816A GB 7938816 A GB7938816 A GB 7938816A GB 2036984 A GB2036984 A GB 2036984A
Authority
GB
United Kingdom
Prior art keywords
voltage
transducer
voltages
input voltage
kinds
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.)
Granted
Application number
GB7938816A
Other versions
GB2036984B (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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB2036984A publication Critical patent/GB2036984A/en
Application granted granted Critical
Publication of GB2036984B publication Critical patent/GB2036984B/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
    • G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses
    • 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
    • G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc

Abstract

A transducer for convening an AC voltage to a DC voltage to obtain a DC output voltage which is in response to an AC input voltage. An AC input voltage (e11) representing conditions of an AC power system is rectified through a full-wave or half-wave rectifier (12) of the transducer to thereby provide two kinds of DC voltages (e12, e14), each of which is in proportion to the AC input voltage (e11) and has a ripple component. These two kinds of DC voltages (e12, e14) are then compared with each other at a comparator and there is provided a DC output which corresponds to the smaller one of the DC voltages. This transducer is available for signal sources for data loggers, digital computers, telemeters and the like.
GB7938816A 1978-03-13 1979-03-09 Transducers Expired GB2036984B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2765878A JPS54121177A (en) 1978-03-13 1978-03-13 Transducer

Publications (2)

Publication Number Publication Date
GB2036984A true GB2036984A (en) 1980-07-02
GB2036984B GB2036984B (en) 1982-12-01

Family

ID=12227019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7938816A Expired GB2036984B (en) 1978-03-13 1979-03-09 Transducers

Country Status (5)

Country Link
JP (1) JPS54121177A (en)
AU (1) AU527263B2 (en)
GB (1) GB2036984B (en)
SE (1) SE445282B (en)
WO (1) WO1979000747A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650395A1 (en) * 1989-07-31 1991-02-01 Merlin Gerin DEVICE FOR MEASURING THE EFFECTIVE VALUE OF A SIGNAL, IN PARTICULAR FOR MEASURING CURRENT IN A STATIC TRIGGER
GB2369189A (en) * 2000-02-18 2002-05-22 Sensei Ltd Method of measuring the voltage level of a battery

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128993B (en) * 2010-12-03 2013-04-03 海信（山东）空调有限公司 Working condition verifying circuit of current-limiting resistor and verifying method thereof
CN102128994B (en) * 2010-12-03 2013-04-03 海信（山东）空调有限公司 Circuit and method for verifying reliability of current-limiting resistor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924769A (en) * 1958-06-16 1960-02-09 Gen Electric Peak reading circuit
JPS439661Y1 (en) * 1964-09-18 1968-04-26

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650395A1 (en) * 1989-07-31 1991-02-01 Merlin Gerin DEVICE FOR MEASURING THE EFFECTIVE VALUE OF A SIGNAL, IN PARTICULAR FOR MEASURING CURRENT IN A STATIC TRIGGER
EP0412024A1 (en) * 1989-07-31 1991-02-06 Merlin Gerin Device for measuring the RMS-value of a signal, especially for measuring the current in a static tripping device
US5027060A (en) * 1989-07-31 1991-06-25 Merlin Gerin Measuring device of the rms value of a signal, notably for current measurement in a solid-state trip device
GB2369189A (en) * 2000-02-18 2002-05-22 Sensei Ltd Method of measuring the voltage level of a battery
GB2369189B (en) * 2000-02-18 2004-05-26 Sensei Ltd Method of measuring the battery level in a mobile telephone
US7102329B2 (en) 2000-02-18 2006-09-05 Donavan Developments Limited Method of measuring the battery level in a mobile telephone
US7696724B2 (en) 2000-02-18 2010-04-13 Donovan Developments Limited Method of measuring the battery level in a mobile telephone

Also Published As

Publication number Publication date
AU4506579A (en) 1981-01-15
SE445282B (en) 1986-06-09
AU527263B2 (en) 1983-02-24
WO1979000747A1 (en) 1979-10-04
SE7909305L (en) 1979-11-12
GB2036984B (en) 1982-12-01
JPS54121177A (en) 1979-09-20

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970309