WO1979000747A1 - Transducers - Google Patents

Transducers Download PDF

Info

Publication number
WO1979000747A1
WO1979000747A1 PCT/JP1979/000058 JP7900058W WO7900747A1 WO 1979000747 A1 WO1979000747 A1 WO 1979000747A1 JP 7900058 W JP7900058 W JP 7900058W WO 7900747 A1 WO7900747 A1 WO 7900747A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
transducer
voltages
input voltage
kinds
Prior art date
Application number
PCT/JP1979/000058
Other languages
French (fr)
Japanese (ja)
Inventor
F Andow
N Fujisawa
Original Assignee
Tokyo Shibaura Electric Co
F Andow
N Fujisawa
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, F Andow, N Fujisawa filed Critical Tokyo Shibaura Electric Co
Publication of WO1979000747A1 publication Critical patent/WO1979000747A1/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Rectifiers (AREA)

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.
PCT/JP1979/000058 1978-03-13 1979-03-09 Transducers WO1979000747A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2765878A JPS54121177A (en) 1978-03-13 1978-03-13 Transducer
JP78/27658 1978-03-13

Publications (1)

Publication Number Publication Date
WO1979000747A1 true WO1979000747A1 (en) 1979-10-04

Family

ID=12227019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1979/000058 WO1979000747A1 (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
CN102128993A (en) * 2010-12-03 2011-07-20 海信（山东）空调有限公司 Working condition verifying circuit of current-limiting resistor and verifying method thereof
CN102128994A (en) * 2010-12-03 2011-07-20 海信（山东）空调有限公司 Circuit and method for verifying reliability of current-limiting resistor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650395B1 (en) * 1989-07-31 1991-09-27 Merlin Gerin DEVICE FOR MEASURING THE EFFECTIVE VALUE OF A SIGNAL, PARTICULARLY FOR MEASURING CURRENT IN A STATIC TRIGGER
GB2369189C (en) 2000-02-18 2008-06-24 Sensei Ltd Method of measuring the battery level in a mobile telephone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS384384B1 (en) * 1958-06-16 1963-03-24
JPS439661Y1 (en) * 1964-09-18 1968-04-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS384384B1 (en) * 1958-06-16 1963-03-24
JPS439661Y1 (en) * 1964-09-18 1968-04-26

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM-Technical Disclosure Bulletin, Vol. 12, No. 7 (1969-12) J.E. Frushour �PEAK VOLTAGE DETECTION� P990 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128993A (en) * 2010-12-03 2011-07-20 海信（山东）空调有限公司 Working condition verifying circuit of current-limiting resistor and verifying method thereof
CN102128994A (en) * 2010-12-03 2011-07-20 海信（山东）空调有限公司 Circuit and method for verifying reliability of current-limiting resistor

Also Published As

Publication number Publication date
AU527263B2 (en) 1983-02-24
AU4506579A (en) 1981-01-15
GB2036984B (en) 1982-12-01
SE445282B (en) 1986-06-09
GB2036984A (en) 1980-07-02
SE7909305L (en) 1979-11-12
JPS54121177A (en) 1979-09-20

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