DE2822467C2 - - Google Patents

Info

Publication number
DE2822467C2
DE2822467C2 DE19782822467 DE2822467A DE2822467C2 DE 2822467 C2 DE2822467 C2 DE 2822467C2 DE 19782822467 DE19782822467 DE 19782822467 DE 2822467 A DE2822467 A DE 2822467A DE 2822467 C2 DE2822467 C2 DE 2822467C2
Authority
DE
Germany
Prior art keywords
resistance
measuring device
signal
switch
counter
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 - Fee Related
Application number
DE19782822467
Other languages
German (de)
English (en)
Other versions
DE2822467A1 (de
Inventor
Norman H. Seattle Wash. Us Strong
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.)
JOHN FLUKE Manufacturing Co Inc MOUNTLAKE TERRACE WASH US
Original Assignee
JOHN FLUKE Manufacturing Co Inc MOUNTLAKE TERRACE WASH US
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 JOHN FLUKE Manufacturing Co Inc MOUNTLAKE TERRACE WASH US filed Critical JOHN FLUKE Manufacturing Co Inc MOUNTLAKE TERRACE WASH US
Publication of DE2822467A1 publication Critical patent/DE2822467A1/de
Application granted granted Critical
Publication of DE2822467C2 publication Critical patent/DE2822467C2/de
Granted 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/255—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency
    • 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
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/52—Input signal integrated with linear return to datum

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE19782822467 1977-05-23 1978-05-23 Leitwertmesser Granted DE2822467A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79969377A 1977-05-23 1977-05-23

Publications (2)

Publication Number Publication Date
DE2822467A1 DE2822467A1 (de) 1978-12-07
DE2822467C2 true DE2822467C2 (US20080293856A1-20081127-C00150.png) 1990-08-16

Family

ID=25176528

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782822467 Granted DE2822467A1 (de) 1977-05-23 1978-05-23 Leitwertmesser

Country Status (4)

Country Link
JP (1) JPS53144783A (US20080293856A1-20081127-C00150.png)
DE (1) DE2822467A1 (US20080293856A1-20081127-C00150.png)
GB (1) GB1589957A (US20080293856A1-20081127-C00150.png)
NL (1) NL7805426A (US20080293856A1-20081127-C00150.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027189A1 (en) * 1994-04-05 1995-10-12 Philips Electronics N.V. Resistance measuring circuit, and thermal appliance, electrical thermometer and cold-generating appliance including such a measuring circuit
DE10024716A1 (de) * 2000-05-19 2002-01-17 Asm Automation Sensorik Messte Meßumformer für potentiometrische Positionssensoren und Verfahren zur Parametrisierung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0317798Y2 (US20080293856A1-20081127-C00150.png) * 1985-04-09 1991-04-15
DE3828368A1 (de) * 1988-08-20 1990-02-22 Klaus Kittmann Leitwert-messgeraet und seine verwendung
DE4234789A1 (de) * 1992-10-15 1994-04-21 Metrawatt Gmbh Digitales Multimeter
JP5613408B2 (ja) 2009-10-13 2014-10-22 矢崎総業株式会社 絶縁計測装置
JP5648601B2 (ja) * 2011-08-08 2015-01-07 株式会社デンソー コンデンサの放電回路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953732C (de) * 1954-04-18 1956-12-06 Hartmann & Braun Ag Verfahren zur Messung bzw. UEberwachung geringer Leitfaehigkeiten
JPS5648835B2 (US20080293856A1-20081127-C00150.png) * 1972-11-15 1981-11-18
US3876933A (en) * 1973-12-28 1975-04-08 Itt Resistance measuring instrument with linearized digital readout

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027189A1 (en) * 1994-04-05 1995-10-12 Philips Electronics N.V. Resistance measuring circuit, and thermal appliance, electrical thermometer and cold-generating appliance including such a measuring circuit
DE10024716A1 (de) * 2000-05-19 2002-01-17 Asm Automation Sensorik Messte Meßumformer für potentiometrische Positionssensoren und Verfahren zur Parametrisierung
DE10024716C2 (de) * 2000-05-19 2002-08-14 Asm Automation Sensorik Messte Meßumformer für potentiometrische Positionssensoren und Verfahren zur Parametrisierung

Also Published As

Publication number Publication date
JPS53144783A (en) 1978-12-16
NL7805426A (nl) 1978-11-27
DE2822467A1 (de) 1978-12-07
GB1589957A (en) 1981-05-20

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee