DE2139126B2 - Digital in logarithmischem mass anzeigender spannungsmesser - Google Patents

Digital in logarithmischem mass anzeigender spannungsmesser

Info

Publication number
DE2139126B2
DE2139126B2 DE19712139126 DE2139126A DE2139126B2 DE 2139126 B2 DE2139126 B2 DE 2139126B2 DE 19712139126 DE19712139126 DE 19712139126 DE 2139126 A DE2139126 A DE 2139126A DE 2139126 B2 DE2139126 B2 DE 2139126B2
Authority
DE
Germany
Prior art keywords
time
voltage
pulses
frequency
capacitor
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.)
Ceased
Application number
DE19712139126
Other languages
German (de)
English (en)
Other versions
DE2139126A1 (OSRAM
Inventor
Eberhard Dr.-Ing. 7412Eningen Schuon
Original Assignee
Wandel U. Goltermann, 7410 Reutlingen
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 Wandel U. Goltermann, 7410 Reutlingen filed Critical Wandel U. Goltermann, 7410 Reutlingen
Priority to DE19712139126 priority Critical patent/DE2139126B2/de
Priority to GB3435272A priority patent/GB1411974A/en
Priority to FR7227620A priority patent/FR2148131A1/fr
Priority to US00278640A priority patent/US3828255A/en
Publication of DE2139126B2 publication Critical patent/DE2139126B2/de
Publication of DE2139126A1 publication Critical patent/DE2139126A1/de
Ceased 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
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/08—Circuits for altering the measuring range

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Manipulation Of Pulses (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
DE19712139126 1971-08-05 1971-08-05 Digital in logarithmischem mass anzeigender spannungsmesser Ceased DE2139126B2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19712139126 DE2139126B2 (de) 1971-08-05 1971-08-05 Digital in logarithmischem mass anzeigender spannungsmesser
GB3435272A GB1411974A (en) 1971-08-05 1972-07-21 Analogue-to-digital converters
FR7227620A FR2148131A1 (OSRAM) 1971-08-05 1972-07-26
US00278640A US3828255A (en) 1971-08-05 1972-08-07 Electric meter with logarithmically indicating digital reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712139126 DE2139126B2 (de) 1971-08-05 1971-08-05 Digital in logarithmischem mass anzeigender spannungsmesser

Publications (2)

Publication Number Publication Date
DE2139126B2 true DE2139126B2 (de) 1972-10-12
DE2139126A1 DE2139126A1 (OSRAM) 1972-10-12

Family

ID=5815807

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712139126 Ceased DE2139126B2 (de) 1971-08-05 1971-08-05 Digital in logarithmischem mass anzeigender spannungsmesser

Country Status (4)

Country Link
US (1) US3828255A (OSRAM)
DE (1) DE2139126B2 (OSRAM)
FR (1) FR2148131A1 (OSRAM)
GB (1) GB1411974A (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628084A1 (de) * 1975-06-23 1977-01-13 Takeda Riken Ind Co Ltd Analog-digital-wandler
FR2445073A1 (fr) * 1978-12-20 1980-07-18 Gen Electric Convertisseur analogique-numerique logarithmique
DE3414098A1 (de) * 1983-04-15 1984-11-22 Canon K.K., Tokio/Tokyo Komprimierungs-analog/digital-wandler

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970155A (en) * 1974-01-14 1976-07-20 Jo-Line Tools, Inc. Electronic torque wrench
US3895517A (en) * 1974-01-14 1975-07-22 Jo Line Tools Electronic torque wrench
JPS51148341A (en) * 1975-06-16 1976-12-20 Nippon Soken Inc Logarithm function generator
US4000463A (en) * 1975-12-01 1976-12-28 Ballantine Laboratories, Inc. Direct-reading decibel meter
US4149120A (en) * 1977-04-06 1979-04-10 Endress & Hauser Gmbh & Co. Circuit arrangement for linearizing the output signal of a test sensor
US4160134A (en) * 1977-08-25 1979-07-03 International Telephone And Telegraph Corporation Digital signal level measurement
NL8402918A (nl) * 1984-09-25 1986-04-16 Philips Nv Niveau-indikator.
US4643030A (en) * 1985-01-22 1987-02-17 Snap-On Tools Corporation Torque measuring apparatus
US4665358A (en) * 1985-05-23 1987-05-12 General Electric Company Solid state electronic pulse scaler using ratio of two integers
US5703169A (en) * 1996-01-24 1997-12-30 Adhesives Research, Inc. Non-corrosive, low volatiles-containing pressure sensitive adhesive
US6195029B1 (en) * 1998-09-25 2001-02-27 Harman Music Group Analog to digital conversion system that enables high-level signal excursions without clipping
DE19903557C1 (de) * 1999-01-29 2000-08-31 Texas Instruments Deutschland Verfahren zum Messen der Schwellenspannung eines Komparators und Anwendung dieses Verfahrens
GB2479156B (en) 2010-03-30 2012-11-21 Univ Newcastle Apparatus and method for voltage sensing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283254A (en) * 1963-12-06 1966-11-01 Bell Telephone Labor Inc Control system employing counter to generate signals for changing output, linearly or non-linearly, of frequency synthesizer
DE1250550B (OSRAM) * 1964-12-21
US3716849A (en) * 1970-06-08 1973-02-13 Solarton Electronic Integrating measurements with noise reduction
US3644837A (en) * 1971-01-29 1972-02-22 Us Navy Synchronous facsimile generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628084A1 (de) * 1975-06-23 1977-01-13 Takeda Riken Ind Co Ltd Analog-digital-wandler
FR2445073A1 (fr) * 1978-12-20 1980-07-18 Gen Electric Convertisseur analogique-numerique logarithmique
DE3414098A1 (de) * 1983-04-15 1984-11-22 Canon K.K., Tokio/Tokyo Komprimierungs-analog/digital-wandler

Also Published As

Publication number Publication date
FR2148131A1 (OSRAM) 1973-03-16
US3828255A (en) 1974-08-06
GB1411974A (en) 1975-10-29
DE2139126A1 (OSRAM) 1972-10-12

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Legal Events

Date Code Title Description
8235 Patent refused