DE2925522C2 - Verfahren und Schaltungsanordnung zur digitalen Messung analoger Meßgrößen - Google Patents

Verfahren und Schaltungsanordnung zur digitalen Messung analoger Meßgrößen

Info

Publication number
DE2925522C2
DE2925522C2 DE2925522A DE2925522A DE2925522C2 DE 2925522 C2 DE2925522 C2 DE 2925522C2 DE 2925522 A DE2925522 A DE 2925522A DE 2925522 A DE2925522 A DE 2925522A DE 2925522 C2 DE2925522 C2 DE 2925522C2
Authority
DE
Germany
Prior art keywords
value
measured
circuit arrangement
digital measurement
displayed
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
DE2925522A
Other languages
German (de)
English (en)
Other versions
DE2925522A1 (de
Inventor
Ulrich Dipl.-Phys. Dr. 5600 Wuppertal Opara
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.)
Krautkraemer GmbH and Co
Original Assignee
Krautkraemer GmbH and Co
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 Krautkraemer GmbH and Co filed Critical Krautkraemer GmbH and Co
Priority to DE2925522A priority Critical patent/DE2925522C2/de
Priority to US06/159,056 priority patent/US4307611A/en
Priority to GB8020629A priority patent/GB2054302B/en
Priority to FR8014131A priority patent/FR2459979A1/fr
Priority to JP8638780A priority patent/JPS5631603A/ja
Publication of DE2925522A1 publication Critical patent/DE2925522A1/de
Application granted granted Critical
Publication of DE2925522C2 publication Critical patent/DE2925522C2/de
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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/252—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 conversion of voltage or current into frequency and measuring of this frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/248—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains by varying pulse repetition frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • 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
    • H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/902—Speed of sound compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
DE2925522A 1979-06-25 1979-06-25 Verfahren und Schaltungsanordnung zur digitalen Messung analoger Meßgrößen Expired DE2925522C2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2925522A DE2925522C2 (de) 1979-06-25 1979-06-25 Verfahren und Schaltungsanordnung zur digitalen Messung analoger Meßgrößen
US06/159,056 US4307611A (en) 1979-06-25 1980-06-13 Pulse-echo ultrasonic apparatus
GB8020629A GB2054302B (en) 1979-06-25 1980-06-24 Digital measurement of analogue quantities
FR8014131A FR2459979A1 (fr) 1979-06-25 1980-06-25 Procede et circuit pour la mesure numerique de grandeurs de mesure analogiques
JP8638780A JPS5631603A (en) 1979-06-25 1980-06-25 Method and circuit for digitally measuring analogue quantity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2925522A DE2925522C2 (de) 1979-06-25 1979-06-25 Verfahren und Schaltungsanordnung zur digitalen Messung analoger Meßgrößen

Publications (2)

Publication Number Publication Date
DE2925522A1 DE2925522A1 (de) 1981-01-08
DE2925522C2 true DE2925522C2 (de) 1982-09-09

Family

ID=6074059

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2925522A Expired DE2925522C2 (de) 1979-06-25 1979-06-25 Verfahren und Schaltungsanordnung zur digitalen Messung analoger Meßgrößen

Country Status (5)

Country Link
US (1) US4307611A (OSRAM)
JP (1) JPS5631603A (OSRAM)
DE (1) DE2925522C2 (OSRAM)
FR (1) FR2459979A1 (OSRAM)
GB (1) GB2054302B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741338A1 (de) * 1987-12-07 1989-06-15 Rump Elektronik Tech Apparat und verfahren zur elektronischen distanzvermessung mit hilfe der laufzeitbestimmung von wellenfoermigen impulsen

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009574A1 (de) * 1980-03-13 1981-09-17 Krautkrämer, GmbH, 5000 Köln Verfahren und vorrichtung zur bestimmung der schallgeschwindigkeit in einem material vorgegebener dicke
HU179871B (en) * 1980-06-05 1982-12-28 Mueszeripari Kutato Intezet Apparatus for searching extreme value of and noise compensation at the procession of sampled signals
US4471657A (en) * 1981-05-12 1984-09-18 Stresstel Corporation Digital ultrasonic stress measuring method and apparatus
US4531193A (en) 1981-07-30 1985-07-23 Fuji Electric Company, Ltd. Measurement apparatus
US4444146A (en) * 1982-01-13 1984-04-24 Honeywell Inc. Ultrasonic subsurface cleaning
US4715008A (en) * 1982-12-17 1987-12-22 Ndt Instruments, Inc. Hand-held digital thickness gage
US4545248A (en) * 1983-06-16 1985-10-08 Kabushiki Kaisha Tokyo Keiki Ultrasonic thickness gauge
GB8330583D0 (en) * 1983-11-16 1984-01-18 Schlumberger Electronics Uk Pressure sensors
US4870687A (en) * 1984-09-10 1989-09-26 Deleon Andrew M Oral readout rangefinder
US4747310A (en) * 1986-08-12 1988-05-31 Grumman Aerospace Corporation Probe for composite analyzer tester
US4745809A (en) * 1986-08-12 1988-05-24 Grumman Aerospace Corporation Composite analyzer tester
US4711120A (en) * 1986-10-06 1987-12-08 Association Of American Railroads Method of wear monitoring using ultrasonic phase comparison
US4814703A (en) * 1987-08-04 1989-03-21 The Boeing Company Method and apparatus for gap measurement between a graphite/epoxy structure and a metallic model
JPH0758179B2 (ja) * 1989-11-28 1995-06-21 株式会社帝通電子研究所 クラッド厚さ測定装置
US5459698A (en) * 1993-03-08 1995-10-17 The Rexroth Corporation Noninvasive ultrasonic proximity detector for a fluid actuated cylinder
CA2169307C (en) * 1994-12-12 2003-10-14 David A. Hutchins Non-contact characterization and inspection of materials using wideband air coupled ultrasound
RU2131128C1 (ru) * 1996-07-01 1999-05-27 Ульяновский государственный технический университет Переносной цифровой измеритель больших постоянных токов
RU2156981C1 (ru) * 1999-11-23 2000-09-27 Ульяновский государственный технический университет Переносной измеритель больших постоянных токов
US10018113B2 (en) * 2015-11-11 2018-07-10 General Electric Company Ultrasonic cleaning system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985022A (en) * 1975-06-09 1976-10-12 Krautkramer-Branson, Incorporated Ultrasonic thickness measuring method and apparatus
US3994154A (en) * 1975-09-30 1976-11-30 Krautkramer-Branson, Incorporated Ultrasonic pulse-echo thickness and velocity measuring apparatus
US4114455A (en) * 1977-10-07 1978-09-19 Krautkramer-Branson, Incorporated Ultrasonic velocity measuring method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741338A1 (de) * 1987-12-07 1989-06-15 Rump Elektronik Tech Apparat und verfahren zur elektronischen distanzvermessung mit hilfe der laufzeitbestimmung von wellenfoermigen impulsen

Also Published As

Publication number Publication date
FR2459979A1 (fr) 1981-01-16
GB2054302B (en) 1984-02-01
GB2054302A (en) 1981-02-11
JPS5631603A (en) 1981-03-31
DE2925522A1 (de) 1981-01-08
US4307611A (en) 1981-12-29
FR2459979B1 (OSRAM) 1984-11-16

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Legal Events

Date Code Title Description
OAM Search report available
OAP Request for examination filed
OC Search report available
OD Request for examination
D2 Grant after examination
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee