FR1579312A - - Google Patents

Info

Publication number
FR1579312A
FR1579312A FR1579312DA FR1579312A FR 1579312 A FR1579312 A FR 1579312A FR 1579312D A FR1579312D A FR 1579312DA FR 1579312 A FR1579312 A FR 1579312A
Authority
FR
France
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
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 filed Critical
Application granted granted Critical
Publication of FR1579312A publication Critical patent/FR1579312A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y10S367/901—Noise or unwanted signal reduction in nonseismic receiving system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
FR1579312D 1967-10-23 1968-09-03 Expired FR1579312A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67715667A 1967-10-23 1967-10-23

Publications (1)

Publication Number Publication Date
FR1579312A true FR1579312A (fr) 1969-08-22

Family

ID=24717567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1579312D Expired FR1579312A (fr) 1967-10-23 1968-09-03

Country Status (4)

Country Link
US (1) US3500301A (fr)
DE (1) DE1804600A1 (fr)
FR (1) FR1579312A (fr)
GB (1) GB1181047A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE840456A (fr) * 1975-04-22 1976-10-07 Dispositif de mesure precise des dimensions d'un objet par ultra-sons
US4200921A (en) * 1976-04-22 1980-04-29 Massachusetts Institute Of Technology Apparatus and method whereby wave energy is correlated with positional relationships in a system
US4175441A (en) * 1978-05-08 1979-11-27 Tencor Instruments Gauge for measuring distance to planar surfaces and thicknesses of planar members
US4285053A (en) * 1979-05-21 1981-08-18 Tencor Instruments Acoustic method and apparatus for measuring micron and submicron distances
US4280354A (en) * 1980-02-12 1981-07-28 Tencor Instruments Acoustic method and apparatus for measuring surfaces of wafers and similar articles
US4682159A (en) * 1984-06-20 1987-07-21 Personics Corporation Apparatus and method for controlling a cursor on a computer display
US4625828A (en) * 1985-09-09 1986-12-02 The Boeing Company Acoustic reflector for ground plane microphone
GB8717492D0 (en) * 1987-07-23 1987-08-26 Scan Coin Ab Coin discriminator
US4945768A (en) * 1988-05-20 1990-08-07 Parker Electronics, Inc. Pressure sensor
US5126946A (en) * 1990-11-13 1992-06-30 The North American Manufacturing Company Ultrasonic edge detector
US5563848A (en) * 1994-09-08 1996-10-08 Monash University Object detector for detecting buried objects
US5922959A (en) * 1996-10-15 1999-07-13 Currency Systems International Methods of measuring currency limpness
DE10037664B4 (de) 2000-07-31 2012-02-16 Giesecke & Devrient Gmbh Verfahren zur Verifikation von Dickenmodulationen in oder auf Blattgut

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640190A (en) * 1945-09-04 1953-05-26 Rines Robert Harvey System for measuring the thickness of opaque objects
US3008332A (en) * 1958-02-01 1961-11-14 Rochar Electronique Supersonic pressure gauge
US3021481A (en) * 1959-01-07 1962-02-13 Henry P Kalmus Phasemeter for measuring very small phase differences
US3237150A (en) * 1961-02-24 1966-02-22 Curtiss Wright Corp Ultrasonic position indicator system
US3140612A (en) * 1961-09-08 1964-07-14 Electro Sonic Systems Inc Ultrasonic sensor device
US3184969A (en) * 1963-06-10 1965-05-25 Gen Signal Corp Liquid level indication system
US3290490A (en) * 1966-02-21 1966-12-06 Gen Signal Corp Method and apparatus for obtaining traffic flow velocity data

Also Published As

Publication number Publication date
DE1804600A1 (de) 1969-05-22
US3500301A (en) 1970-03-10
GB1181047A (en) 1970-02-11

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Legal Events

Date Code Title Description
ST Notification of lapse