FR2270568A1 - - Google Patents

Info

Publication number
FR2270568A1
FR2270568A1 FR7514135A FR7514135A FR2270568A1 FR 2270568 A1 FR2270568 A1 FR 2270568A1 FR 7514135 A FR7514135 A FR 7514135A FR 7514135 A FR7514135 A FR 7514135A FR 2270568 A1 FR2270568 A1 FR 2270568A1
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.)
Granted
Application number
FR7514135A
Other languages
French (fr)
Other versions
FR2270568B1 (Direct
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2270568A1 publication Critical patent/FR2270568A1/fr
Application granted granted Critical
Publication of FR2270568B1 publication Critical patent/FR2270568B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2437—Piezoelectric probes
    • G01N29/245—Ceramic probes, e.g. lead zirconate titanate [PZT] probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H5/00—Measuring propagation velocity of ultrasonic, sonic or infrasonic waves, e.g. of pressure waves
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multimedia (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FR7514135A 1974-05-06 1975-05-06 Expired FR2270568B1 (Direct)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7406033A NL7406033A (nl) 1974-05-06 1974-05-06 Looptijdmeter.

Publications (2)

Publication Number Publication Date
FR2270568A1 true FR2270568A1 (Direct) 1975-12-05
FR2270568B1 FR2270568B1 (Direct) 1979-03-16

Family

ID=19821303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514135A Expired FR2270568B1 (Direct) 1974-05-06 1975-05-06

Country Status (9)

Country Link
US (1) US4038629A (Direct)
JP (1) JPS574853B2 (Direct)
AU (1) AU499051B2 (Direct)
CA (1) CA1032263A (Direct)
DE (1) DE2517902C2 (Direct)
FR (1) FR2270568B1 (Direct)
GB (1) GB1489013A (Direct)
IT (1) IT1035607B (Direct)
NL (1) NL7406033A (Direct)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182154A (en) * 1976-08-06 1980-01-08 Mannesmann Aktiengesellschaft Initializing ultrasonic test equipment with a particular reference element
US4342518A (en) * 1980-12-01 1982-08-03 The United States Of America As Represented By The Secretary Of The Navy Subseafloor environmental simulator
JPS57166763A (en) * 1981-04-06 1982-10-14 Hitachi Ltd Automatic answering telephone set
US4926395A (en) * 1987-10-15 1990-05-15 The Regents Of The University Of California Method and system for measuring sound velocity
DE19648112C1 (de) * 1996-11-21 1998-03-05 Contitech Luftfedersyst Gmbh Einrichtung zur berührungslosen Abstandsmessung
JP5275486B1 (ja) * 2012-02-16 2013-08-28 日本郵船株式会社 船速計および船速計測方法
CA3008342A1 (en) * 2017-03-02 2018-09-02 Chris Bueley Sound velocity sensor for underwater use and method for determining underwater sound velocity

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778273A (en) * 1953-03-03 1957-01-22 Robert E Fellmeth Rearview mirror
US3184959A (en) * 1961-04-03 1965-05-25 Lockheed Aircraft Corp Velocity of sound meter
US3273111A (en) * 1964-08-03 1966-09-13 Bosch Arma Corp Apparatus for measuring the velocity of acoustical waves

Also Published As

Publication number Publication date
US4038629A (en) 1977-07-26
JPS50151573A (Direct) 1975-12-05
GB1489013A (en) 1977-10-19
AU8078575A (en) 1976-11-04
DE2517902C2 (de) 1982-10-07
JPS574853B2 (Direct) 1982-01-27
FR2270568B1 (Direct) 1979-03-16
IT1035607B (it) 1979-10-20
DE2517902A1 (de) 1975-11-27
CA1032263A (en) 1978-05-30
AU499051B2 (en) 1979-04-05
NL7406033A (nl) 1975-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse