FR2531212B1 - PROXIMITY ACOUSTIC SENSOR - Google Patents

PROXIMITY ACOUSTIC SENSOR

Info

Publication number
FR2531212B1
FR2531212B1 FR8213817A FR8213817A FR2531212B1 FR 2531212 B1 FR2531212 B1 FR 2531212B1 FR 8213817 A FR8213817 A FR 8213817A FR 8213817 A FR8213817 A FR 8213817A FR 2531212 B1 FR2531212 B1 FR 2531212B1
Authority
FR
France
Prior art keywords
acoustic sensor
proximity
proximity acoustic
sensor
acoustic
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
FR8213817A
Other languages
French (fr)
Other versions
FR2531212A1 (en
Inventor
Edmond Benarrous
Jean Sabot
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.)
METRAFLU
Original Assignee
METRAFLU
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 METRAFLU filed Critical METRAFLU
Priority to FR8213817A priority Critical patent/FR2531212B1/en
Publication of FR2531212A1 publication Critical patent/FR2531212A1/en
Application granted granted Critical
Publication of FR2531212B1 publication Critical patent/FR2531212B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
FR8213817A 1982-07-30 1982-07-30 PROXIMITY ACOUSTIC SENSOR Expired FR2531212B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8213817A FR2531212B1 (en) 1982-07-30 1982-07-30 PROXIMITY ACOUSTIC SENSOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8213817A FR2531212B1 (en) 1982-07-30 1982-07-30 PROXIMITY ACOUSTIC SENSOR

Publications (2)

Publication Number Publication Date
FR2531212A1 FR2531212A1 (en) 1984-02-03
FR2531212B1 true FR2531212B1 (en) 1986-04-11

Family

ID=9276720

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8213817A Expired FR2531212B1 (en) 1982-07-30 1982-07-30 PROXIMITY ACOUSTIC SENSOR

Country Status (1)

Country Link
FR (1) FR2531212B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3464988B2 (en) 2001-09-21 2003-11-10 株式会社東芝 Disk device, yoke incorporated in disk device, and method of manufacturing yoke

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453872A (en) * 1966-03-24 1969-07-08 North American Rockwell Eddy sonic inspection method
CH548698A (en) * 1971-03-16 1974-04-30 Mueller Harro CIRCUIT ARRANGEMENT FOR EMISSION OF AN APPROXIMATION SIGNAL WHEN APPROACHING A HUMAN BODY PART.
US4041446A (en) * 1976-05-20 1977-08-09 The United States Of America As Represented By The Secretary Of The Navy Capacitive-type displacement and pressure sensitive transducer

Also Published As

Publication number Publication date
FR2531212A1 (en) 1984-02-03

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Legal Events

Date Code Title Description
ST Notification of lapse