FR703452A - Sound detection device - Google Patents

Sound detection device

Info

Publication number
FR703452A
FR703452A FR703452DA FR703452A FR 703452 A FR703452 A FR 703452A FR 703452D A FR703452D A FR 703452DA FR 703452 A FR703452 A FR 703452A
Authority
FR
France
Prior art keywords
detection device
sound detection
sound
detection
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
Other languages
French (fr)
Inventor
Wilhelm Schaafhausen
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 FR703452A publication Critical patent/FR703452A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/04—Acoustic filters ; Acoustic resonators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
FR703452D 1929-08-20 1930-10-07 Sound detection device Expired FR703452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1834875X 1929-08-20

Publications (1)

Publication Number Publication Date
FR703452A true FR703452A (en) 1931-04-30

Family

ID=7745312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR703452D Expired FR703452A (en) 1929-08-20 1930-10-07 Sound detection device

Country Status (2)

Country Link
US (1) US1834875A (en)
FR (1) FR703452A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632521A (en) * 1953-03-24 Frequency selector
US2666326A (en) * 1947-12-22 1954-01-19 Poole Volumetric measuring apparatus
US2664274A (en) * 1951-12-22 1953-12-29 Lummus Co Method and apparatus employing sonic waves in heat exchange
US3229509A (en) * 1963-05-29 1966-01-18 Ronald A Darby Flow noise detector
GB1030957A (en) * 1964-04-16
US4507660A (en) * 1982-07-16 1985-03-26 Advanced Electromagnetics, Inc. Anechoic chamber

Also Published As

Publication number Publication date
US1834875A (en) 1931-12-01

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