GB1488183A - Device for sensing noise in a fluid flow stream - Google Patents

Device for sensing noise in a fluid flow stream

Info

Publication number
GB1488183A
GB1488183A GB468375A GB468375A GB1488183A GB 1488183 A GB1488183 A GB 1488183A GB 468375 A GB468375 A GB 468375A GB 468375 A GB468375 A GB 468375A GB 1488183 A GB1488183 A GB 1488183A
Authority
GB
United Kingdom
Prior art keywords
microphone
wall
duct
attenuator
positioner
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
GB468375A
Other languages
English (en)
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.)
Groupement Activities Atomiques Advancees
Original Assignee
Groupement Activities Atomiques Advancees
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 Groupement Activities Atomiques Advancees filed Critical Groupement Activities Atomiques Advancees
Publication of GB1488183A publication Critical patent/GB1488183A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB468375A 1974-02-05 1975-02-04 Device for sensing noise in a fluid flow stream Expired GB1488183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403798A FR2260091B1 (cg-RX-API-DMAC7.html) 1974-02-05 1974-02-05

Publications (1)

Publication Number Publication Date
GB1488183A true GB1488183A (en) 1977-10-05

Family

ID=9134493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB468375A Expired GB1488183A (en) 1974-02-05 1975-02-04 Device for sensing noise in a fluid flow stream

Country Status (5)

Country Link
BE (1) BE824529A (cg-RX-API-DMAC7.html)
DE (1) DE2504424A1 (cg-RX-API-DMAC7.html)
FR (1) FR2260091B1 (cg-RX-API-DMAC7.html)
GB (1) GB1488183A (cg-RX-API-DMAC7.html)
IT (1) IT1027458B (cg-RX-API-DMAC7.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421526A1 (fr) * 1978-03-31 1979-10-26 Sfena Perfectionnement au capteur-acoustique utilise dans les systemes electro-acoustiques de detection de projectile passant au voisinage d'une cible aerienne

Also Published As

Publication number Publication date
BE824529A (fr) 1975-07-22
FR2260091B1 (cg-RX-API-DMAC7.html) 1976-06-25
DE2504424A1 (de) 1976-01-02
IT1027458B (it) 1978-11-20
FR2260091A1 (cg-RX-API-DMAC7.html) 1975-08-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee