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 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)
DE (1) DE2504424A1 (enrdf_load_stackoverflow)
FR (1) FR2260091B1 (enrdf_load_stackoverflow)
GB (1) GB1488183A (enrdf_load_stackoverflow)
IT (1) IT1027458B (enrdf_load_stackoverflow)

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
FR2260091B1 (enrdf_load_stackoverflow) 1976-06-25
IT1027458B (it) 1978-11-20
BE824529A (fr) 1975-07-22
FR2260091A1 (enrdf_load_stackoverflow) 1975-08-29
DE2504424A1 (de) 1976-01-02

Similar Documents

Publication Publication Date Title
US4850016A (en) Microphone
DK0445707T3 (da) Cylinderformet hus med lukkeanordning
FR2455839A1 (fr) Procede et dispositif de protection d'un transducteur electromecanique
ATE253287T1 (de) Vorrichtung mit einem gehäuse das einen tonwandler enthält und mit einer durchführung
GB1488183A (en) Device for sensing noise in a fluid flow stream
AU5566299A (en) Integrated barrier fluid sealing apparatus with visual volume indicator
FR2440815A1 (fr) Objet metallique creux, amorti contre le bruit
GB1489953A (en) Leak detector
GB1273379A (en) Method of apparatus for testing the fluid tightness of an article etc.
ATE149889T1 (de) Vakuumstrangpresse für metall
KR910006703A (ko) 2개의 종단점간의 파이프라인 접속부의 존재를 점검하기 위한 방법
JPS6454226A (en) Semiconductor pressure detector
KR920001182A (ko) 레벨 검출 방법 및 그 장치
US2756281A (en) Explosion proof acoustic device
JPS5740185A (en) Valve operation monitor
JP6392795B2 (ja) 水中観測装置及びオイル注入装置
JP3039782U (ja) 自主警備システム用センサ
FR2407589A1 (fr) Garniture d'etancheite de joint, notamment pour carter metallique d'enveloppe etanche aux gaz
Burdukov et al. Shock wave in a gas-liquid medium
JP3296377B2 (ja) タンク液面測定装置
US3115616A (en) Mechanical vibration pick-up for use in high noise fields
Seo et al. A study on the leakage error in the spectrum of acoustic intensity
FR2812258B1 (fr) Servofrein pneumatique et procede de montage
GB1337069A (en) Method and apparatus for inserting and removing objects through a wall opening without contaminations
FR2354133A1 (fr) Dispositifs pour introduire des objets dans une enceinte de confinement

Legal Events

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