GB1498220A - Sound level comparator - Google Patents

Sound level comparator

Info

Publication number
GB1498220A
GB1498220A GB2431975A GB2431975A GB1498220A GB 1498220 A GB1498220 A GB 1498220A GB 2431975 A GB2431975 A GB 2431975A GB 2431975 A GB2431975 A GB 2431975A GB 1498220 A GB1498220 A GB 1498220A
Authority
GB
United Kingdom
Prior art keywords
microphone
housing
comparator
sound level
housed
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
GB2431975A
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.)
Telediffusion de France ets Public de Diffusion
Original Assignee
Telediffusion de France ets Public de Diffusion
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 Telediffusion de France ets Public de Diffusion filed Critical Telediffusion de France ets Public de Diffusion
Publication of GB1498220A publication Critical patent/GB1498220A/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
    • 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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB2431975A 1974-06-05 1975-06-05 Sound level comparator Expired GB1498220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7419390A FR2274032A1 (fr) 1974-06-05 1974-06-05 Perfectionnements aux comparaphones

Publications (1)

Publication Number Publication Date
GB1498220A true GB1498220A (en) 1978-01-18

Family

ID=9139645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2431975A Expired GB1498220A (en) 1974-06-05 1975-06-05 Sound level comparator

Country Status (7)

Country Link
BE (1) BE829867A (it)
CH (1) CH592869A5 (it)
DE (1) DE2524467C3 (it)
ES (1) ES438272A1 (it)
FR (1) FR2274032A1 (it)
GB (1) GB1498220A (it)
IT (1) IT1038692B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906443A1 (de) * 1978-02-24 1979-09-27 Telediffusion Fse Schallisolationsmessgeraet
GB2317698A (en) * 1983-10-10 1998-04-01 Secr Defence Acoustic sink for a sonar dome

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334260A1 (de) * 1983-09-22 1985-04-11 Werner Dipl Ing Widmeier Schallmessgeraet
DE19508663C2 (de) * 1995-03-14 2001-03-08 Deutsch Zentr Luft & Raumfahrt Vorrichtung zur Druckmessung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906443A1 (de) * 1978-02-24 1979-09-27 Telediffusion Fse Schallisolationsmessgeraet
DK151647B (da) * 1978-02-24 1987-12-21 Telediffusion Fse Anlaeg til direkte maaling af lydtransmissionsniveauet for et emne eller et system
GB2317698A (en) * 1983-10-10 1998-04-01 Secr Defence Acoustic sink for a sonar dome
GB2317698B (en) * 1983-10-10 1998-07-15 Secr Defence Acoustic sink for a sonar dome

Also Published As

Publication number Publication date
FR2274032A1 (fr) 1976-01-02
ES438272A1 (es) 1977-01-16
BE829867A (fr) 1975-10-01
DE2524467C3 (de) 1979-03-15
IT1038692B (it) 1979-11-30
CH592869A5 (it) 1977-11-15
FR2274032B1 (it) 1976-10-15
DE2524467A1 (de) 1975-12-18
DE2524467B2 (de) 1978-07-06

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Legal Events

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