BE593636A - Variable impecance acoustic resonator - Google Patents

Variable impecance acoustic resonator

Info

Publication number
BE593636A
BE593636A BE593636A BE593636A BE593636A BE 593636 A BE593636 A BE 593636A BE 593636 A BE593636 A BE 593636A BE 593636 A BE593636 A BE 593636A BE 593636 A BE593636 A BE 593636A
Authority
BE
Belgium
Prior art keywords
impecance
variable
acoustic resonator
resonator
acoustic
Prior art date
Application number
BE593636A
Other languages
French (fr)
Original Assignee
Citroen Sa Andre
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 Citroen Sa Andre filed Critical Citroen Sa Andre
Publication of BE593636A publication Critical patent/BE593636A/en

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/16—Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/26—Devices characterised by the use of fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
BE593636A 1959-08-07 1960-08-01 Variable impecance acoustic resonator BE593636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR802320A FR1241787A (en) 1959-08-07 1959-08-07 Variable impedance acoustic resonator

Publications (1)

Publication Number Publication Date
BE593636A true BE593636A (en) 1960-12-01

Family

ID=8718103

Family Applications (1)

Application Number Title Priority Date Filing Date
BE593636A BE593636A (en) 1959-08-07 1960-08-01 Variable impecance acoustic resonator

Country Status (4)

Country Link
BE (1) BE593636A (en)
FR (1) FR1241787A (en)
GB (1) GB914274A (en)
LU (1) LU39035A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228356C2 (en) * 1992-08-26 1995-10-19 Daimler Benz Aerospace Ag Cavity resonator for noise reduction

Also Published As

Publication number Publication date
LU39035A1 (en) 1960-10-03
FR1241787A (en) 1960-09-23
GB914274A (en) 1963-01-02

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