IT1037087B - DEVICE FOR GENERATING ACOUSTIC RADIATION FIELDS IN THE SHAPE OF AN UMBRELLA - Google Patents

DEVICE FOR GENERATING ACOUSTIC RADIATION FIELDS IN THE SHAPE OF AN UMBRELLA

Info

Publication number
IT1037087B
IT1037087B IT29057/74A IT2905774A IT1037087B IT 1037087 B IT1037087 B IT 1037087B IT 29057/74 A IT29057/74 A IT 29057/74A IT 2905774 A IT2905774 A IT 2905774A IT 1037087 B IT1037087 B IT 1037087B
Authority
IT
Italy
Prior art keywords
umbrella
shape
acoustic radiation
radiation fields
generating acoustic
Prior art date
Application number
IT29057/74A
Other languages
Italian (it)
Original Assignee
Sontrix
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 Sontrix filed Critical Sontrix
Application granted granted Critical
Publication of IT1037087B publication Critical patent/IT1037087B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
IT29057/74A 1973-11-05 1974-10-31 DEVICE FOR GENERATING ACOUSTIC RADIATION FIELDS IN THE SHAPE OF AN UMBRELLA IT1037087B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US412884A US3873866A (en) 1973-11-05 1973-11-05 Piezoelectric transducer assembly and method for generating an umbrella shaped radiation pattern

Publications (1)

Publication Number Publication Date
IT1037087B true IT1037087B (en) 1979-11-10

Family

ID=23634876

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29057/74A IT1037087B (en) 1973-11-05 1974-10-31 DEVICE FOR GENERATING ACOUSTIC RADIATION FIELDS IN THE SHAPE OF AN UMBRELLA

Country Status (7)

Country Link
US (1) US3873866A (en)
JP (1) JPS5081082A (en)
CA (1) CA1010140A (en)
DE (1) DE2451446A1 (en)
FR (1) FR2250251B1 (en)
GB (2) GB1478067A (en)
IT (1) IT1037087B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921016A (en) * 1973-12-12 1975-11-18 Proctor & Assoc Co Sonic signal generator and housing
US4155066A (en) * 1975-10-09 1979-05-15 American District Telegraph Company Transducer structure
US4052693A (en) * 1976-03-03 1977-10-04 Westinghouse Electric Corporation Depth sounder
US4042845A (en) * 1976-03-25 1977-08-16 Sontrix Division Of Pittway Corporation Transducer assembly and method for radiating and detecting energy over controlled beam width
DE3131349C2 (en) * 1981-08-07 1983-05-11 Rosenthal Technik Ag, 8672 Selb Piezoelectric three-tone generator
US4413198A (en) * 1981-12-30 1983-11-01 Motorola, Inc. Piezoelectric transducer apparatus
US4630342A (en) * 1984-12-21 1986-12-23 Motorola, Inc. Method of mounting a piezoelectric helmholtz transducer on a printed circuit board
DE3718018A1 (en) * 1987-05-27 1988-12-08 Diehl Gmbh & Co ELECTRONIC ACOUSTIC SIGNALER
DE3913049A1 (en) * 1988-04-20 1989-11-02 Pepperl & Fuchs Ultrasound sensor system
US5386479A (en) * 1992-11-23 1995-01-31 Hersh; Alan S. Piezoelectric sound sources
US10309594B1 (en) 2017-05-01 2019-06-04 Mallory Sonalert Products, Inc. Stack light
USD898600S1 (en) 2017-07-20 2020-10-13 Mallory Sonalert Products, Inc. Stack light
USD976143S1 (en) 2019-05-16 2023-01-24 Mallory Sonalert Products, Inc. Indicator light

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA941949A (en) * 1969-06-25 1974-02-12 Automation Industries Air coupled nondestructive material tester with reflected wave cancellation
US3761956A (en) * 1970-10-01 1973-09-25 Nittan Co Ltd Sound generating device

Also Published As

Publication number Publication date
GB1478067A (en) 1977-06-29
GB1478068A (en) 1977-06-29
US3873866A (en) 1975-03-25
CA1010140A (en) 1977-05-10
FR2250251B1 (en) 1978-04-21
DE2451446A1 (en) 1975-05-07
JPS5081082A (en) 1975-07-01
FR2250251A1 (en) 1975-05-30

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