EP2922050A1 - Akustischer Wellenleiter - Google Patents

Akustischer Wellenleiter Download PDF

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Publication number
EP2922050A1
EP2922050A1 EP15158244.2A EP15158244A EP2922050A1 EP 2922050 A1 EP2922050 A1 EP 2922050A1 EP 15158244 A EP15158244 A EP 15158244A EP 2922050 A1 EP2922050 A1 EP 2922050A1
Authority
EP
European Patent Office
Prior art keywords
acoustic wave
transversal
acoustic
section
resonant cavity
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.)
Withdrawn
Application number
EP15158244.2A
Other languages
English (en)
French (fr)
Inventor
Dario Cinanni
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.)
Ciare Srl
Original Assignee
Ciare Srl
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 Ciare Srl filed Critical Ciare Srl
Publication of EP2922050A1 publication Critical patent/EP2922050A1/de
Withdrawn legal-status Critical Current

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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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
    • 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

Definitions

  • the main lobe 900 of the acoustic beam at different frequencies f is comprised between 50 and 70 dB, while the secondary side lobes 910 are maintained sufficiently intense so as to be higher than at least 40 dB and to cover a sound angular diffusion range as wide as possible on the horizontal plane C.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
EP15158244.2A 2014-03-10 2015-03-09 Akustischer Wellenleiter Withdrawn EP2922050A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20140361 2014-03-10

Publications (1)

Publication Number Publication Date
EP2922050A1 true EP2922050A1 (de) 2015-09-23

Family

ID=50733157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15158244.2A Withdrawn EP2922050A1 (de) 2014-03-10 2015-03-09 Akustischer Wellenleiter

Country Status (1)

Country Link
EP (1) EP2922050A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2015783B1 (nl) * 2015-11-12 2017-06-02 Mastenbroek Erik Geluidsgolfgeleider, geluidsgolfgeleidermodule, en luidsprekerinrichting.
CN112213397A (zh) * 2020-09-29 2021-01-12 成都英萨传感技术研究有限公司 一种增强超声波探测距离的聚声器
US20210156994A1 (en) * 2018-08-03 2021-05-27 Pepperl + Fuchs Se 1d ultrasonic transducer unit for area monitoring
US20210156996A1 (en) * 2018-08-03 2021-05-27 Pepperl + Fuchs Se 1d ultrasonic transducer unit for hazard identification for a vehicle
US20220163324A1 (en) * 2018-08-03 2022-05-26 Pepperl + Fuchs Se 1d ultrasonic transducer unit for material detection

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666057A (en) * 1921-07-12 1928-04-10 Grissinger Elwood Sound-projecting apparatus
US4206831A (en) * 1976-03-29 1980-06-10 Robert B. Welch Loudspeaker coupler
US4324313A (en) 1978-08-01 1982-04-13 Tomiyo Nakagawa Exponential horn for use in horn-type loudspeakers
US4465160A (en) * 1980-10-30 1984-08-14 Matsushita Electric Industrial Co., Ltd. Horn speaker
US5163167A (en) 1988-02-29 1992-11-10 Heil Acoustics Sound wave guide
US5925856A (en) * 1996-06-17 1999-07-20 Meyer Sound Laboratories Incorporated Loudspeaker horn
US6059069A (en) 1999-03-05 2000-05-09 Peavey Electronics Corporation Loudspeaker waveguide design
US6585077B2 (en) 2000-09-08 2003-07-01 Eric Vincenot Sound-producing device with acoustic waveguide
US20040216948A1 (en) * 2003-02-21 2004-11-04 Meyer Sound Laboratories Incorporated Loudspeaker horn and method for controlling grating lobes in a line array of acoustic sources
US20050008181A1 (en) * 2003-07-11 2005-01-13 Geddes Earl Rossell Acoustic waveguide for controlled sound radiation
FR2994046A1 (fr) * 2012-07-27 2014-01-31 Jean Noel Duchamp Dispositif de sonorisation a pavillon et reflecteur confondus

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666057A (en) * 1921-07-12 1928-04-10 Grissinger Elwood Sound-projecting apparatus
US4206831A (en) * 1976-03-29 1980-06-10 Robert B. Welch Loudspeaker coupler
US4324313A (en) 1978-08-01 1982-04-13 Tomiyo Nakagawa Exponential horn for use in horn-type loudspeakers
US4465160A (en) * 1980-10-30 1984-08-14 Matsushita Electric Industrial Co., Ltd. Horn speaker
US5163167A (en) 1988-02-29 1992-11-10 Heil Acoustics Sound wave guide
US5925856A (en) * 1996-06-17 1999-07-20 Meyer Sound Laboratories Incorporated Loudspeaker horn
US6059069A (en) 1999-03-05 2000-05-09 Peavey Electronics Corporation Loudspeaker waveguide design
US6585077B2 (en) 2000-09-08 2003-07-01 Eric Vincenot Sound-producing device with acoustic waveguide
US20040216948A1 (en) * 2003-02-21 2004-11-04 Meyer Sound Laboratories Incorporated Loudspeaker horn and method for controlling grating lobes in a line array of acoustic sources
US20050008181A1 (en) * 2003-07-11 2005-01-13 Geddes Earl Rossell Acoustic waveguide for controlled sound radiation
US7068805B2 (en) 2003-07-11 2006-06-27 Earl Russell Geddes Acoustic waveguide for controlled sound radiation
FR2994046A1 (fr) * 2012-07-27 2014-01-31 Jean Noel Duchamp Dispositif de sonorisation a pavillon et reflecteur confondus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2015783B1 (nl) * 2015-11-12 2017-06-02 Mastenbroek Erik Geluidsgolfgeleider, geluidsgolfgeleidermodule, en luidsprekerinrichting.
US20210156994A1 (en) * 2018-08-03 2021-05-27 Pepperl + Fuchs Se 1d ultrasonic transducer unit for area monitoring
US20210156996A1 (en) * 2018-08-03 2021-05-27 Pepperl + Fuchs Se 1d ultrasonic transducer unit for hazard identification for a vehicle
US20220163324A1 (en) * 2018-08-03 2022-05-26 Pepperl + Fuchs Se 1d ultrasonic transducer unit for material detection
US11808850B2 (en) * 2018-08-03 2023-11-07 Pepperl + Fuchs Se 1D ultrasonic transducer unit for hazard identification for a vehicle
US11867805B2 (en) * 2018-08-03 2024-01-09 Pepperl + Fuchs Se 1D ultrasonic transducer unit for area monitoring
US11906293B2 (en) * 2018-08-03 2024-02-20 Pepperl + Fuchs Se 1D ultrasonic transducer unit for material detection
CN112213397A (zh) * 2020-09-29 2021-01-12 成都英萨传感技术研究有限公司 一种增强超声波探测距离的聚声器
CN112213397B (zh) * 2020-09-29 2024-01-30 成都英萨传感技术研究有限公司 一种增强超声波探测距离的聚声器

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