IT1205507B - ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE - Google Patents

ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE

Info

Publication number
IT1205507B
IT1205507B IT02932/86A IT293286A IT1205507B IT 1205507 B IT1205507 B IT 1205507B IT 02932/86 A IT02932/86 A IT 02932/86A IT 293286 A IT293286 A IT 293286A IT 1205507 B IT1205507 B IT 1205507B
Authority
IT
Italy
Prior art keywords
trumpet
electromechanical
detectors
excitation
resonance
Prior art date
Application number
IT02932/86A
Other languages
Italian (it)
Other versions
IT8602932A0 (en
Inventor
Tullio Giorgioni
Bruno Cortinovis
Original Assignee
Electronsystem Spa
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 Electronsystem Spa filed Critical Electronsystem Spa
Priority to IT02932/86A priority Critical patent/IT1205507B/en
Publication of IT8602932A0 publication Critical patent/IT8602932A0/en
Priority to EP87107567A priority patent/EP0266485A3/en
Priority to JP62141318A priority patent/JPS63124095A/en
Application granted granted Critical
Publication of IT1205507B publication Critical patent/IT1205507B/en

Links

Classifications

    • 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
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/52—Electrodynamic transducer
    • B06B2201/53—Electrodynamic transducer with vibrating magnet or coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
IT02932/86A 1986-11-05 1986-11-05 ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE IT1205507B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT02932/86A IT1205507B (en) 1986-11-05 1986-11-05 ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE
EP87107567A EP0266485A3 (en) 1986-11-05 1987-05-24 Electromechanical horn with excitation of its acoustic diaphragm controlled electronically by sensors which measure its resonance frequency
JP62141318A JPS63124095A (en) 1986-11-05 1987-06-05 Electromechanical type phone by excitation of acoustic diaphragm which is electrically controlled with sensor for measuring resonance frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02932/86A IT1205507B (en) 1986-11-05 1986-11-05 ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE

Publications (2)

Publication Number Publication Date
IT8602932A0 IT8602932A0 (en) 1986-11-05
IT1205507B true IT1205507B (en) 1989-03-23

Family

ID=11104011

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02932/86A IT1205507B (en) 1986-11-05 1986-11-05 ELECTROMECHANICAL TRUMPET WITH EXCITATION OF THE SOUND MEMBRANE ELECTRONICALLY PILOTED BY DETECTORS OF ITS FREQUENCY OF RESONANCE

Country Status (3)

Country Link
EP (1) EP0266485A3 (en)
JP (1) JPS63124095A (en)
IT (1) IT1205507B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461896B (en) * 1988-06-29 1990-04-09 Infrasonik Ab LOW FREQUENCY SOUND GENERATOR GRILL
IT1228767B (en) * 1989-03-29 1991-07-03 Electronsystem Spa ELECTRONICALLY PILOTED HORN FOR MOTOR VEHICLES.
WO2000000299A1 (en) * 1998-06-29 2000-01-06 Matsushita Electric Industrial Co., Ltd. Electrical/mechanical/sound converter and apparatus of electrical/mechanical/sound conversion
EP1383108A1 (en) * 2002-07-19 2004-01-21 Mark Thomas Coward A horn for generating a sound
WO2005034057A1 (en) * 2003-10-09 2005-04-14 Fabbrica Italiana Accumulatori Motocarri Montecchio F.I.A.M.M. S.P.A. Audible warning device and operating method
DE102005015554A1 (en) * 2005-04-04 2006-10-05 Werma Signaltechnik Gmbh + Co. Kg Signaling device e.g. horn, for use with technical device e.g. machine, has sensor unit to detect resonance vibration of acoustic signal generator e.g. piezoelectric plate, and modulation unit to modulate carrier wave of generator
JP2011257685A (en) * 2010-06-11 2011-12-22 Hamanako Denso Co Ltd Alarm device
DE102013221182B4 (en) * 2013-10-18 2021-05-06 Volkswagen Aktiengesellschaft Acoustic signaling system and arrangement and method for operating an acoustic signaling system for a motor vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52309B2 (en) * 1971-05-15 1977-01-06
DE2448685A1 (en) * 1974-10-12 1976-04-22 Bosch Gmbh Robert Electro-magnetic signal horn with armature attached to membrane - ferro-magnetic element on armature in inductive coupling path
US4395665A (en) * 1981-06-09 1983-07-26 The Arthur G. Russell Company, Incorporated Control system for vibrating a member at its resonant frequency
DE3442483A1 (en) * 1984-11-22 1986-05-22 Robert Bosch Gmbh, 7000 Stuttgart Method for solid-state control of the operating frequency of the oscillating armature of an electromagnetic warning horn

Also Published As

Publication number Publication date
EP0266485A3 (en) 1988-11-02
EP0266485A2 (en) 1988-05-11
IT8602932A0 (en) 1986-11-05
JPS63124095A (en) 1988-05-27

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