JPS645198A - Plane speaker - Google Patents

Plane speaker

Info

Publication number
JPS645198A
JPS645198A JP15974087A JP15974087A JPS645198A JP S645198 A JPS645198 A JP S645198A JP 15974087 A JP15974087 A JP 15974087A JP 15974087 A JP15974087 A JP 15974087A JP S645198 A JPS645198 A JP S645198A
Authority
JP
Japan
Prior art keywords
vibrators
frequency characteristics
antipode
amplitude
influence
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.)
Pending
Application number
JP15974087A
Other languages
Japanese (ja)
Inventor
Takashi Mikuniya
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.)
Foster Electric Co Ltd
Original Assignee
Foster Electric Co Ltd
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 Foster Electric Co Ltd filed Critical Foster Electric Co Ltd
Priority to JP15974087A priority Critical patent/JPS645198A/en
Publication of JPS645198A publication Critical patent/JPS645198A/en
Pending legal-status Critical Current

Links

Landscapes

  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To flatten frequency characteristics and to improve acoustic characteristics by mounting vibrators on the antipode of the amplitude of the flat plate part of a plane diaphragm in a free vibration mode. CONSTITUTION:Plural vibrators 2 are mounted on the antipode of the amplitude of the flat plate part of the diaphragm 1 in the free vibration mode. Mass is given by mounting the vibrators 2 like piezoelectric elements and the vibrators 2 are driven at the same time while their band is set to a frequency corresponding to the bottom of frequency characteristics generated under the influence of partial vibrations, so the influence of the mass suppresses the partial vibrations. Consequently, the frequency characteristics are flattened and the acoustic characteristics are improved.
JP15974087A 1987-06-29 1987-06-29 Plane speaker Pending JPS645198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15974087A JPS645198A (en) 1987-06-29 1987-06-29 Plane speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15974087A JPS645198A (en) 1987-06-29 1987-06-29 Plane speaker

Publications (1)

Publication Number Publication Date
JPS645198A true JPS645198A (en) 1989-01-10

Family

ID=15700233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15974087A Pending JPS645198A (en) 1987-06-29 1987-06-29 Plane speaker

Country Status (1)

Country Link
JP (1) JPS645198A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949447A1 (en) 1996-09-02 1999-10-13 Blazquez Navarro, D. Vicente Self-contained electronic system for monitoring purgers, valves and installations in real time
WO2018216711A1 (en) * 2017-05-23 2018-11-29 北陸電気工業株式会社 Piezoelectric-type flat speaker and method of forming same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949447A1 (en) 1996-09-02 1999-10-13 Blazquez Navarro, D. Vicente Self-contained electronic system for monitoring purgers, valves and installations in real time
WO2018216711A1 (en) * 2017-05-23 2018-11-29 北陸電気工業株式会社 Piezoelectric-type flat speaker and method of forming same

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