JPS5685883A - Phono coupler - Google Patents

Phono coupler

Info

Publication number
JPS5685883A
JPS5685883A JP16230879A JP16230879A JPS5685883A JP S5685883 A JPS5685883 A JP S5685883A JP 16230879 A JP16230879 A JP 16230879A JP 16230879 A JP16230879 A JP 16230879A JP S5685883 A JPS5685883 A JP S5685883A
Authority
JP
Japan
Prior art keywords
film
electrode
electrodes
vibration wave
main
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
JP16230879A
Other languages
Japanese (ja)
Inventor
Aisaku Nagai
Akira Hamada
Naohiro Murayama
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Priority to JP16230879A priority Critical patent/JPS5685883A/en
Publication of JPS5685883A publication Critical patent/JPS5685883A/en
Pending legal-status Critical Current

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
    • B06B1/06—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
    • B06B1/0688—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 with foil-type piezoelectric elements, e.g. PVDF

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To insulate a high molecular piezoelectric film from external acoustic sound and light rays by setting the main direction of propagating vibration wave produced at an input electrode perpendicularly to an electrode confronting direction and reducing the reflecting noise applied to an output electrode. CONSTITUTION:Since the elongating and contracting motion of a film due to reverse piezoelectricity produced at input side electrodes 1, 1' occur in the main orientation axial direction (an MD direction of arrow) of the film when electrode pairs 1, 1' and 2, 2' are confronted in the vicinity at an equal interval, the vibration wave is propagated in the MD direction, and is reflected at both ends of the film in the MD direction. If the MD direction of the film is a direction perpendicular to the electrode confronting direction as designated by an arrow (b), the main direction of the vibration wave propagating from the electrodes 1, 1' is a direction as designated by (b), and almost no reflecting wave noise is applied to the electrodes 2, 2'. Thus, the film can be insulated from external acoustic sound and light rays.
JP16230879A 1979-12-14 1979-12-14 Phono coupler Pending JPS5685883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16230879A JPS5685883A (en) 1979-12-14 1979-12-14 Phono coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16230879A JPS5685883A (en) 1979-12-14 1979-12-14 Phono coupler

Publications (1)

Publication Number Publication Date
JPS5685883A true JPS5685883A (en) 1981-07-13

Family

ID=15752034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16230879A Pending JPS5685883A (en) 1979-12-14 1979-12-14 Phono coupler

Country Status (1)

Country Link
JP (1) JPS5685883A (en)

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