JPS5617510A - Surface elastic wave element - Google Patents

Surface elastic wave element

Info

Publication number
JPS5617510A
JPS5617510A JP9254179A JP9254179A JPS5617510A JP S5617510 A JPS5617510 A JP S5617510A JP 9254179 A JP9254179 A JP 9254179A JP 9254179 A JP9254179 A JP 9254179A JP S5617510 A JPS5617510 A JP S5617510A
Authority
JP
Japan
Prior art keywords
elastic wave
transducer
wave element
piezoelectric substrate
film
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
JP9254179A
Other languages
Japanese (ja)
Inventor
Masaaki Ono
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9254179A priority Critical patent/JPS5617510A/en
Publication of JPS5617510A publication Critical patent/JPS5617510A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To secure an perfect elimination of the undesired reflected waves as well as enhance the working efficiency of manufacture of the surface elastic wave element, by forming the conductor film at a part between the transducer and the end face of the piezoelectric substrate. CONSTITUTION:For the surface elastic wave element including both wave transmitting and receiving transducers 12-S and 12-R on the surface of piezoelectric substrate 11, conductor film 31 is provided at a part between the transducer and the end face of the piezoelectric substrate approximating to the transducer in order to eliminate the undesired waves to at least one of transducers 12-S and 12-R. The shape of film 31 can be decided according to the distribution of surface wave 32, e.g. film 31 can be divided into several parts and also with addition of groove 33.
JP9254179A 1979-07-23 1979-07-23 Surface elastic wave element Pending JPS5617510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9254179A JPS5617510A (en) 1979-07-23 1979-07-23 Surface elastic wave element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9254179A JPS5617510A (en) 1979-07-23 1979-07-23 Surface elastic wave element

Publications (1)

Publication Number Publication Date
JPS5617510A true JPS5617510A (en) 1981-02-19

Family

ID=14057232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9254179A Pending JPS5617510A (en) 1979-07-23 1979-07-23 Surface elastic wave element

Country Status (1)

Country Link
JP (1) JPS5617510A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174491A (en) * 1986-01-24 1987-07-31 株式会社　利根ボ−リング Air pressure impact type excavator
JPS63167889A (en) * 1986-12-27 1988-07-11 株式会社　利根ボ−リング Multi-air hammer device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174491A (en) * 1986-01-24 1987-07-31 株式会社　利根ボ−リング Air pressure impact type excavator
JPS63167889A (en) * 1986-12-27 1988-07-11 株式会社　利根ボ−リング Multi-air hammer device
JPH0351874B2 (en) * 1986-12-27 1991-08-08 Tone Boring Co

Similar Documents

Publication Publication Date Title
JPS556995A (en) Method of and device for converting convergent ultrasonic wave
DE2960263D1 (en) Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas
GB1529943A (en) Electrical filters including coupled resonators
DE3068075D1 (en) Surface acoustic wave transducer
JPS5617510A (en) Surface elastic wave element
JPS5291669A (en) Piezoelectric vibrator
AU3879078A (en) Acoustic surface wave transducer
JPS5541048A (en) Surface acoustic wave element
USD271568S (en) Ultrasonic wave thickness meter
JPS5768921A (en) Thickness slip quartz oscillator
JPS55151810A (en) Elastic surface wave filter
JPS53132246A (en) Elastic surface wave filter
JPS5545283A (en) Outline slip crystal vibrator
JPS5768920A (en) Thickness slip quartz oscillator
JPS5772494A (en) Ultrasonic probe
JPS5469363A (en) Ultrasonic wave transducer
JPS5768923A (en) Thickness slip quartz oscillator
JPS55156500A (en) Electro-acoustic converting element
JPS5678219A (en) Elastic surface wave device
JPS5646317A (en) Surface elastic wave device
JPS54161247A (en) Elastic surface-wave filter
JPS5775097A (en) Ultrasonic transducer
JPS52115254A (en) Ultrasonic transducer
JPS55140314A (en) Piezoelectric vibrator
JPS5664511A (en) Surface elastic wave filter