JPS5513521A - Sound collector for ultrasonic wave utilizing reflection resonance - Google Patents

Sound collector for ultrasonic wave utilizing reflection resonance

Info

Publication number
JPS5513521A
JPS5513521A JP8518878A JP8518878A JPS5513521A JP S5513521 A JPS5513521 A JP S5513521A JP 8518878 A JP8518878 A JP 8518878A JP 8518878 A JP8518878 A JP 8518878A JP S5513521 A JPS5513521 A JP S5513521A
Authority
JP
Japan
Prior art keywords
ultrasonic wave
hollow case
circumference
resonance body
sound collector
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
JP8518878A
Other languages
Japanese (ja)
Inventor
Takehisa Sonobe
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.)
PURANSERU KK
SANSHIYOO KK
Sansho Co Ltd
Original Assignee
PURANSERU KK
SANSHIYOO KK
Sansho 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 PURANSERU KK, SANSHIYOO KK, Sansho Co Ltd filed Critical PURANSERU KK
Priority to JP8518878A priority Critical patent/JPS5513521A/en
Publication of JPS5513521A publication Critical patent/JPS5513521A/en
Pending legal-status Critical Current

Links

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
    • G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones

Abstract

PURPOSE:To improve the attenuation dependent upon directions by providing a resonance body consisting of a hollow case which has plural entrances for ultrasonic waves on the circumference. CONSTITUTION:Ultrasonic wave oscillation part 2 excited by ultrasonic wave oscillator circuit 1 radiates ultrasonic waves. Since an ultrasonic wave collector is constituted as resonance body 3 which has microphone 6 internally and consists of a hollow case provided with plural holes 4 on the circumference, the reflection wave, the refracted wave, etc., of the ultrasonic wave are propagated to the inside of the resonance body from plural holes 4 on the circumference of the hollow case and are resonated to the hollow case even if the sound collector above is placed outside the range of the effective angle of ultrasonic wave oscillator 2. Then, a strong vibration is given to microphone 6, so that an efficient ultrasonic wave sound collection can be performed.
JP8518878A 1978-07-14 1978-07-14 Sound collector for ultrasonic wave utilizing reflection resonance Pending JPS5513521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8518878A JPS5513521A (en) 1978-07-14 1978-07-14 Sound collector for ultrasonic wave utilizing reflection resonance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8518878A JPS5513521A (en) 1978-07-14 1978-07-14 Sound collector for ultrasonic wave utilizing reflection resonance

Publications (1)

Publication Number Publication Date
JPS5513521A true JPS5513521A (en) 1980-01-30

Family

ID=13851674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8518878A Pending JPS5513521A (en) 1978-07-14 1978-07-14 Sound collector for ultrasonic wave utilizing reflection resonance

Country Status (1)

Country Link
JP (1) JPS5513521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63501029A (en) * 1985-10-02 1988-04-14 ノルデイスク　カルトロ　アクチ−ボラグ strip-shaped thin plate nails

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63501029A (en) * 1985-10-02 1988-04-14 ノルデイスク　カルトロ　アクチ−ボラグ strip-shaped thin plate nails

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