JPS6486083A - Folded surface arranged ultrasonic transducer - Google Patents

Folded surface arranged ultrasonic transducer

Info

Publication number
JPS6486083A
JPS6486083A JP1337887A JP1337887A JPS6486083A JP S6486083 A JPS6486083 A JP S6486083A JP 1337887 A JP1337887 A JP 1337887A JP 1337887 A JP1337887 A JP 1337887A JP S6486083 A JPS6486083 A JP S6486083A
Authority
JP
Japan
Prior art keywords
main axes
transducer
vibration elements
inclination
fundamental wave
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
JP1337887A
Other languages
Japanese (ja)
Inventor
Shinsei Takao
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.)
Koden Electronics Co Ltd
Original Assignee
Koden Electronics 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 Koden Electronics Co Ltd filed Critical Koden Electronics Co Ltd
Priority to JP1337887A priority Critical patent/JPS6486083A/en
Publication of JPS6486083A publication Critical patent/JPS6486083A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To widen the directional angel of double harmonic without altering the directional angle of a fundamental wave, by respectively arranging the radiation main axes of a plurality of multifrequency type vibration elements in a direction separating with respect to the radiation main axes of the whole of a transducer so as to provide an appropriate inclination. CONSTITUTION:An ultrasonic multifrequency type transducer is constituted by arranging a plurality of multifrequency type vibration elements 1 in an outer housing 2. The vibration elements 1 are arranged so that the radiation main axes (u) thereof are inclined in a direction separating with respect to the radiation main axis Z of the whole of the transducer. When the vibration elements 1 are vibrated by a fundamental wave, the effect of the inclination of the main axes (u) is reduced because of a long wavelength and a directional angle almost same to that obtained in a conventional example wherein the elements 1 are arranged in a planer state is obtained. At the time of vibration by double harmonic, the effect of the inclination of the main axes (u) appears and a directional angle widened as compared with a conventional one is obtained. By this method, a conventional defect that a sonic wave searching range due to the double harmonic becomes extremely narrow as a compared with that by the fundamental wave is eliminated.
JP1337887A 1987-01-23 1987-01-23 Folded surface arranged ultrasonic transducer Pending JPS6486083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1337887A JPS6486083A (en) 1987-01-23 1987-01-23 Folded surface arranged ultrasonic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1337887A JPS6486083A (en) 1987-01-23 1987-01-23 Folded surface arranged ultrasonic transducer

Publications (1)

Publication Number Publication Date
JPS6486083A true JPS6486083A (en) 1989-03-30

Family

ID=11831431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1337887A Pending JPS6486083A (en) 1987-01-23 1987-01-23 Folded surface arranged ultrasonic transducer

Country Status (1)

Country Link
JP (1) JPS6486083A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180100922A1 (en) * 2016-10-12 2018-04-12 Garmin Switzerland Gmbh Frequency steered sonar array orientation
US11525907B2 (en) 2016-01-25 2022-12-13 Garmin Switzerland Gmbh Frequency steered sonar user interface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11525907B2 (en) 2016-01-25 2022-12-13 Garmin Switzerland Gmbh Frequency steered sonar user interface
US20180100922A1 (en) * 2016-10-12 2018-04-12 Garmin Switzerland Gmbh Frequency steered sonar array orientation
US10890660B2 (en) * 2016-10-12 2021-01-12 Garmin Switzerland Gmbh Frequency steered sonar array orientation
US20210096244A1 (en) * 2016-10-12 2021-04-01 Garmin Switzerland Gmbh Frequency steered sonar array orientation

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