JPS57151877A - Acoustic transponder - Google Patents

Acoustic transponder

Info

Publication number
JPS57151877A
JPS57151877A JP56036445A JP3644581A JPS57151877A JP S57151877 A JPS57151877 A JP S57151877A JP 56036445 A JP56036445 A JP 56036445A JP 3644581 A JP3644581 A JP 3644581A JP S57151877 A JPS57151877 A JP S57151877A
Authority
JP
Japan
Prior art keywords
boot
vertical direction
ultrasonic wave
outside
acoustic transponder
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.)
Granted
Application number
JP56036445A
Other languages
Japanese (ja)
Other versions
JPS6349192B2 (en
Inventor
Hiroshi Kamata
Akio Kurata
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP56036445A priority Critical patent/JPS57151877A/en
Publication of JPS57151877A publication Critical patent/JPS57151877A/en
Publication of JPS6349192B2 publication Critical patent/JPS6349192B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain the acoustic transponder which can effectively transmit and receive ultrasonic wave signals in the vertical direction, by providing a cone shaped reflecting body in the inside or outside of a boot. CONSTITUTION:The cone shaped reflecting body 13 is provided in the inside of the boot 10 at the tip part of a hermetically sealed cabinet 7. Thus the directivity of the ultrasonic wave transmitting the receiving signals in the vertical direction is improved. In the case the reflection body is provided at the outside of the boot, the same effect can be obtained. Thus the transmission and reception of the ultrasonic wave signal in the vertical direction can be effectively performed.
JP56036445A 1981-03-16 1981-03-16 Acoustic transponder Granted JPS57151877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56036445A JPS57151877A (en) 1981-03-16 1981-03-16 Acoustic transponder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56036445A JPS57151877A (en) 1981-03-16 1981-03-16 Acoustic transponder

Publications (2)

Publication Number Publication Date
JPS57151877A true JPS57151877A (en) 1982-09-20
JPS6349192B2 JPS6349192B2 (en) 1988-10-03

Family

ID=12470002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56036445A Granted JPS57151877A (en) 1981-03-16 1981-03-16 Acoustic transponder

Country Status (1)

Country Link
JP (1) JPS57151877A (en)

Also Published As

Publication number Publication date
JPS6349192B2 (en) 1988-10-03

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