JPS5774675A - Wave transmitter-receiver done for wide range underwater detecting device - Google Patents

Wave transmitter-receiver done for wide range underwater detecting device

Info

Publication number
JPS5774675A
JPS5774675A JP14493880A JP14493880A JPS5774675A JP S5774675 A JPS5774675 A JP S5774675A JP 14493880 A JP14493880 A JP 14493880A JP 14493880 A JP14493880 A JP 14493880A JP S5774675 A JPS5774675 A JP S5774675A
Authority
JP
Japan
Prior art keywords
wide range
detecting device
wave
receiver
ultrasonic 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
JP14493880A
Other languages
Japanese (ja)
Inventor
Hideji Morimatsu
Masakazu Yamamoto
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP14493880A priority Critical patent/JPS5774675A/en
Publication of JPS5774675A publication Critical patent/JPS5774675A/en
Pending 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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To prevent radiation of unnecessary ultrasonic wave, by providing bottom of a dome with an acoustic shield. CONSTITUTION:Onto the bottom of a wave transmitter-receiver dome 4 of a wide range underwater detecting device, a sound wave shielding material 5, such as neoprene, etc., is seucrely attached. It is possible, by using this mechanism, to prevent radiation of unnecessary ultrasonic wave in the immediate downward direction due to reflection in the dome wall at the time when the ultrasonic wave is radiated from an oscillator 3 of the wave trasmitter-receiver 2 in the slant direction. The same principle is applied to the ultrasonic wave being received.
JP14493880A 1980-10-15 1980-10-15 Wave transmitter-receiver done for wide range underwater detecting device Pending JPS5774675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14493880A JPS5774675A (en) 1980-10-15 1980-10-15 Wave transmitter-receiver done for wide range underwater detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14493880A JPS5774675A (en) 1980-10-15 1980-10-15 Wave transmitter-receiver done for wide range underwater detecting device

Publications (1)

Publication Number Publication Date
JPS5774675A true JPS5774675A (en) 1982-05-10

Family

ID=15373673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14493880A Pending JPS5774675A (en) 1980-10-15 1980-10-15 Wave transmitter-receiver done for wide range underwater detecting device

Country Status (1)

Country Link
JP (1) JPS5774675A (en)

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