JPS55129776A - Sound field scanning method in phased array sonar - Google Patents

Sound field scanning method in phased array sonar

Info

Publication number
JPS55129776A
JPS55129776A JP3793379A JP3793379A JPS55129776A JP S55129776 A JPS55129776 A JP S55129776A JP 3793379 A JP3793379 A JP 3793379A JP 3793379 A JP3793379 A JP 3793379A JP S55129776 A JPS55129776 A JP S55129776A
Authority
JP
Japan
Prior art keywords
wave
sound field
reflection
scanning line
linear scan
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
JP3793379A
Other languages
Japanese (ja)
Inventor
Yasuto Takeuchi
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP3793379A priority Critical patent/JPS55129776A/en
Publication of JPS55129776A publication Critical patent/JPS55129776A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain greater finding area and to enable linear scanning for the area, by receiving waves while moving the focus of the reflection spherical waves of sound field along the virtual sound line in agreement with the scanning line of the linear scan. CONSTITUTION:The transmission and reception unit D/R is connected to the array transducer TD for driving TD and signal processing at wave reception. The wave transmission drives one element at the center of TD to radiate the wave forming the spherical surface. Further, in receiving wave, the scanning line S the same as the linear scan in the sound field is assumed and the focus is in matching with the position of reflection source sequentially in matching with the return time of the reflection wave from each reflection source on the scanning line. Thus, each scanning line is the appearent sound line where the reflection wave return. Accordingly, the sound field is effectively made for linear scan, and echogram forming linear scan can be obtained by displaying the reception wave signal.
JP3793379A 1979-03-29 1979-03-29 Sound field scanning method in phased array sonar Pending JPS55129776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3793379A JPS55129776A (en) 1979-03-29 1979-03-29 Sound field scanning method in phased array sonar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3793379A JPS55129776A (en) 1979-03-29 1979-03-29 Sound field scanning method in phased array sonar

Publications (1)

Publication Number Publication Date
JPS55129776A true JPS55129776A (en) 1980-10-07

Family

ID=12511349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3793379A Pending JPS55129776A (en) 1979-03-29 1979-03-29 Sound field scanning method in phased array sonar

Country Status (1)

Country Link
JP (1) JPS55129776A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052782A (en) * 1983-08-31 1985-03-26 Yokogawa Medical Syst Ltd Azimuth adaptive type phased array sonar
EP0986128A1 (en) * 1998-09-07 2000-03-15 Medison Co., Ltd. Method for forming a spherical wave by superposition of a plurality of limited plane waves
JP2002214204A (en) * 2001-01-19 2002-07-31 Toshiba Corp Ultrasonic flaw detector and method using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052782A (en) * 1983-08-31 1985-03-26 Yokogawa Medical Syst Ltd Azimuth adaptive type phased array sonar
JPH0131149B2 (en) * 1983-08-31 1989-06-23 Yokokawa Medeikaru Shisutemu Kk
EP0986128A1 (en) * 1998-09-07 2000-03-15 Medison Co., Ltd. Method for forming a spherical wave by superposition of a plurality of limited plane waves
US6292434B1 (en) 1998-09-07 2001-09-18 Medison Co., Ltd. Method for forming a spherical wave by superposition of a plurality of limited plane waves
JP2002214204A (en) * 2001-01-19 2002-07-31 Toshiba Corp Ultrasonic flaw detector and method using the same

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