JPS55151280A - Phased array sonar - Google Patents

Phased array sonar

Info

Publication number
JPS55151280A
JPS55151280A JP5928179A JP5928179A JPS55151280A JP S55151280 A JPS55151280 A JP S55151280A JP 5928179 A JP5928179 A JP 5928179A JP 5928179 A JP5928179 A JP 5928179A JP S55151280 A JPS55151280 A JP S55151280A
Authority
JP
Japan
Prior art keywords
delay
signals
electrostatic capacity
micro computer
varactor diode
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
JP5928179A
Other languages
Japanese (ja)
Other versions
JPS6045830B2 (en
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 JP54059281A priority Critical patent/JPS6045830B2/en
Publication of JPS55151280A publication Critical patent/JPS55151280A/en
Publication of JPS6045830B2 publication Critical patent/JPS6045830B2/en
Expired 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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation

Abstract

PURPOSE:To make it possible to steer a beam by adjusting the delay value of a delay line by controlling the electrostatic capacity of a varactor diode by the output of a micro computer, etc. CONSTITUTION:Prior to the start of wave reception at one azimuth, control nucleus P making use of a micro computer, etc., outputs sequentially delay-value control signals for individual delay lines for matching the directivity of a received wave to the azimuth angle. Through D/A converter D/A, those output signals are converted into analog signals, which are sequentially supplied to corresponding to delay lines fi by signal distributor MX. The electrostatic capacity of varactor diode VD varies according to analog control signals, so that delay line fi will be variable in delay time.
JP54059281A 1979-05-15 1979-05-15 Phased Array Sona Expired JPS6045830B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54059281A JPS6045830B2 (en) 1979-05-15 1979-05-15 Phased Array Sona

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54059281A JPS6045830B2 (en) 1979-05-15 1979-05-15 Phased Array Sona

Publications (2)

Publication Number Publication Date
JPS55151280A true JPS55151280A (en) 1980-11-25
JPS6045830B2 JPS6045830B2 (en) 1985-10-12

Family

ID=13108839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54059281A Expired JPS6045830B2 (en) 1979-05-15 1979-05-15 Phased Array Sona

Country Status (1)

Country Link
JP (1) JPS6045830B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148955A (en) * 1982-03-02 1983-09-05 Toshiba Corp Ultrasonic flaw detector
JPS60150736A (en) * 1984-01-18 1985-08-08 株式会社東芝 Delay circuit for ultrasonic diagnostic apparatus
JPS60192278A (en) * 1984-03-12 1985-09-30 Furuno Electric Co Ltd Sonar
JPS60192279A (en) * 1984-03-12 1985-09-30 Furuno Electric Co Ltd Sonar
JPS6111029A (en) * 1984-06-25 1986-01-18 横河メディカルシステム株式会社 Ultrasonic diagnostic apparatus
JPS6165181A (en) * 1984-09-06 1986-04-03 Furuno Electric Co Ltd Signal detector of wide range underwater detector
WO1986006838A1 (en) * 1985-05-15 1986-11-20 Yokogawa Medical Systems, Ltd. Ultrasonic flaw detector
JPH02300686A (en) * 1989-05-16 1990-12-12 Hitachi Medical Corp Delay line and ultrasonic diagnostic device for which this delay line is used

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148955A (en) * 1982-03-02 1983-09-05 Toshiba Corp Ultrasonic flaw detector
JPH0157735B2 (en) * 1982-03-02 1989-12-07 Tokyo Shibaura Electric Co
JPS60150736A (en) * 1984-01-18 1985-08-08 株式会社東芝 Delay circuit for ultrasonic diagnostic apparatus
JPS60192278A (en) * 1984-03-12 1985-09-30 Furuno Electric Co Ltd Sonar
JPS60192279A (en) * 1984-03-12 1985-09-30 Furuno Electric Co Ltd Sonar
JPS6111029A (en) * 1984-06-25 1986-01-18 横河メディカルシステム株式会社 Ultrasonic diagnostic apparatus
JPS6165181A (en) * 1984-09-06 1986-04-03 Furuno Electric Co Ltd Signal detector of wide range underwater detector
JPH042910B2 (en) * 1984-09-06 1992-01-21
WO1986006838A1 (en) * 1985-05-15 1986-11-20 Yokogawa Medical Systems, Ltd. Ultrasonic flaw detector
JPH02300686A (en) * 1989-05-16 1990-12-12 Hitachi Medical Corp Delay line and ultrasonic diagnostic device for which this delay line is used

Also Published As

Publication number Publication date
JPS6045830B2 (en) 1985-10-12

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