JPS55154479A - Ultrasonic wave transmission-reception apparatus - Google Patents

Ultrasonic wave transmission-reception apparatus

Info

Publication number
JPS55154479A
JPS55154479A JP5649980A JP5649980A JPS55154479A JP S55154479 A JPS55154479 A JP S55154479A JP 5649980 A JP5649980 A JP 5649980A JP 5649980 A JP5649980 A JP 5649980A JP S55154479 A JPS55154479 A JP S55154479A
Authority
JP
Japan
Prior art keywords
transducers
subsequently
ultrasonic wave
thetam
clock
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
JP5649980A
Other languages
Japanese (ja)
Other versions
JPS6218020B2 (en
Inventor
Kinya Takamizawa
Einoshin Itamura
Kazuhiro Iinuma
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5649980A priority Critical patent/JPS55154479A/en
Publication of JPS55154479A publication Critical patent/JPS55154479A/en
Publication of JPS6218020B2 publication Critical patent/JPS6218020B2/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
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52046—Techniques for image enhancement involving transmitter or receiver
    • G01S7/52047—Techniques for image enhancement involving transmitter or receiver for elimination of side lobes or of grating lobes; for increasing resolving power

Landscapes

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

Abstract

PURPOSE:To make possible the fine scanning of less than the pitch between the electro-acoustic transducers with simple constitution by subsequently energizing the specified number within the plural electro-acoustic transducers to respectively relatively delay the energizing inputs and subsequently changing the relative delay time differences with time. CONSTITUTION:The switches S1... selected by a transducer selecting circuit E in synchronization with the clock from a clock pulse generator C are closed and the transducers T1-T5, T2-T6..., etc. in the transducers T1...TN are subsequently energized. The pulses synchronized with the clock pulses from the pulse generators P are applied to the transducers T1-T5, T2-T6... selected with relative delays by variable delay circuits D1-D5. As a result of this, the ultrasonic wave pulses A1, A2... of the specified deflection angles thetaM are subsequently generated equivalently from the transducers T3, T4.... When the delay time of the circuits D1... is changed in the same manner, the deflection angles thetaM changes to thetaM-1..., thus the ultrasonic wave scanning is accomplished at the intervals smaller than the pitch of the transducers T1... and the improvement in the resolution may be achieved with the simple constitution.
JP5649980A 1980-04-28 1980-04-28 Ultrasonic wave transmission-reception apparatus Granted JPS55154479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5649980A JPS55154479A (en) 1980-04-28 1980-04-28 Ultrasonic wave transmission-reception apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5649980A JPS55154479A (en) 1980-04-28 1980-04-28 Ultrasonic wave transmission-reception apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50050350A Division JPS51124915A (en) 1975-04-25 1975-04-25 Ultrasonic wave transmit-receive wave device

Publications (2)

Publication Number Publication Date
JPS55154479A true JPS55154479A (en) 1980-12-02
JPS6218020B2 JPS6218020B2 (en) 1987-04-21

Family

ID=13028789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5649980A Granted JPS55154479A (en) 1980-04-28 1980-04-28 Ultrasonic wave transmission-reception apparatus

Country Status (1)

Country Link
JP (1) JPS55154479A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731539A (en) * 1993-07-19 1995-02-03 Kiriyama Kogyo Kk Heating device for cooking pot

Also Published As

Publication number Publication date
JPS6218020B2 (en) 1987-04-21

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