JPS57121343A - Ultrasonic wave transmitting and receiving circuit - Google Patents

Ultrasonic wave transmitting and receiving circuit

Info

Publication number
JPS57121343A
JPS57121343A JP721081A JP721081A JPS57121343A JP S57121343 A JPS57121343 A JP S57121343A JP 721081 A JP721081 A JP 721081A JP 721081 A JP721081 A JP 721081A JP S57121343 A JPS57121343 A JP S57121343A
Authority
JP
Japan
Prior art keywords
frequency
ultrasonic
coil
coils
receiving circuit
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
JP721081A
Other languages
Japanese (ja)
Inventor
Mutsuo Hashiguchi
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 JP721081A priority Critical patent/JPS57121343A/en
Publication of JPS57121343A publication Critical patent/JPS57121343A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

PURPOSE:To remove restrictions due to the change of the resonance frequency of ultrasonic waves on materials of an oscillator, by switching the value of the coil in an ultrasonic wave transmitting and receiving circuit by a switch. CONSTITUTION:Two coils L1 and L2 are provided, and the coil L1 has the frequency coincident with a minimum one of used frequencies of an ultrasonic diagnostic device, and the coil L2 is connected in series to a switch SW for the purpose of making the frequency of the coil L1 coincident with another frequency, and parallel values of coils L1 and L2 coincide with another frequency. That is, the number of coils and switches is increased to correspond to many kinds of ultrasonic frequencies. Thus, in case the used frequency of the ultrasonic probe are different in diagnostic positions of a living body, the ultrasonic probe is prevented from having a large form and a complicated structure.
JP721081A 1981-01-22 1981-01-22 Ultrasonic wave transmitting and receiving circuit Pending JPS57121343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP721081A JPS57121343A (en) 1981-01-22 1981-01-22 Ultrasonic wave transmitting and receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP721081A JPS57121343A (en) 1981-01-22 1981-01-22 Ultrasonic wave transmitting and receiving circuit

Publications (1)

Publication Number Publication Date
JPS57121343A true JPS57121343A (en) 1982-07-28

Family

ID=11659635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP721081A Pending JPS57121343A (en) 1981-01-22 1981-01-22 Ultrasonic wave transmitting and receiving circuit

Country Status (1)

Country Link
JP (1) JPS57121343A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01113031A (en) * 1987-10-27 1989-05-01 Yokogawa Medical Syst Ltd Ultrasonic diagnostic apparatus
JPH02111351A (en) * 1988-10-21 1990-04-24 Aloka Co Ltd Transceiving circuit for ultrasonic diagnostic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01113031A (en) * 1987-10-27 1989-05-01 Yokogawa Medical Syst Ltd Ultrasonic diagnostic apparatus
JPH02111351A (en) * 1988-10-21 1990-04-24 Aloka Co Ltd Transceiving circuit for ultrasonic diagnostic device

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