JPS6468238A - Ultrasonic diagnostic apparatus - Google Patents

Ultrasonic diagnostic apparatus

Info

Publication number
JPS6468238A
JPS6468238A JP62225317A JP22531787A JPS6468238A JP S6468238 A JPS6468238 A JP S6468238A JP 62225317 A JP62225317 A JP 62225317A JP 22531787 A JP22531787 A JP 22531787A JP S6468238 A JPS6468238 A JP S6468238A
Authority
JP
Japan
Prior art keywords
annular array
amplitude
vibrators
vibrator
outside
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
JP62225317A
Other languages
Japanese (ja)
Other versions
JP2633576B2 (en
Inventor
Isao Uchiumi
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
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 filed Critical Toshiba Corp
Priority to JP62225317A priority Critical patent/JP2633576B2/en
Publication of JPS6468238A publication Critical patent/JPS6468238A/en
Application granted granted Critical
Publication of JP2633576B2 publication Critical patent/JP2633576B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To enhance resolving power in scanning and slice directions, by performing weighting increasing the amplitude of a transmitting and/receiving signal toward an outside element to each element of an annular array vibrator. CONSTITUTION:Pulsers 3a-3d form high voltage pulses from a timing pulse generating circuit 1 to drive annular array vibrators 4. At this time, weighting is applied to the vibrators 4 by an amplitude control circuit 5 so that the amplitude of the high voltage pulse becomes higher toward the outside vibrator. At the time of reception, the receiving signals received by the annular array vibrators 4 are added by an adder circuit 8 through preamplifiers 6a-6d and delay circuits 7a-7d. An mu-factor control circuit 10 performs weighting so that sensitivity becomes higher toward the receiving signal of the outside vibrator.
JP62225317A 1987-09-10 1987-09-10 Ultrasound diagnostic equipment Expired - Fee Related JP2633576B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62225317A JP2633576B2 (en) 1987-09-10 1987-09-10 Ultrasound diagnostic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62225317A JP2633576B2 (en) 1987-09-10 1987-09-10 Ultrasound diagnostic equipment

Publications (2)

Publication Number Publication Date
JPS6468238A true JPS6468238A (en) 1989-03-14
JP2633576B2 JP2633576B2 (en) 1997-07-23

Family

ID=16827461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62225317A Expired - Fee Related JP2633576B2 (en) 1987-09-10 1987-09-10 Ultrasound diagnostic equipment

Country Status (1)

Country Link
JP (1) JP2633576B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011072721A (en) * 2009-10-01 2011-04-14 Canon Inc Measuring instrument

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657972A (en) * 1979-09-26 1981-05-20 Philips Nv Ultrasonic toner diagnosing apparatus
JPS58216044A (en) * 1982-06-11 1983-12-15 株式会社東芝 Ultrasonic diagnostic apparatus
JPS5985973A (en) * 1982-11-08 1984-05-18 Hitachi Medical Corp Multiring electronic focusing type ultrasonic apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657972A (en) * 1979-09-26 1981-05-20 Philips Nv Ultrasonic toner diagnosing apparatus
JPS58216044A (en) * 1982-06-11 1983-12-15 株式会社東芝 Ultrasonic diagnostic apparatus
JPS5985973A (en) * 1982-11-08 1984-05-18 Hitachi Medical Corp Multiring electronic focusing type ultrasonic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011072721A (en) * 2009-10-01 2011-04-14 Canon Inc Measuring instrument

Also Published As

Publication number Publication date
JP2633576B2 (en) 1997-07-23

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees