JPS56111480A - Measuring device for motion speed - Google Patents

Measuring device for motion speed

Info

Publication number
JPS56111480A
JPS56111480A JP1526980A JP1526980A JPS56111480A JP S56111480 A JPS56111480 A JP S56111480A JP 1526980 A JP1526980 A JP 1526980A JP 1526980 A JP1526980 A JP 1526980A JP S56111480 A JPS56111480 A JP S56111480A
Authority
JP
Japan
Prior art keywords
ultrasonic
wave
vibrators
kinds
reflected
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
JP1526980A
Other languages
Japanese (ja)
Inventor
Hirohide Miwa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1526980A priority Critical patent/JPS56111480A/en
Publication of JPS56111480A publication Critical patent/JPS56111480A/en
Pending 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To measure the speed component, etc., of a three-dimensional body accurately by irradiating the body with three or more kinds of ultrasonic-wave beams differring in quality in different directions so that they will pass through one part of the body at the same time, and then by performing arithmetic by discriminating respective reflected beams. CONSTITUTION:For example, ultrasonic-wave vibrators 11-13 are three different vibrators and opposed to one blood-flowing part P in the viscera. Ultrasonic-wave pulses emitted from vibrators 11-13 have respective delay times controlled to pass through point P at the same time. Respective ultrasonic-wave beams reflected at measurement point P are converted by ultrasonic-wave vibrators 11-13 into electric signals, which are transmitted to discriminating filter 30 via amplifier 20 to be separated by three filters into three kinds of electric signals corresponding to three kinds of ultrasonic waves. Respective separated signals are passed through gate circuit 40 to extract only reflected signals, which are passed through Doppler shift detecting circuit 60 to detect their frequency shift quantities, and then they are sent to speed arithmetic circuit 70 to calculate respective motion speed components. Thus, the accurate measurement can be performed.
JP1526980A 1980-02-08 1980-02-08 Measuring device for motion speed Pending JPS56111480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1526980A JPS56111480A (en) 1980-02-08 1980-02-08 Measuring device for motion speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1526980A JPS56111480A (en) 1980-02-08 1980-02-08 Measuring device for motion speed

Publications (1)

Publication Number Publication Date
JPS56111480A true JPS56111480A (en) 1981-09-03

Family

ID=11884133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1526980A Pending JPS56111480A (en) 1980-02-08 1980-02-08 Measuring device for motion speed

Country Status (1)

Country Link
JP (1) JPS56111480A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116005U (en) * 1983-01-28 1984-08-06 株式会社島津製作所 Ultrasonic Doppler device
JPS6021743A (en) * 1983-07-15 1985-02-04 富士通株式会社 Ultrasonic pulse doppler blood meter
JPS60129678A (en) * 1983-12-19 1985-07-10 Tokyo Electric Power Co Inc:The Sodar apparatus
JPS61146238A (en) * 1984-12-19 1986-07-03 株式会社日立メディコ Ultrasonic doppler apparatus
JPH01172633A (en) * 1987-12-26 1989-07-07 Koyo Seiko Co Ltd Lubricating device for roller bearing
JPH01204653A (en) * 1988-02-08 1989-08-17 Aloka Co Ltd Ultrasonic doppler device
JPH02105178U (en) * 1989-02-08 1990-08-21
JPH04126137A (en) * 1990-09-17 1992-04-27 Aloka Co Ltd Ultrasonic doppler diagnostic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228371A (en) * 1975-08-28 1977-03-03 Marine Instr Co Ltd Acoustic wave searching system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228371A (en) * 1975-08-28 1977-03-03 Marine Instr Co Ltd Acoustic wave searching system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116005U (en) * 1983-01-28 1984-08-06 株式会社島津製作所 Ultrasonic Doppler device
JPS6021743A (en) * 1983-07-15 1985-02-04 富士通株式会社 Ultrasonic pulse doppler blood meter
JPS60129678A (en) * 1983-12-19 1985-07-10 Tokyo Electric Power Co Inc:The Sodar apparatus
JPS61146238A (en) * 1984-12-19 1986-07-03 株式会社日立メディコ Ultrasonic doppler apparatus
JPH01172633A (en) * 1987-12-26 1989-07-07 Koyo Seiko Co Ltd Lubricating device for roller bearing
JPH01204653A (en) * 1988-02-08 1989-08-17 Aloka Co Ltd Ultrasonic doppler device
JPH02105178U (en) * 1989-02-08 1990-08-21
JPH04126137A (en) * 1990-09-17 1992-04-27 Aloka Co Ltd Ultrasonic doppler diagnostic device

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