DE3475224D1 - Apparatus for observing sound field of ultrasonic wave - Google Patents

Apparatus for observing sound field of ultrasonic wave

Info

Publication number
DE3475224D1
DE3475224D1 DE8484306257T DE3475224T DE3475224D1 DE 3475224 D1 DE3475224 D1 DE 3475224D1 DE 8484306257 T DE8484306257 T DE 8484306257T DE 3475224 T DE3475224 T DE 3475224T DE 3475224 D1 DE3475224 D1 DE 3475224D1
Authority
DE
Germany
Prior art keywords
ultrasonic wave
sound field
observing sound
observing
field
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.)
Expired
Application number
DE8484306257T
Other languages
English (en)
Inventor
Takuso Sato
Nobuyuki Ichida
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
Application granted granted Critical
Publication of DE3475224D1 publication Critical patent/DE3475224D1/de
Expired 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
    • G01S7/52023—Details of receivers
    • G01S7/52036—Details of receivers using analysis of echo signal for target characterisation
    • G01S7/52038—Details of receivers using analysis of echo signal for target characterisation involving non-linear properties of the propagation medium or of the reflective target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means
    • G01H3/125—Amplitude; Power by electric means for representing acoustic field distribution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/024—Mixtures
    • G01N2291/02491—Materials with nonlinear acoustic properties
DE8484306257T 1983-09-13 1984-09-13 Apparatus for observing sound field of ultrasonic wave Expired DE3475224D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58168600A JPS6060838A (ja) 1983-09-13 1983-09-13 超音波音場観測装置

Publications (1)

Publication Number Publication Date
DE3475224D1 true DE3475224D1 (en) 1988-12-22

Family

ID=15871057

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484306257T Expired DE3475224D1 (en) 1983-09-13 1984-09-13 Apparatus for observing sound field of ultrasonic wave

Country Status (4)

Country Link
US (1) US4691569A (de)
EP (1) EP0136857B1 (de)
JP (1) JPS6060838A (de)
DE (1) DE3475224D1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6060838A (ja) * 1983-09-13 1985-04-08 富士通株式会社 超音波音場観測装置
JPS6379640A (ja) * 1986-09-22 1988-04-09 横河メディカルシステム株式会社 超音波診断装置
US6529809B1 (en) 1997-02-06 2003-03-04 Automotive Technologies International, Inc. Method of developing a system for identifying the presence and orientation of an object in a vehicle
US6445988B1 (en) 1997-02-06 2002-09-03 Automotive Technologies International Inc. System for determining the occupancy state of a seat in a vehicle and controlling a component based thereon
US6397136B1 (en) 1997-02-06 2002-05-28 Automotive Technologies International Inc. System for determining the occupancy state of a seat in a vehicle
SE503679C2 (sv) * 1994-11-18 1996-07-29 Lasse Karlsen Akustisk vindmätare
US6452870B1 (en) 1996-02-08 2002-09-17 Automotive Technologies International, Inc. Methods for controlling deployment of an occupant restraint in a vehicle and determining whether the occupant is a child seat
USRE37260E1 (en) 1996-02-08 2001-07-03 Automotive Technologies International Inc. Method for identifying the presence and orientation of an object in a vehicle
US6007095A (en) * 1997-02-05 1999-12-28 Automotive Systems Laboratory, Inc. Vehicle occupant position sensor
CN114098809A (zh) * 2021-11-29 2022-03-01 无锡海鹰电子医疗系统有限公司 一种超声诊断仪发射系统及其快速优化方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450225A (en) * 1968-06-07 1969-06-17 Pan American Petroleum Corp Elastic-wave holography
US4059010A (en) * 1973-10-01 1977-11-22 Sachs Thomas D Ultrasonic inspection and diagnosis system
US4099878A (en) * 1975-03-28 1978-07-11 Argosystems, Inc. Remote probing apparatus and method
FR2527339A1 (fr) * 1982-05-21 1983-11-25 Schlumberger Etienne Procede et installation pour analyser des discontinuites situees dans un milieu sensiblement homogene
JPS59164956A (ja) * 1983-03-10 1984-09-18 Fujitsu Ltd 超音波媒体の等価非線形パラメ−タ分布測定装置
JPS6053130A (ja) * 1983-08-31 1985-03-26 株式会社東芝 超音波診断装置
JPS6060838A (ja) * 1983-09-13 1985-04-08 富士通株式会社 超音波音場観測装置

Also Published As

Publication number Publication date
JPH0246214B2 (de) 1990-10-15
EP0136857A3 (en) 1986-04-23
EP0136857A2 (de) 1985-04-10
US4691569A (en) 1987-09-08
JPS6060838A (ja) 1985-04-08
EP0136857B1 (de) 1988-11-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee