JPH0425017B2 - - Google Patents
Info
- Publication number
- JPH0425017B2 JPH0425017B2 JP59256506A JP25650684A JPH0425017B2 JP H0425017 B2 JPH0425017 B2 JP H0425017B2 JP 59256506 A JP59256506 A JP 59256506A JP 25650684 A JP25650684 A JP 25650684A JP H0425017 B2 JPH0425017 B2 JP H0425017B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- frequencies
- signal
- reflected
- normalized
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 12
- 238000002592 echocardiography Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 12
- 238000002604 ultrasonography Methods 0.000 claims description 12
- 238000000691 measurement method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 230000010365 information processing Effects 0.000 claims description 2
- 238000010606 normalization Methods 0.000 claims 1
- 239000000523 sample Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003325 tomography Methods 0.000 description 3
- 230000000877 morphologic effect Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
-
- 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
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8952—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using discrete, multiple frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59256506A JPS61135640A (ja) | 1984-12-06 | 1984-12-06 | 超音波測定方法およびその装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59256506A JPS61135640A (ja) | 1984-12-06 | 1984-12-06 | 超音波測定方法およびその装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61135640A JPS61135640A (ja) | 1986-06-23 |
| JPH0425017B2 true JPH0425017B2 (zh) | 1992-04-28 |
Family
ID=17293577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59256506A Granted JPS61135640A (ja) | 1984-12-06 | 1984-12-06 | 超音波測定方法およびその装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61135640A (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741642B2 (ja) * | 1992-07-27 | 1995-05-10 | 東芝機械株式会社 | 成形金型 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58173539A (ja) * | 1982-04-07 | 1983-10-12 | 富士通株式会社 | 超音波による生体組織特性測定方法 |
-
1984
- 1984-12-06 JP JP59256506A patent/JPS61135640A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58173539A (ja) * | 1982-04-07 | 1983-10-12 | 富士通株式会社 | 超音波による生体組織特性測定方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61135640A (ja) | 1986-06-23 |
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