JPH0553379B2 - - Google Patents
Info
- Publication number
- JPH0553379B2 JPH0553379B2 JP21699987A JP21699987A JPH0553379B2 JP H0553379 B2 JPH0553379 B2 JP H0553379B2 JP 21699987 A JP21699987 A JP 21699987A JP 21699987 A JP21699987 A JP 21699987A JP H0553379 B2 JPH0553379 B2 JP H0553379B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- transducer
- ultrasonic
- curvature
- vibrator
- 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
- 239000012528 membrane Substances 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 238000013016 damping Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920005603 alternating copolymer Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- -1 cyanovinylidene Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21699987A JPS6459183A (en) | 1987-08-31 | 1987-08-31 | Transducer of ultrasonic range finder |
| US07/171,963 US4825116A (en) | 1987-05-07 | 1988-03-23 | Transmitter-receiver of ultrasonic distance measuring device |
| DE3815359A DE3815359A1 (de) | 1987-05-07 | 1988-05-05 | Sender/empfaenger eines ultraschall-entfernungsmessgeraetes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21699987A JPS6459183A (en) | 1987-08-31 | 1987-08-31 | Transducer of ultrasonic range finder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6459183A JPS6459183A (en) | 1989-03-06 |
| JPH0553379B2 true JPH0553379B2 (enrdf_load_html_response) | 1993-08-09 |
Family
ID=16697229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21699987A Granted JPS6459183A (en) | 1987-05-07 | 1987-08-31 | Transducer of ultrasonic range finder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6459183A (enrdf_load_html_response) |
-
1987
- 1987-08-31 JP JP21699987A patent/JPS6459183A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6459183A (en) | 1989-03-06 |