JPH01148876U - - Google Patents
Info
- Publication number
- JPH01148876U JPH01148876U JP4296088U JP4296088U JPH01148876U JP H01148876 U JPH01148876 U JP H01148876U JP 4296088 U JP4296088 U JP 4296088U JP 4296088 U JP4296088 U JP 4296088U JP H01148876 U JPH01148876 U JP H01148876U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic sensor
- detected object
- uneven portion
- ultrasonic
- uneven
- 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
Links
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図はこの考案における反射板を適用した超
音波センサーによる検出装置の一実施例を示す側
断面図、第２図は第１図における超音波の反射状
態を示す解析図、第３図は第１図において反射板
が傾いた状態の側断面図、第４図は第３図におけ
る超音波の反射状態を示す解析図、第５図および
第６図は従来の超音波センサーによる検出装置の
側断面図である。
１……超音波センサー、２……被検出物体、３
……反射板、４……凹凸部、５……頂部、６……
谷部。
Fig. 1 is a side cross-sectional view showing an embodiment of a detection device using an ultrasonic sensor using a reflector according to this invention, Fig. 2 is an analysis diagram showing the reflected state of ultrasonic waves in Fig. 1, and Fig. 3 is Fig. 1 is a side cross-sectional view with the reflector tilted, Fig. 4 is an analysis diagram showing the reflected state of the ultrasonic waves in Fig. 3, and Figs. 5 and 6 are of a detection device using a conventional ultrasonic sensor. FIG. 1... Ultrasonic sensor, 2... Object to be detected, 3
... Reflection plate, 4 ... Uneven part, 5 ... Top part, 6 ...
Tanibe.
Claims (1)
するものにおいて、上記被検出物体２に頂部５お
よび谷部６のなす角度がほぼ９０度の凹凸部４を
設けるとともに、この凹凸部の上記頂部５から上
記谷部６までの寸法を上記超音波センサー１によ
つて発生される超音波の波長に比し長く設定した
超音波センサー用反射板。 In a device for detecting a detected object 2 using an ultrasonic sensor 1, an uneven portion 4 having an angle of approximately 90 degrees formed by a peak portion 5 and a valley portion 6 is provided on the detected object 2, and the above-mentioned top portion of this uneven portion is provided. 5 to the trough 6 is set to be longer than the wavelength of the ultrasonic waves generated by the ultrasonic sensor 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4296088U JPH01148876U (en) | 1988-04-01 | 1988-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4296088U JPH01148876U (en) | 1988-04-01 | 1988-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01148876U true JPH01148876U (en) | 1989-10-16 |
Family
ID=31269362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4296088U Pending JPH01148876U (en) | 1988-04-01 | 1988-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01148876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950009280A (en) * | 1993-09-14 | 1995-04-21 | 프랭크 에이. 오울플링 | Proximity sensor using polymer piezoelectric film |
-
1988
- 1988-04-01 JP JP4296088U patent/JPH01148876U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950009280A (en) * | 1993-09-14 | 1995-04-21 | 프랭크 에이. 오울플링 | Proximity sensor using polymer piezoelectric film |