JPH0247590U - - Google Patents
Info
- Publication number
- JPH0247590U JPH0247590U JP12650688U JP12650688U JPH0247590U JP H0247590 U JPH0247590 U JP H0247590U JP 12650688 U JP12650688 U JP 12650688U JP 12650688 U JP12650688 U JP 12650688U JP H0247590 U JPH0247590 U JP H0247590U
- Authority
- JP
- Japan
- Prior art keywords
- room
- output
- threshold value
- signal
- frequency shift
- 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 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12650688U JPH0247590U (no) | 1988-09-27 | 1988-09-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12650688U JPH0247590U (no) | 1988-09-27 | 1988-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0247590U true JPH0247590U (no) | 1990-03-30 |
Family
ID=31378089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12650688U Pending JPH0247590U (no) | 1988-09-27 | 1988-09-27 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0247590U (no) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4842187A (no) * | 1971-10-08 | 1973-06-19 | ||
JPS59202083A (ja) * | 1983-04-30 | 1984-11-15 | Nippon Arefu:Kk | 超音波警報装置 |
JPS61246686A (ja) * | 1985-04-24 | 1986-11-01 | Matsushita Electric Works Ltd | 移動物体検知装置 |
-
1988
- 1988-09-27 JP JP12650688U patent/JPH0247590U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4842187A (no) * | 1971-10-08 | 1973-06-19 | ||
JPS59202083A (ja) * | 1983-04-30 | 1984-11-15 | Nippon Arefu:Kk | 超音波警報装置 |
JPS61246686A (ja) * | 1985-04-24 | 1986-11-01 | Matsushita Electric Works Ltd | 移動物体検知装置 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0247590U (no) | ||
JPH0412835B2 (no) | ||
JPH0483190A (ja) | 超音波センサ | |
JPH0351390U (no) | ||
JPH0449890U (no) | ||
JPS63168877U (no) | ||
JPH0288808U (no) | ||
JP2807120B2 (ja) | 超音波センサ | |
JPS6362485U (no) | ||
JP2953181B2 (ja) | 超音波センサ | |
JPH0457779U (no) | ||
JPH01156635U (no) | ||
JPH0320789Y2 (no) | ||
JPH0339190U (no) | ||
JP3057395B2 (ja) | 超音波を利用した侵入物体検知方法及び侵入物体検知機能を有した超音波センサ | |
JPS638686U (no) | ||
JPS63283U (no) | ||
JP2964111B2 (ja) | 侵入物体検知機能を有した超音波センサ | |
JPH0243034U (no) | ||
JPH0243674U (no) | ||
JPH0483189A (ja) | 超音波センサ | |
JPS5932976U (ja) | 超音波物体検出装置のセルフチエツク装置 | |
JPH01173659U (no) | ||
JPS58100763A (ja) | 超音波スイツチ | |
JPS6321882U (no) |