JPS61132783U - - Google Patents
Info
- Publication number
- JPS61132783U JPS61132783U JP1619585U JP1619585U JPS61132783U JP S61132783 U JPS61132783 U JP S61132783U JP 1619585 U JP1619585 U JP 1619585U JP 1619585 U JP1619585 U JP 1619585U JP S61132783 U JPS61132783 U JP S61132783U
- Authority
- JP
- Japan
- Prior art keywords
- wave
- signal
- duration
- ultrasonic sensor
- noise
- 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
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図、第２図は第１図に示す一実施例のタイムチ
ヤート図、第３図は第１図における時間判断回路
のタイムチヤート図である。
１１……二値化回路、１２……ＡＮＤゲート、
１３……カウンタ、１４……時間判断回路。
Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a time chart of the embodiment shown in Fig. 1, and Fig. 3 is a time chart of the time judgment circuit in Fig. 1. be. 11...Binarization circuit, 12...AND gate,
13...Counter, 14...Time judgment circuit.
Claims (1)
の信号の継続時間を測定する手段と、この手段に
より測定された前記信号の継続時間が、予め設定
された設定時間以下であれば前記信号はノイズで
あるとして無視し、前記設定時間以上であれば反
射波であると判断する手段とを具備してなること
を特徴とする超音波センサのノイズ除去装置。 means for measuring the duration of the signal appearing on the receiving signal line of the ultrasonic sensor circuit; and if the duration of the signal measured by the means is less than or equal to a preset time, the signal is noise. 2. A noise removing device for an ultrasonic sensor, comprising: a means for ignoring the wave and determining that the wave is a reflected wave if it is longer than the set time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1619585U JPS61132783U (en) | 1985-02-07 | 1985-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1619585U JPS61132783U (en) | 1985-02-07 | 1985-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61132783U true JPS61132783U (en) | 1986-08-19 |
Family
ID=30502736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1619585U Pending JPS61132783U (en) | 1985-02-07 | 1985-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132783U (en) |
-
1985
- 1985-02-07 JP JP1619585U patent/JPS61132783U/ja active Pending