JPS6234389U - - Google Patents
Info
- Publication number
- JPS6234389U JPS6234389U JP12481085U JP12481085U JPS6234389U JP S6234389 U JPS6234389 U JP S6234389U JP 12481085 U JP12481085 U JP 12481085U JP 12481085 U JP12481085 U JP 12481085U JP S6234389 U JPS6234389 U JP S6234389U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- distance
- transducer
- transmitting
- time interval
- 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 3
- 230000005540 biological transmission Effects 0.000 description 2
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第1図はこの考案の一実施例の構成を示すブロ
ツク図、第2図は従来の超音波測距装置の構成を
示すブロツク図であり、第3図イ〜ヘは同装置の
各部の信号を示すタイミングチヤート、第4図イ
及びロは同装置における送受信トランスデユーサ
の指向性と測定可能な範囲との関係を示す図であ
る。
6a……遠距離用の送信トランスデユーサ、6
b……近距離用の送信トランスデユーサ、7a…
…遠距離用の受信トランスデユーサ、7b……近
距離用の受信トランスデユーサ、10……フリツ
プフロツプ回路、21……送信トランスデユーサ
切換回路、22……受信トランスデユーサ切換回
路、23……パルス幅判別回路。
Fig. 1 is a block diagram showing the structure of an embodiment of this invention, Fig. 2 is a block diagram showing the structure of a conventional ultrasonic distance measuring device, and Fig. 3 A to F show signals of each part of the device. 4A and 4B are diagrams showing the relationship between the directivity of the transmitting/receiving transducer and the measurable range in the same device. 6a... long-distance transmission transducer, 6
b... Short distance transmission transducer, 7a...
...Receiving transducer for long distance, 7b...Receiving transducer for short distance, 10...Flip-flop circuit, 21...Transmitting transducer switching circuit, 22...Receiving transducer switching circuit, 23... ...Pulse width discrimination circuit.
Claims (1)
を発射してから、その超音波の反射波が受信用超
音波トランスデユーサによつて検出されるまでの
時間間隔を計測することにより目標物体までの距
離を測定する超音波測距装置において、狭い指向
性を有する遠距離用の送信及び受信用超音波トラ
ンスデユーサと、広い指向性を有する近距離用の
送信及び受信用超音波トランスデユーサと、前記
時間間隔が所定間隔以上の場合は前記遠距離用の
送信及び受信用超音波トランスデユーサを選択し
、前記時間間隔が所定間隔以下の場合は前記近距
離用の送信及び受信用超音波トランスデユーサを
選択する切換手段とを具備することを特徴とする
超音波測距装置。 By measuring the time interval from when an ultrasonic wave is emitted by a transmitting ultrasonic transducer until the reflected wave of the ultrasonic wave is detected by a receiving ultrasonic transducer, it is possible to reach the target object. In an ultrasonic distance measuring device that measures the distance of If the time interval is a predetermined interval or more, the long-distance transmitting and receiving ultrasonic transducer is selected, and if the time interval is less than a predetermined interval, the short-distance transmitting and receiving ultrasonic transducer is selected. 1. An ultrasonic ranging device comprising: switching means for selecting a sonic transducer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12481085U JPS6234389U (en) | 1985-08-14 | 1985-08-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12481085U JPS6234389U (en) | 1985-08-14 | 1985-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6234389U true JPS6234389U (en) | 1987-02-28 |
Family
ID=31017170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12481085U Pending JPS6234389U (en) | 1985-08-14 | 1985-08-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6234389U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010525321A (en) * | 2007-04-20 | 2010-07-22 | ティーエスディー インテグレイテッド コントロールズ,エルエルシー | Method and apparatus for ultrasonic sensing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5826682B2 (en) * | 1976-03-17 | 1983-06-04 | 松下電器産業株式会社 | amplifier |
JPS5935167A (en) * | 1982-08-23 | 1984-02-25 | Mitsubishi Electric Corp | Apparatus for detecting obstacle |
-
1985
- 1985-08-14 JP JP12481085U patent/JPS6234389U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5826682B2 (en) * | 1976-03-17 | 1983-06-04 | 松下電器産業株式会社 | amplifier |
JPS5935167A (en) * | 1982-08-23 | 1984-02-25 | Mitsubishi Electric Corp | Apparatus for detecting obstacle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010525321A (en) * | 2007-04-20 | 2010-07-22 | ティーエスディー インテグレイテッド コントロールズ,エルエルシー | Method and apparatus for ultrasonic sensing |
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