JPS6415986U - - Google Patents
Info
- Publication number
- JPS6415986U JPS6415986U JP10701687U JP10701687U JPS6415986U JP S6415986 U JPS6415986 U JP S6415986U JP 10701687 U JP10701687 U JP 10701687U JP 10701687 U JP10701687 U JP 10701687U JP S6415986 U JPS6415986 U JP S6415986U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- proximity switch
- receiver
- lens means
- acoustic lens
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は超音波近接スイツチのセンサの構成を
示す断面図、第２図は同センサの外観を示す斜視
図、第３図は超音波近接スイツチの電気的構成を
示すブロツク図、第４図は超音波の収束の様子を
示す説明図である。第５図は従来例を示すブロツ
ク図、第６図はその出力信号波形を示す波形図、
第７図は残響による問題点を説明するための波形
図、第８図は背後にある壁により生ずる問題点を
説明するための配置図、第９図はその波形図であ
る。
１…超音波センサ、２…超音波送波子、３…超
音波受波子、４ａ，４ｂ…音響整合層。
Fig. 1 is a sectional view showing the configuration of the sensor of the ultrasonic proximity switch, Fig. 2 is a perspective view showing the external appearance of the sensor, Fig. 3 is a block diagram showing the electrical configuration of the ultrasonic proximity switch, and Fig. 4. FIG. 2 is an explanatory diagram showing the state of convergence of ultrasonic waves. FIG. 5 is a block diagram showing a conventional example, and FIG. 6 is a waveform diagram showing its output signal waveform.
FIG. 7 is a waveform diagram for explaining the problem caused by reverberation, FIG. 8 is a layout diagram for explaining the problem caused by the wall behind, and FIG. 9 is the waveform diagram. DESCRIPTION OF SYMBOLS 1... Ultrasonic sensor, 2... Ultrasonic wave transmitter, 3... Ultrasonic wave receiver, 4a, 4b... Acoustic matching layer.
Claims (1)
え、送、受波子の少なくともいずれか一方に角板
状音響レンズ手段を設けるとともに、送、受波子
の音軸が所定距離のところで交差するように送、
受波子を配置した超音波近接スイツチ。 (2) 超音波送、受波子のそれぞれに一方向にの
み集束作用をもつ角板状音響レンズ手段を設け、
これらの収束方向が互いに直交するように配置し
た実用新案登録請求の範囲第(1)項に記載の超音
波近接スイツチ。 (3) 角板状音響レンズ手段が凹面をもつ音響整
合層である、実用新案登録請求の範囲第(1)項に
記載の超音波近接スイツチ。 (4) 角板状音響レンズ手段が凹面をもつ超音波
送波子または超音波受波子である、実用新案登録
請求の範囲第(1)項に記載の超音波近接スイツチ
。 (5) 超音波送、受波子が樹脂ケースに収められ
かつ送、受波子の間の位置において樹脂ケースに
スリツトが形成されている、実用新案登録請求の
範囲第(1)項に記載の超音波近接スイツチ。[Claims for Utility Model Registration] (1) An ultrasonic wave transmitter and an ultrasonic receiver are separately provided, and at least one of the transmitter and receiver is provided with a rectangular plate-shaped acoustic lens means, and Transmit so that the sound axes of the two intersect at a predetermined distance,
Ultrasonic proximity switch with a receiver placed. (2) Providing a rectangular plate-shaped acoustic lens means having a focusing action only in one direction on each of the ultrasonic transmitting and receiving elements,
The ultrasonic proximity switch according to claim (1) of the utility model registration, which is arranged so that these convergence directions are orthogonal to each other. (3) The ultrasonic proximity switch according to claim (1), wherein the square plate-shaped acoustic lens means is an acoustic matching layer having a concave surface. (4) The ultrasonic proximity switch according to claim (1), wherein the square plate-shaped acoustic lens means is an ultrasonic wave transmitter or an ultrasonic wave receiver having a concave surface. (5) Ultrasonic transmitting and receiving elements are housed in a resin case, and a slit is formed in the resin case at a position between the transmitting and receiving elements, as described in paragraph (1) of the scope of the utility model registration claim. Sonic proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10701687U JPH0533984Y2 (en) | 1987-07-14 | 1987-07-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10701687U JPH0533984Y2 (en) | 1987-07-14 | 1987-07-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6415986U true JPS6415986U (en) | 1989-01-26 |
| JPH0533984Y2 JPH0533984Y2 (en) | 1993-08-27 |
Family
ID=31341045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10701687U Expired - Lifetime JPH0533984Y2 (en) | 1987-07-14 | 1987-07-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0533984Y2 (en) |
-
1987
- 1987-07-14 JP JP10701687U patent/JPH0533984Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0533984Y2 (en) | 1993-08-27 |
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