JPS6325396U - - Google Patents
Info
- Publication number
- JPS6325396U JPS6325396U JP11809686U JP11809686U JPS6325396U JP S6325396 U JPS6325396 U JP S6325396U JP 11809686 U JP11809686 U JP 11809686U JP 11809686 U JP11809686 U JP 11809686U JP S6325396 U JPS6325396 U JP S6325396U
- Authority
- JP
- Japan
- Prior art keywords
- detection plate
- ultrasonic
- vibration
- converts
- signal
- 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 11
- 230000005611 electricity Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
- Window Of Vehicle (AREA)
Description
第１図はこの考案に係る接触検出装置の第１実
施例のブロツクダイアグラム、第２図は第２実施
例のブロツクダイアグラムである。又、第３図は
この考案に係る接触検出装置を自動車のパワーウ
インドーに適用した適用例のブロツクダイアグラ
ムである。
１……検知板、２……超音波振動子、３……超
音波受動子、４……超音波発振器、５……増巾器
、６……フイルター、７……整流器、８……コン
デンサー、９……コンパレーター、１０……パル
ス発生器、１１……パワーウインドモーター、１
２……リレー、１３……トランジスタ、１４……
制御スイツチ、１５……パワーウインドモーター
、１６……リミツトスイツチ、１７……リミツト
スイツチ、１８……リレー接点、１９……整流回
路、２０……ウインドガラス。
FIG. 1 is a block diagram of a first embodiment of a contact detection device according to this invention, and FIG. 2 is a block diagram of a second embodiment. FIG. 3 is a block diagram of an example in which the contact detection device according to the invention is applied to a power window of an automobile. 1... Detection plate, 2... Ultrasonic transducer, 3... Ultrasonic passive element, 4... Ultrasonic oscillator, 5... Amplifier, 6... Filter, 7... Rectifier, 8... Capacitor , 9... Comparator, 10... Pulse generator, 11... Power window motor, 1
2... Relay, 13... Transistor, 14...
Control switch, 15... Power window motor, 16... Limit switch, 17... Limit switch, 18... Relay contact, 19... Rectifier circuit, 20... Wind glass.
Claims (1)
振動数に適合する超音波周波数を発振する超音波
発振器と、前記検知板に取付けられ、前記超音波
発振器から供給される電気的振動信号により振動
し、前記検知板を振動させる超音波振動子と、同
じく前記検知板に取付けられ、検知板の振動を電
気的振動信号に変換する超音波受動子と、前記超
音波受動子の検知した電気的振動信号を増巾させ
る増巾器と、振動周波数信号のみを抽出し、ノイ
ズを除去するフイルターと、振動周波数信号を振
巾に比例した直流電圧に変換する整流回路と、前
記整流回路で整流された直流電圧とあらかじめ設
定された基準電圧とを比較し、検知板への異物接
触の有無を判定し、出力するコンパレーター、と
からなることを特徴とする接触検出装置。 A detection plate capable of ultrasonic vibration, an ultrasonic oscillator that oscillates an ultrasonic frequency matching the natural frequency of the detection plate, and an electric vibration signal attached to the detection plate and supplied from the ultrasonic oscillator. an ultrasonic transducer that vibrates and causes the detection plate to vibrate; an ultrasonic passive element that is also attached to the detection plate and converts the vibration of the detection plate into an electrical vibration signal; and electricity detected by the ultrasonic passive element. a filter that extracts only the vibration frequency signal and removes noise; a rectifier circuit that converts the vibration frequency signal into a DC voltage proportional to the amplitude; and a rectifier circuit that converts the vibration frequency signal into a DC voltage proportional to the amplitude. A contact detection device comprising: a comparator that compares the DC voltage detected with a preset reference voltage, determines whether or not a foreign object has touched the detection plate, and outputs an output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11809686U JPS6325396U (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11809686U JPS6325396U (en) | 1986-07-31 | 1986-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6325396U true JPS6325396U (en) | 1988-02-19 |
Family
ID=31004225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11809686U Pending JPS6325396U (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6325396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007204005A (en) * | 2006-02-06 | 2007-08-16 | Toyota Motor Corp | Steering device |
-
1986
- 1986-07-31 JP JP11809686U patent/JPS6325396U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007204005A (en) * | 2006-02-06 | 2007-08-16 | Toyota Motor Corp | Steering device |
| JP4670667B2 (en) * | 2006-02-06 | 2011-04-13 | トヨタ自動車株式会社 | Steering device |
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