JPH0226825B2 - - Google Patents
Info
- Publication number
- JPH0226825B2 JPH0226825B2 JP11340981A JP11340981A JPH0226825B2 JP H0226825 B2 JPH0226825 B2 JP H0226825B2 JP 11340981 A JP11340981 A JP 11340981A JP 11340981 A JP11340981 A JP 11340981A JP H0226825 B2 JPH0226825 B2 JP H0226825B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- capacitor
- oscillator
- resonant circuit
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 25
- 238000013459 approach Methods 0.000 claims description 12
- 230000010355 oscillation Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Electronic Switches (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11340981A JPS5816421A (ja) | 1981-07-20 | 1981-07-20 | 扉開閉スイツチ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11340981A JPS5816421A (ja) | 1981-07-20 | 1981-07-20 | 扉開閉スイツチ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816421A JPS5816421A (ja) | 1983-01-31 |
| JPH0226825B2 true JPH0226825B2 (enrdf_load_stackoverflow) | 1990-06-13 |
Family
ID=14611539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11340981A Granted JPS5816421A (ja) | 1981-07-20 | 1981-07-20 | 扉開閉スイツチ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816421A (enrdf_load_stackoverflow) |
-
1981
- 1981-07-20 JP JP11340981A patent/JPS5816421A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816421A (ja) | 1983-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2561040B2 (ja) | 容量型センサの容量変化検出回路およびその検出方法 | |
| US4753323A (en) | Safety system for closing doors | |
| US9689907B2 (en) | Device for measuring the variation of a capacitance and associated measuring method | |
| CN107112990A (zh) | 电容传感器 | |
| US6337602B2 (en) | Method and apparatus for active isolation in inductive loop detectors | |
| JPH06101052B2 (ja) | 硬貨識別装置 | |
| US4786863A (en) | Solid state watthour meter with switched-capacitor integration | |
| KR930005375A (ko) | 위상 검출기 | |
| US3651452A (en) | Fixed-frequency vehicle detector | |
| JP3163712B2 (ja) | インバータ装置 | |
| US4792764A (en) | Noncontact electronic switching arrangement | |
| JPH0226825B2 (enrdf_load_stackoverflow) | ||
| JP3212721B2 (ja) | 積分効果を有する位相判別整流器構成及びそれを利用した電圧制御発振器を有するpll | |
| US3493954A (en) | Object detection system | |
| JPH039649B2 (enrdf_load_stackoverflow) | ||
| US5128634A (en) | Oscillator cirucit independent or parasitic capacitors | |
| JPH0633484Y2 (ja) | トナ−濃度検出装置 | |
| JP3640321B2 (ja) | 磁気的検知装置 | |
| SU1500751A1 (ru) | Элektpohhый зamok | |
| JPH02119314A (ja) | ゼロクロス電圧検出装置 | |
| JPS622276B2 (enrdf_load_stackoverflow) | ||
| JPH0328574Y2 (enrdf_load_stackoverflow) | ||
| JPH06338832A (ja) | ループコイル式感知器 | |
| JP2018006945A (ja) | 静電容量センサ | |
| JP3256809B2 (ja) | 近接スイッチ装置 |