JPH0189384U - - Google Patents
Info
- Publication number
- JPH0189384U JPH0189384U JP18424787U JP18424787U JPH0189384U JP H0189384 U JPH0189384 U JP H0189384U JP 18424787 U JP18424787 U JP 18424787U JP 18424787 U JP18424787 U JP 18424787U JP H0189384 U JPH0189384 U JP H0189384U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- receiving element
- clock pulse
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案による光学式センサーの一実施
例における回路図である。第２図は従来の光学式
センサーの一例を示すブロツク図である。
１０…光学式センサー；１１…ドライバー；１
２…発光素子；１３…受光素子；１４…アンプ；
１５…サンプル・ホールド素子；１６…コンパレ
ータ；１７…Ｄ形フリツプフロツプ；１８…イン
ターフエース；１９…クロツクパルス発生回路；
２０…インバータ。
FIG. 1 is a circuit diagram of an embodiment of an optical sensor according to the present invention. FIG. 2 is a block diagram showing an example of a conventional optical sensor. 10...Optical sensor; 11...Driver; 1
2... Light emitting element; 13... Light receiving element; 14... Amplifier;
15... Sample and hold element; 16... Comparator; 17... D-type flip-flop; 18... Interface; 19... Clock pulse generation circuit;
20...Inverter.
Claims (1)
と、該発光素子からの光を受光する受光素子と、
該受光素子の出力信号がアンプを介して入力され
且つ上記クロツクパルスによりサンプリング動作
及びホールド動作を繰り返すサンプル・ホールド
素子と、該サンプル・ホールド素子からの信号と
上記アンプの出力信号とを比較するコンパレータ
と、該コンパレータの出力及び上記クロツクパル
スが入力されるフリツプフロツプとを含んでおり
、発光素子の点灯時と消灯時における受光素子の
出力電圧をコンパレータにより比較して、点灯時
の受光素子の出力電圧が高い場合にフリツプフロ
ツプが信号を出力するようにしたことを特徴とす
る光学式センサー。 a light-emitting element that is blinked by a clock pulse; a light-receiving element that receives light from the light-emitting element;
a sample-and-hold element to which the output signal of the light-receiving element is input via an amplifier and repeats sampling and holding operations in response to the clock pulse; and a comparator for comparing the signal from the sample-and-hold element with the output signal of the amplifier. , a flip-flop to which the output of the comparator and the clock pulse are input, and the comparator compares the output voltage of the light receiving element when the light emitting element is on and when the light is off, and determines that the output voltage of the light receiving element when the light emitting element is on is higher. An optical sensor characterized in that a flip-flop outputs a signal when
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18424787U JPH0189384U (en) | 1987-12-02 | 1987-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18424787U JPH0189384U (en) | 1987-12-02 | 1987-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0189384U true JPH0189384U (en) | 1989-06-13 |
Family
ID=31475620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18424787U Pending JPH0189384U (en) | 1987-12-02 | 1987-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0189384U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59204785A (en) * | 1983-05-09 | 1984-11-20 | Kawasaki Heavy Ind Ltd | Optical detection |
-
1987
- 1987-12-02 JP JP18424787U patent/JPH0189384U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59204785A (en) * | 1983-05-09 | 1984-11-20 | Kawasaki Heavy Ind Ltd | Optical detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0189384U (en) | ||
| JPS62116260U (en) | ||
| JPS60129615U (en) | Photoelectric detection device | |
| JPS63130830U (en) | ||
| JPH01147533U (en) | ||
| JPS59161740U (en) | photoelectric switch | |
| JPS60167358U (en) | Semiconductor laser drive circuit | |
| JPS63141434U (en) | ||
| JPS63184459U (en) | ||
| JPH0268537U (en) | ||
| JPS628663U (en) | ||
| JPH0211600U (en) | ||
| JPH0260925U (en) | ||
| JPS59147293U (en) | temperature transmitter | |
| JPS6257447U (en) | ||
| JPS6057248U (en) | Light receiving circuit for optical cable link | |
| JPH0392827U (en) | ||
| JPS61181381U (en) | ||
| JPS601043U (en) | photoelectric switch | |
| JPS6411536U (en) | ||
| JPS61131145U (en) | ||
| JPS63164820U (en) | ||
| JPS59164336U (en) | photoelectric switch | |
| JPS5866459U (en) | optical detection device | |
| JPH0466598U (en) |