JPS61100045U - - Google Patents
Info
- Publication number
- JPS61100045U JPS61100045U JP18501184U JP18501184U JPS61100045U JP S61100045 U JPS61100045 U JP S61100045U JP 18501184 U JP18501184 U JP 18501184U JP 18501184 U JP18501184 U JP 18501184U JP S61100045 U JPS61100045 U JP S61100045U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- signal
- output
- reference voltage
- detector
- 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 5
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Numerical Control (AREA)
- Electronic Switches (AREA)
Description
第１図はこの考案の検出装置の一実施例を示す
構成図、第２図はその検知器の出力側の電圧とコ
ンパレータの基準電圧との関係を示す図、第３図
は従来の検出装置の構成を示す図である。
１…接触検知器、１０…抵抗、１１…センサユ
ニツト、１５ａ…第１コンパレータ、１５ｂ…第
２コンパレータ、１６ａ，１６ｂ…可変抵抗、１
７…アンド回路、１８…リレー。
Fig. 1 is a block diagram showing an embodiment of the detection device of this invention, Fig. 2 is a diagram showing the relationship between the voltage on the output side of the detector and the reference voltage of the comparator, and Fig. 3 is a diagram showing the conventional detection device. FIG. DESCRIPTION OF SYMBOLS 1... Contact detector, 10... Resistor, 11... Sensor unit, 15a... First comparator, 15b... Second comparator, 16a, 16b... Variable resistor, 1
7...AND circuit, 18...Relay.
Claims (1)
に接続された抵抗と、上記検知器および上記抵抗
と直列に接続された接地抵抗との間に得られる信
号の電圧をこの信号の電圧より高い第１基準電圧
と比較して上記信号の電圧がこの第１基準電圧よ
り高いとき出力する第１コンパレータと、上記信
号の電圧をこの信号の電圧より低い第２基準電圧
と比較して上記信号の電圧がこの第２基準電圧よ
り低いときに出力する第２コンパレータと、上記
第１、第２コンパレータの出力側に接続されたア
ンド回路とを具備することを特徴とする検出装置
。 (2) 第１、第２コンパレータは通常アンド回路
にＴＴＬ出力のハイレベルを出力し、第１コンパ
レータは検知器およびこの検知器と並列に接続さ
れた抵抗と直列に接続された接地抵抗との間に得
られる信号の電圧が第１基準電圧より高いときに
上記アンド回路にローレベルを出力し、第２コン
パレータは上記信号の電圧が第２基準電圧より低
いときに上記アンド回路にローレベルを出力する
ことを特徴とする実用新案登録請求の範囲第１項
記載の検出装置。[Claims for Utility Model Registration] (1) Between a pressurized conductive detector, a resistor connected in parallel with the detector, and a grounding resistor connected in series with the detector and the resistor. a first comparator that compares the voltage of the obtained signal with a first reference voltage higher than the voltage of the signal and outputs an output when the voltage of the signal is higher than the first reference voltage; A second comparator that outputs an output when the voltage of the signal is lower than the second reference voltage compared to a lower second reference voltage, and an AND circuit connected to the output sides of the first and second comparators. A detection device characterized by: (2) The first and second comparators normally output a high level TTL output to the AND circuit, and the first comparator is connected to the detector, the resistor connected in parallel with the detector, and the ground resistor connected in series. The second comparator outputs a low level to the AND circuit when the voltage of the signal obtained between the two is higher than the first reference voltage, and the second comparator outputs a low level to the AND circuit when the voltage of the signal is lower than the second reference voltage. The detection device according to claim 1 of the utility model registration claim, characterized in that the detection device outputs an output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18501184U JPS61100045U (en) | 1984-12-07 | 1984-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18501184U JPS61100045U (en) | 1984-12-07 | 1984-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61100045U true JPS61100045U (en) | 1986-06-26 |
Family
ID=30742493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18501184U Pending JPS61100045U (en) | 1984-12-07 | 1984-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61100045U (en) |
-
1984
- 1984-12-07 JP JP18501184U patent/JPS61100045U/ja active Pending