JPH01118373U - - Google Patents
Info
- Publication number
- JPH01118373U JPH01118373U JP1124388U JP1124388U JPH01118373U JP H01118373 U JPH01118373 U JP H01118373U JP 1124388 U JP1124388 U JP 1124388U JP 1124388 U JP1124388 U JP 1124388U JP H01118373 U JPH01118373 U JP H01118373U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- sensor
- applying means
- bias
- output voltage
- 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
- 230000003321 amplification Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第1図は本考案における一実施例を示す構成図
、第2図は同実施例の作用説明用のタイミングチ
ヤート、第3図は従来例の構成図である。
1……センサ、7……コンパレータ、8……非
反転増幅器、10……スイツチ回路、11……差
動増幅器。
FIG. 1 is a configuration diagram showing an embodiment of the present invention, FIG. 2 is a timing chart for explaining the operation of the same embodiment, and FIG. 3 is a configuration diagram of a conventional example. 1... Sensor, 7... Comparator, 8... Non-inverting amplifier, 10... Switch circuit, 11... Differential amplifier.
Claims (1)
圧としてセンサの交流出力電圧に印加する直流バ
イアス印加手段と、 前記直流バイアス印加手段の出力電圧と、この
出力電圧から直流成分を取り除いた電圧との差を
求めることにより前記直流バイアス印加手段の直
流出力電圧を取り出す差動増幅部と、 前記差動増幅部よつて取出される直流電圧と予
め定められた基準電圧とを比較し、この直流電圧
が基準電圧以下となつたときにセンサの断線を検
出する断線検出手段と、 を備えることを特徴とするセンサの断線検出回路
。[Claims for Utility Model Registration] DC bias applying means for amplifying a DC power supply voltage and applying it as a DC bias voltage to the AC output voltage of the sensor; an output voltage of the DC bias applying means; a differential amplification unit that extracts the DC output voltage of the DC bias applying means by calculating the difference between the voltage from which the component is removed, and a predetermined reference voltage and the DC voltage extracted by the differential amplification unit; A disconnection detection circuit for a sensor, comprising: disconnection detection means for detecting disconnection of the sensor when the DC voltage becomes equal to or lower than a reference voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1124388U JPH01118373U (en) | 1988-02-01 | 1988-02-01 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1124388U JPH01118373U (en) | 1988-02-01 | 1988-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01118373U true JPH01118373U (en) | 1989-08-10 |
Family
ID=31219624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1124388U Pending JPH01118373U (en) | 1988-02-01 | 1988-02-01 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01118373U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018054361A (en) * | 2016-09-27 | 2018-04-05 | 横河電機株式会社 | Measurement module |
-
1988
- 1988-02-01 JP JP1124388U patent/JPH01118373U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018054361A (en) * | 2016-09-27 | 2018-04-05 | 横河電機株式会社 | Measurement module |
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