JPS6323656U - - Google Patents
Info
- Publication number
- JPS6323656U JPS6323656U JP1986116699U JP11669986U JPS6323656U JP S6323656 U JPS6323656 U JP S6323656U JP 1986116699 U JP1986116699 U JP 1986116699U JP 11669986 U JP11669986 U JP 11669986U JP S6323656 U JPS6323656 U JP S6323656U
- Authority
- JP
- Japan
- Prior art keywords
- resistance sensor
- terminal voltage
- constant current
- coil type
- type indicator
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
- G01F23/246—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Description
第1図及び第2図はそれぞれ本考案に係る交叉
コイル式指示計器の故障検出回路の実施例を示す
回路図、第3図は従来の交叉コイル式指示計器を
示す回路図、第4図は第1図、第2図、及び第3
図における抵抗センサの抵抗値及び被測定量に対
する端子電圧の特性を示す図である。 1…定電流回路、2…故障検出制御回路、3…
インピーダンス変換回路、4…交叉コイル式指示
計器、5…指針、6…目盛板、Rs…抵抗センサ
、CP…コンパレータ、OP…オペアンプ。
コイル式指示計器の故障検出回路の実施例を示す
回路図、第3図は従来の交叉コイル式指示計器を
示す回路図、第4図は第1図、第2図、及び第3
図における抵抗センサの抵抗値及び被測定量に対
する端子電圧の特性を示す図である。 1…定電流回路、2…故障検出制御回路、3…
インピーダンス変換回路、4…交叉コイル式指示
計器、5…指針、6…目盛板、Rs…抵抗センサ
、CP…コンパレータ、OP…オペアンプ。
Claims (1)
- 【実用新案登録請求の範囲】 被測定量に応じて抵抗値が変化する抵抗センサ
と、該抵抗センサに定電流を供給する定電流回路
とを有し、前記定電流により生じた抵抗センサの
端子電圧値を指示する交叉コイル式指示計器にお
いて、 前記抵抗センサの端子電圧を検出する検出手段
と、 該検出手段の出力により動作し前記交叉コイル
式指示計器に対する端子電圧の供給を制御する制
御手段とを備え、 前記端子電圧が異状電圧のときに前記検出手段
がこれを検出して制御手段により前記交叉コイル
式指示計器に対する端子電圧の供給を遮断するよ
うにした、 ことを特徴とする故障検出回路。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986116699U JPH0355104Y2 (ja) | 1986-07-31 | 1986-07-31 | |
EP87111071A EP0255143A3 (en) | 1986-07-31 | 1987-07-30 | Trouble detecting circuit for resistive sensor type indicator |
US07/080,069 US4868508A (en) | 1986-07-31 | 1987-07-31 | Trouble detecting circuit for resistive sensor type indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986116699U JPH0355104Y2 (ja) | 1986-07-31 | 1986-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6323656U true JPS6323656U (ja) | 1988-02-16 |
JPH0355104Y2 JPH0355104Y2 (ja) | 1991-12-06 |
Family
ID=14693653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986116699U Expired JPH0355104Y2 (ja) | 1986-07-31 | 1986-07-31 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4868508A (ja) |
EP (1) | EP0255143A3 (ja) |
JP (1) | JPH0355104Y2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0820412B2 (ja) * | 1990-07-20 | 1996-03-04 | 松下電器産業株式会社 | 使い捨てセンサを用いた定量分析方法、及び装置 |
US5359290A (en) * | 1993-01-11 | 1994-10-25 | Actron Manufacturing Company | Method and apparatus using a pair of test circuits having LED indicators for testing engine sensors and ignition modules in vehicles |
US5394093A (en) * | 1993-04-30 | 1995-02-28 | Actron Manufacturing Company | Method and apparatus for testing vehicle engine sensors |
US5392643A (en) * | 1993-11-22 | 1995-02-28 | Chrysler Corporation | Oxygen heater sensor diagnostic routine |
US5483045A (en) * | 1994-06-09 | 1996-01-09 | Electric Power Research Institute | Microwave power system and method with exposure protection |
ATE256864T1 (de) * | 1996-10-29 | 2004-01-15 | Zellweger Analytics Ltd | Zustandsüberwachung eines gasdetektors |
JP4718150B2 (ja) * | 2003-10-29 | 2011-07-06 | カルソニックカンセイ株式会社 | 指示計器 |
DE102006016011A1 (de) * | 2006-04-05 | 2007-10-18 | Rolls-Royce Deutschland Ltd & Co Kg | Notabschaltdetektorvorrichtung für eine Gasturbine |
US9476928B2 (en) | 2009-04-28 | 2016-10-25 | Textron Innovations Inc. | System and method for detecting sensor leakage |
EP2425265B1 (en) * | 2009-04-28 | 2015-02-25 | Bell Helicopter Textron Inc. | System and method for detecting sensor leakage |
UY38041A (es) | 2017-12-29 | 2019-06-28 | Amgen Inc | Construcción de anticuerpo biespecífico dirigida a muc17 y cd3 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5393269U (ja) * | 1976-12-28 | 1978-07-29 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2558805A1 (de) * | 1975-12-27 | 1977-07-07 | Teves Gmbh Alfred | Einrichtung zur ueberwachung einer batteriespannung |
DE2612915C2 (de) * | 1976-03-26 | 1986-05-28 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und Vorrichtung einer unter der Führung einer λ-Sonde arbeitenden Regelung |
GB1599406A (en) * | 1977-08-11 | 1981-09-30 | Horstmann Gear Group Ltd | Gas detector with a failure sensor |
US4166243A (en) * | 1978-04-21 | 1979-08-28 | General Motors Corporation | Thermocouple failure detector |
US4203142A (en) * | 1978-07-31 | 1980-05-13 | Lee Donald E | Ground fault system and method of detection |
US4224606A (en) * | 1979-03-21 | 1980-09-23 | Honeywell Inc. | Fluid level detector test switch |
US4231025A (en) * | 1979-11-01 | 1980-10-28 | Metritape, Inc. | Level and temperature readout and alarm system |
US4525850A (en) * | 1982-09-15 | 1985-06-25 | Chrysler Corporation | Fluid level sensor employing hot wire probe and digital sample and hold circuitry |
US4622844A (en) * | 1985-04-22 | 1986-11-18 | Allied Corporation | Oxygen sensor monitor |
-
1986
- 1986-07-31 JP JP1986116699U patent/JPH0355104Y2/ja not_active Expired
-
1987
- 1987-07-30 EP EP87111071A patent/EP0255143A3/en not_active Withdrawn
- 1987-07-31 US US07/080,069 patent/US4868508A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5393269U (ja) * | 1976-12-28 | 1978-07-29 |
Also Published As
Publication number | Publication date |
---|---|
EP0255143A3 (en) | 1990-08-08 |
US4868508A (en) | 1989-09-19 |
EP0255143A2 (en) | 1988-02-03 |
JPH0355104Y2 (ja) | 1991-12-06 |