SE8104874L - PROCEDURE AND ELECTRICAL SOURCE Saturation Device - Google Patents
PROCEDURE AND ELECTRICAL SOURCE Saturation DeviceInfo
- Publication number
- SE8104874L SE8104874L SE8104874A SE8104874A SE8104874L SE 8104874 L SE8104874 L SE 8104874L SE 8104874 A SE8104874 A SE 8104874A SE 8104874 A SE8104874 A SE 8104874A SE 8104874 L SE8104874 L SE 8104874L
- Authority
- SE
- Sweden
- Prior art keywords
- resistor
- series
- temperature
- voltages
- charge
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
- G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
By using a dual slope integrator for determining the ratio of a variable transducer resistance 1 (e.g. a temperature dependent resistor or diode) to a single reference resistor 3 connected in series therewith, the disadvantages of known measuring bridge circuits where numerous essential resistances etc lead to errors according to fluctuating ambient temperature, ageing effects and production tolerances are avoided insofar as only tolerance values of the single resistor 3 come into the matter. The series connected resistors are fed a controlled current via lines 63, 64 and the ratio of the voltages across them is determined by operating switches 101 and 103 in turn whereby to charge and discharge capacitor 27 of integrator 7 at rates determined respectively by the voltages across resistor 1 and 3, charge being for a predetermined number of clock pulses; during the discharge and until the capacitor falls to a reference voltage, comparator 9 enables clock pulses to be counted. For measuring temperature differences, different transducers are connected in turn in series with the same resistor 3. Non-linear charges of resistance with temperature are compensated by inverter 10 and associated elements 43-5 and 110. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803032091 DE3032091C2 (en) | 1980-08-26 | 1980-08-26 | Device for electrical heat measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8104874L true SE8104874L (en) | 1982-02-27 |
| SE450663B SE450663B (en) | 1987-07-13 |
Family
ID=6110401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8104874A SE450663B (en) | 1980-08-26 | 1981-08-17 | DEVICE FOR ELECTRIC Saturation of the amount of heat consumed in a heat consumer |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT388456B (en) |
| BE (1) | BE890067A (en) |
| CH (1) | CH664016A5 (en) |
| DE (1) | DE3032091C2 (en) |
| DK (1) | DK158165C (en) |
| FR (1) | FR2489509A1 (en) |
| GB (1) | GB2082780B (en) |
| NL (1) | NL191295C (en) |
| SE (1) | SE450663B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4022546A1 (en) * | 1990-07-16 | 1992-01-23 | Emitec Emissionstechnologie | Sensor device for monitoring vehicle exhaust systems - uses two temp.-sensors, one of which is coated with catalyst to promote oxidn. of hydrocarbon(s) and carbon mon:oxide |
| GB2267967B (en) * | 1992-06-17 | 1996-02-28 | Status Instr Limited | Apparatus for temperature measurement |
| CN1126514A (en) * | 1994-04-05 | 1996-07-10 | 菲利浦电子有限公司 | Resistance measuring circuit, and thermal appliance, electrical thermometer and coldgenerating appliance including such a measuring circuit |
| FR2874692B1 (en) * | 2004-08-27 | 2006-10-13 | Actaris Sas Soc Par Actions Si | DEVICE FOR MEASURING TEMPERATURE IN A THERMAL ENERGY COUNTER |
| CN109668648B (en) * | 2019-01-31 | 2024-10-22 | 合肥芯碁微电子装备股份有限公司 | Feedback signal acquisition circuit system for exposure light source of direct-writing photoetching machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2312858C2 (en) * | 1973-03-15 | 1985-04-25 | Richard Dr.-Ing. Friedl | Method for measuring the amount of heat |
| DE2507732A1 (en) * | 1975-02-22 | 1976-09-02 | Heinz Dipl Ing Mense | Measurement system for temperature dependent resistors - has sensitive resistors in series and potential difference applied to operational amplifier |
| DE2636000C3 (en) * | 1976-08-11 | 1981-05-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Circuit arrangement for the electrical measurement of a physical variable, in particular the temperature |
| US4150573A (en) * | 1976-12-03 | 1979-04-24 | Tokyo Shibaura Electric Co., Ltd. | Electronic digital thermometer |
| DE2710782C2 (en) * | 1977-03-11 | 1982-05-27 | MITEC Moderne Industrietechnik GmbH, 8012 Ottobrunn | Device for measuring temperature differences |
| SE7714645L (en) * | 1977-12-22 | 1979-06-23 | Electrolux Ab | SET TO META TEMPERATURE |
| DE2801938A1 (en) * | 1978-01-18 | 1979-07-19 | Kienzle Uhrenfabriken Gmbh | Temp. measurement circuit using variable resistor - uses ration between supply voltage and sensor voltage drop to give temp. indication |
-
1980
- 1980-08-26 DE DE19803032091 patent/DE3032091C2/en not_active Expired
-
1981
- 1981-08-17 SE SE8104874A patent/SE450663B/en not_active IP Right Cessation
- 1981-08-21 DK DK372481A patent/DK158165C/en not_active IP Right Cessation
- 1981-08-24 CH CH543981A patent/CH664016A5/en not_active IP Right Cessation
- 1981-08-24 FR FR8116147A patent/FR2489509A1/en active Granted
- 1981-08-25 AT AT369681A patent/AT388456B/en not_active IP Right Cessation
- 1981-08-25 GB GB8125910A patent/GB2082780B/en not_active Expired
- 1981-08-25 BE BE0/205752A patent/BE890067A/en not_active IP Right Cessation
- 1981-08-26 NL NL8103970A patent/NL191295C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2082780B (en) | 1985-07-17 |
| ATA369681A (en) | 1988-11-15 |
| NL191295C (en) | 1995-05-01 |
| SE450663B (en) | 1987-07-13 |
| DK372481A (en) | 1982-02-27 |
| DK158165C (en) | 1990-09-03 |
| GB2082780A (en) | 1982-03-10 |
| AT388456B (en) | 1989-06-26 |
| DE3032091C2 (en) | 1986-09-04 |
| FR2489509A1 (en) | 1982-03-05 |
| CH664016A5 (en) | 1988-01-29 |
| FR2489509B1 (en) | 1985-03-22 |
| DK158165B (en) | 1990-04-02 |
| DE3032091A1 (en) | 1982-04-29 |
| NL8103970A (en) | 1982-03-16 |
| BE890067A (en) | 1981-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
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| NUG | Patent has lapsed |
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