MX9804832A - Transmision de la temperatura, con calibracion en linea, que usa la interferencia de johnson. - Google Patents
Transmision de la temperatura, con calibracion en linea, que usa la interferencia de johnson.Info
- Publication number
- MX9804832A MX9804832A MX9804832A MX9804832A MX9804832A MX 9804832 A MX9804832 A MX 9804832A MX 9804832 A MX9804832 A MX 9804832A MX 9804832 A MX9804832 A MX 9804832A MX 9804832 A MX9804832 A MX 9804832A
- Authority
- MX
- Mexico
- Prior art keywords
- output
- temperature
- resistance
- circuitry
- provides
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
-
- 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
- G01K7/30—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermal noise of resistances or conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Abstract
Un transmisor (10) de la temperatura y un sistema de control de proceso, incluyen una entrada (1, 2, 3, 4) de sensor, para acoplarse al sensor (16) de la temperatura, que tiene una resistencia dependiente de la temperatura. El sistema de circuitos (20, 26, 50), que mide la resistencia, se acopla a la entrada (1, 2, 3, 4) del sensor y suministra una salida de la resistencia relacionada con la resistencia dependiente de la temperatura. Un sistema de circuitos (78, 88) de conversion analogico en digital, se acopla a la entrada (1, 2, 3, 4) del sensor y suministra una salida digital relacionada a las señales de corriente alterna (CA), a través de la entrada del sensor. El sistema (64) de circuitos de proceso de la señal digital incluye un componente de la interferencia de Johnson de las señales de CA y suministra una salida digitalizada de Johnson. El sistema de circuitos que mide la temperatura suministra una salida de temperatura calibrada, con base en la salida de la resistencia y la salida digitalizada de la interferencia de Johnson. El sistema de circuitos (24) de salida transmite la salida de la temperatura calibrada sobre el circuito (11) de control del proceso.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/582,514 US5746511A (en) | 1996-01-03 | 1996-01-03 | Temperature transmitter with on-line calibration using johnson noise |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9804832A true MX9804832A (es) | 1998-09-30 |
Family
ID=24329445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9804832A MX9804832A (es) | 1996-01-03 | 1998-06-16 | Transmision de la temperatura, con calibracion en linea, que usa la interferencia de johnson. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5746511A (es) |
EP (1) | EP0871851B1 (es) |
CN (1) | CN1130552C (es) |
CA (1) | CA2240909A1 (es) |
DE (1) | DE69632871T2 (es) |
MX (1) | MX9804832A (es) |
WO (1) | WO1997025602A1 (es) |
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-
1996
- 1996-01-03 US US08/582,514 patent/US5746511A/en not_active Expired - Lifetime
- 1996-12-19 CN CN96199278A patent/CN1130552C/zh not_active Expired - Lifetime
- 1996-12-19 WO PCT/US1996/020681 patent/WO1997025602A1/en active IP Right Grant
- 1996-12-19 CA CA002240909A patent/CA2240909A1/en not_active Abandoned
- 1996-12-19 DE DE69632871T patent/DE69632871T2/de not_active Expired - Lifetime
- 1996-12-19 EP EP96945064A patent/EP0871851B1/en not_active Expired - Lifetime
-
1998
- 1998-06-16 MX MX9804832A patent/MX9804832A/es unknown
Also Published As
Publication number | Publication date |
---|---|
CA2240909A1 (en) | 1997-07-17 |
EP0871851A1 (en) | 1998-10-21 |
DE69632871D1 (de) | 2004-08-12 |
WO1997025602A1 (en) | 1997-07-17 |
US5746511A (en) | 1998-05-05 |
CN1205771A (zh) | 1999-01-20 |
EP0871851B1 (en) | 2004-07-07 |
CN1130552C (zh) | 2003-12-10 |
DE69632871T2 (de) | 2005-03-17 |
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