GB864587A - Improvements in or relating to temperature measuring apparatus - Google Patents
Improvements in or relating to temperature measuring apparatusInfo
- Publication number
- GB864587A GB864587A GB3795958A GB3795958A GB864587A GB 864587 A GB864587 A GB 864587A GB 3795958 A GB3795958 A GB 3795958A GB 3795958 A GB3795958 A GB 3795958A GB 864587 A GB864587 A GB 864587A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- resistance
- measuring apparatus
- nov
- resistor
- 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.)
- Expired
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
- G01K7/22—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 the element being a non-linear resistance, e.g. thermistor
- G01K7/24—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 the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
- G01K7/25—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 the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
864,587. Measuring temperature electrically. WAYNE KERR LABORATORIES Ltd., and FLETCHER, K. A. Nov. 6, 1959 [Nov. 25, 1958], No. 37959/58. Class 40 (1). Temperature measuring apparatus comprises an element 10 of material with a negative coefficient of resistance change with temperature and of which the temperature / resistance relationship is approximately expressed by the formula where T is the temperature, R is the resistance of the element and K is a constant, which element is connected in series with a resistor 12 of magnitude K across a voltage supply source 11 in a bridge circuit comprising further impedances 13 and 14 and a current measuring indicator 15. The impedances 13 and 14 are conveniently resistors and have resistances which are small compared with R and K. A resistor 16 and rectifier 17 connected across the indicator 15 provide a linear relationship between the current indicated and the temperature of the element 10. The element 10 may be made of thermistor material, e.g. a combination of oxides of nickel, manganese and cobalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3795958A GB864587A (en) | 1958-11-25 | 1958-11-25 | Improvements in or relating to temperature measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3795958A GB864587A (en) | 1958-11-25 | 1958-11-25 | Improvements in or relating to temperature measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB864587A true GB864587A (en) | 1961-04-06 |
Family
ID=10400232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3795958A Expired GB864587A (en) | 1958-11-25 | 1958-11-25 | Improvements in or relating to temperature measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB864587A (en) |
-
1958
- 1958-11-25 GB GB3795958A patent/GB864587A/en not_active Expired
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