GB969917A - Improvements in or relating to temperature measuring methods - Google Patents
Improvements in or relating to temperature measuring methodsInfo
- Publication number
- GB969917A GB969917A GB29158/61A GB2915861A GB969917A GB 969917 A GB969917 A GB 969917A GB 29158/61 A GB29158/61 A GB 29158/61A GB 2915861 A GB2915861 A GB 2915861A GB 969917 A GB969917 A GB 969917A
- Authority
- GB
- United Kingdom
- Prior art keywords
- probe
- temperature
- curie point
- voltage
- heating
- 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
- 239000000523 sample Substances 0.000 abstract 14
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000004020 conductor Substances 0.000 abstract 2
- 230000001419 dependent effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000446 fuel Substances 0.000 abstract 1
- 239000003758 nuclear fuel Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000007790 solid phase Substances 0.000 abstract 1
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
- G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
-
- 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
- G01K7/18—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 linear resistance, e.g. platinum resistance thermometer
- G01K7/20—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 linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/102—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain the sensitive element being part of a fuel element or a fuel assembly
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/112—Measuring temperature
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/36—Control circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
969, 917. Measuring temperature electrically. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 19, 1962 [Aug. 11, 1961], No. 29158/61. Heading G1N. A temperature measuring device, particularly for nuclear reactor fuel elements, comprises a probe with a magnetic core, electrically heated to its Curie point and an integrator to measure the additional energy required by the probe to reach this temperature. The probe 11 (Fig. 1) comprises two coaxial conductors shorted at one end, the inner conductor adjacent the short circuit being of comparatively high resistance, coated with a material of high magnetic permability, and in thermal contact with a fuel element. An A.C. supply to the probe has a constant current characteristic due to a series high resistance 12. As the probe temperature rises, its permeability falls causing a reduction in the voltage across it, this voltage remaining substantially constant when the Curie point is reached. The initially changing voltage is differentiated at 15, (Fig. 2) and amplified at 16 to energize a relay coil 13. When the Curie point of the probe is reached, the differentiator output is zero and relay 13 is de-energized, whereupon the probe heating current is interrupted at 13a. Signals proportional to the probe resistance and to the square of probe current respectively from devices 17, 18, are multiplied at 19 and integrated at 21. A normally closed contact 13b is open when probe heating takes place and the integrator output is combined in a unit 22 with signals dependent upon auxilliary probe parameters such as self heating, to obtain a corrected integral and hence element temperature. The probe may alternatively comprise a resistor with two temperature dependent solid phases, and the apperatus is sensitive to the constant temperature at which the material changes from the one state to the other. A number of probes may be connected in series to the integrating circuit which thus determines the temperature at the hottest probe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29158/61A GB969917A (en) | 1961-08-11 | 1961-08-11 | Improvements in or relating to temperature measuring methods |
| FR906231A FR1330590A (en) | 1961-08-11 | 1962-08-06 | Temperature measuring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29158/61A GB969917A (en) | 1961-08-11 | 1961-08-11 | Improvements in or relating to temperature measuring methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB969917A true GB969917A (en) | 1964-09-16 |
Family
ID=10287055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29158/61A Expired GB969917A (en) | 1961-08-11 | 1961-08-11 | Improvements in or relating to temperature measuring methods |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB969917A (en) |
-
1961
- 1961-08-11 GB GB29158/61A patent/GB969917A/en not_active Expired
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