GB1008473A - Improvements in or relating to temperature measurement - Google Patents
Improvements in or relating to temperature measurementInfo
- Publication number
- GB1008473A GB1008473A GB2174763A GB2174763A GB1008473A GB 1008473 A GB1008473 A GB 1008473A GB 2174763 A GB2174763 A GB 2174763A GB 2174763 A GB2174763 A GB 2174763A GB 1008473 A GB1008473 A GB 1008473A
- Authority
- GB
- United Kingdom
- Prior art keywords
- junction
- temperature
- circuit
- current
- measured
- 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
-
- 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
- G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
1,008,473. Measuring temperature electrically. May 29, 1964 [May 30,1963], No. 21747/63, Heading G1N. The junction temperature of a semi-conductor device 10 is measured by adding two signals V 1 and V 2 , one of which, V 1 , represents the temperature of an external part of the device 10 as measured by a thermistor 12 mounted on the same heat sink 11 as the device, and the other of which, V 2 , is derived in a circuit, 9, from the output of a current transformer 16 whose primary 17 carries the current which flows through the junction. The signal V 2 is said to be proportional to the temperature difference between the outer parts of the device and its junction. The circuit 9, which represents an electrical analogue of the thermal circuit of the device, contains capacitors 21 to effectively short circuit any transients in the junction current, which would not affect the junction temperature because of the thermal inertia of the device and therefore are required not to produce any effect upon the signal V2. The voltage V3 may be compared with a reference voltage and used to operate a protection relay if it exceeds a predetermined value.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2174763A GB1008473A (en) | 1963-05-30 | 1963-05-30 | Improvements in or relating to temperature measurement |
CH682864A CH413116A (en) | 1963-05-30 | 1964-05-26 | Apparatus for measuring the temperature of a junction of a semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2174763A GB1008473A (en) | 1963-05-30 | 1963-05-30 | Improvements in or relating to temperature measurement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1008473A true GB1008473A (en) | 1965-10-27 |
Family
ID=10168113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2174763A Expired GB1008473A (en) | 1963-05-30 | 1963-05-30 | Improvements in or relating to temperature measurement |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH413116A (en) |
GB (1) | GB1008473A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2096444A1 (en) * | 1970-06-23 | 1972-02-18 | Gen Electric | DEVICE FOR CONTROLLING THE TEMPERATURE OF THE JUNCTION OF A SEMICONDUCTOR DEVICE SUCH AS A THYRISTOR |
EP0256715A2 (en) * | 1986-08-18 | 1988-02-24 | Siliconix Limited | Temperature sensing apparatus |
CN112964389A (en) * | 2021-05-10 | 2021-06-15 | 国网江西省电力有限公司电力科学研究院 | Elbow type cable head fault early warning method and system based on distributed temperature measurement |
-
1963
- 1963-05-30 GB GB2174763A patent/GB1008473A/en not_active Expired
-
1964
- 1964-05-26 CH CH682864A patent/CH413116A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2096444A1 (en) * | 1970-06-23 | 1972-02-18 | Gen Electric | DEVICE FOR CONTROLLING THE TEMPERATURE OF THE JUNCTION OF A SEMICONDUCTOR DEVICE SUCH AS A THYRISTOR |
EP0256715A2 (en) * | 1986-08-18 | 1988-02-24 | Siliconix Limited | Temperature sensing apparatus |
EP0256715A3 (en) * | 1986-08-18 | 1989-08-09 | Siliconix Limited | Temperature sensing apparatus |
CN112964389A (en) * | 2021-05-10 | 2021-06-15 | 国网江西省电力有限公司电力科学研究院 | Elbow type cable head fault early warning method and system based on distributed temperature measurement |
Also Published As
Publication number | Publication date |
---|---|
CH413116A (en) | 1966-05-15 |
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