GB1211429A - Process and apparatus for electrically heating and controlling the temperature of thin layers - Google Patents
Process and apparatus for electrically heating and controlling the temperature of thin layersInfo
- Publication number
- GB1211429A GB1211429A GB2742268A GB2742268A GB1211429A GB 1211429 A GB1211429 A GB 1211429A GB 2742268 A GB2742268 A GB 2742268A GB 2742268 A GB2742268 A GB 2742268A GB 1211429 A GB1211429 A GB 1211429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- resistor
- temperature
- controlling
- current
- 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
- 238000010438 heat treatment Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 239000010410 layer Substances 0.000 abstract 8
- KNIUHBNRWZGIQQ-UHFFFAOYSA-N 7-diethoxyphosphinothioyloxy-4-methylchromen-2-one Chemical compound CC1=CC(=O)OC2=CC(OP(=S)(OCC)OCC)=CC=C21 KNIUHBNRWZGIQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
- G05D23/2401—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor using a heating element as a sensing element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
1,211,429. 429. Automatic temperature control systems. FARBENFABRIKEN BAYER A. G. June 10, 1968, No.27422/68. Heading G3R An arrangement for controlling the temperature of insulating material e.g. glass, porcelain, enamelled or oxidized metal, which has been plated or vapour coated with thin electrically conducting layers having resistance dependent upon temperature, comprises passing a heating current through the layer and simultaneously a measuring current which is electrically separate from and smaller than the heating current. The currents may be alternating and of differing frequencies. A D.C. source 4 may supply current to terminals 3 connected to the layer through a variable resistor 6 and an indicating or recording device 5. The measuring current is provided by an A.C. generator 8 also fed through an indicator or recorder 9, a resistor 10 and D.C. isolating capacitors 12. A fraction of the voltage across resistor 10 is compared with a reference 11 the difference controlling a servomotor M adjusting the value of resistor 6. The conducting layer may be arranged in a bridge circuit which may have a second layer in another arm. The latter arrangement may be used to compare the melting points of two substances one of which is known. The resistor 10 may be adjusted by a programme device. An object may be heated by interposition between layers having conductive coatings, see Fig. 5 (not shown) and the conductive layer may be coated with at least one protective layer. The layer may be optically transparent and may heat a part of an optical apparatus e.g. a microscope table or a spectroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2742268A GB1211429A (en) | 1968-06-10 | 1968-06-10 | Process and apparatus for electrically heating and controlling the temperature of thin layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2742268A GB1211429A (en) | 1968-06-10 | 1968-06-10 | Process and apparatus for electrically heating and controlling the temperature of thin layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1211429A true GB1211429A (en) | 1970-11-04 |
Family
ID=10259318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2742268A Expired GB1211429A (en) | 1968-06-10 | 1968-06-10 | Process and apparatus for electrically heating and controlling the temperature of thin layers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1211429A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2459601A1 (en) * | 1979-06-14 | 1981-01-09 | Honeywell Inc | METHOD AND APPARATUS FOR RAISING THE TEMPERATURE OF A MATERIAL |
| EP0050306A3 (en) * | 1980-10-21 | 1983-12-14 | Asea Ab | Fibre-optics measuring instrument |
| EP0498063A3 (en) * | 1991-01-04 | 1992-08-26 | The Perkin-Elmer Corporation | Circuit for heating and temperature sensing with a single resistive element |
| US5225766A (en) * | 1991-01-04 | 1993-07-06 | The Perkin Elmer Corporation | High impedance current source |
| GB2613565A (en) * | 2021-12-03 | 2023-06-14 | Diamond Coatings Ltd | Resistive heating device |
-
1968
- 1968-06-10 GB GB2742268A patent/GB1211429A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2459601A1 (en) * | 1979-06-14 | 1981-01-09 | Honeywell Inc | METHOD AND APPARATUS FOR RAISING THE TEMPERATURE OF A MATERIAL |
| EP0050306A3 (en) * | 1980-10-21 | 1983-12-14 | Asea Ab | Fibre-optics measuring instrument |
| EP0498063A3 (en) * | 1991-01-04 | 1992-08-26 | The Perkin-Elmer Corporation | Circuit for heating and temperature sensing with a single resistive element |
| US5225766A (en) * | 1991-01-04 | 1993-07-06 | The Perkin Elmer Corporation | High impedance current source |
| GB2613565A (en) * | 2021-12-03 | 2023-06-14 | Diamond Coatings Ltd | Resistive heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |