CN2048580U - Menbrane controllable surface electric thermo-couple - Google Patents
Menbrane controllable surface electric thermo-couple Download PDFInfo
- Publication number
- CN2048580U CN2048580U CN 88215510 CN88215510U CN2048580U CN 2048580 U CN2048580 U CN 2048580U CN 88215510 CN88215510 CN 88215510 CN 88215510 U CN88215510 U CN 88215510U CN 2048580 U CN2048580 U CN 2048580U
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- CN
- China
- Prior art keywords
- film
- bridge
- couple
- temperature
- membrane
- 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.)
- Withdrawn
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model provides a sensor of membrane temperature controllable surface electric thermo-couple which can control the wall surface temperature. One layer of insulation material is arranged between the bridge membrane of the thermo-couple and the membrane of the bridge membrane is respectively communicated with the thermo-couple electrode and the heating electrode. The surface bridge membrane can be simultaneously heated by heating the electrode when measuring. The utility model can test the change forms of the surface temperature in different temperature conditions, in particular suitable to the heat transferring research of the internal-combustion engine.
Description
The utility model relates to a kind of sensor device of testing the wall transient temperature, is specially adapted to that internal combustion engine conducts heat and other need measure moment wall surface temperature test.
The general device that is used to measure component wall surface transient temperature is the film surface thermopair, and it is by realize the measurement of the transient temperature of wall as the hot thermocouple node at transducer probe assembly surface evaporation metal film.Because its surface temperature cycle change shape difference of wall of different temperatures level, this difference makes the result of different type of machines produce difference.
In order to study the influence of wall surface temperature level to heat transfer characteristic, the utility model provides a kind of surface thermocouple sensor that can control the wall surface temperature, and it can be implemented under the different temperature levels surface temperature change shape is tested.
The purpose of this utility model is achieved in that it is by heating electrode, adds thermoae film and the surface bridge film constitutes, first evaporation one deck insulation film carries out electrical isolation between thermopair bridge film and metallic matrix, its surface bridge membrane material adopts the semiconductor film resistance material, make thermopair bridge film respectively with thermoelectric dipole with add thermoae communicating again, in thermocouple measurement, can come area of heating surface bridge film by heating electrode, thereby realize the temperature control on thermopair surface.
Because adopt the mode of electrical-heating film, by regulating heating voltage, so controlling diaphragm temperature easily because film very thin (can less than 0.5), its add thermo-responsive might as well, surface temperature is even, and is simple and reliable for structure.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is vertical half-sectional view of the utility model concrete structure.
Fig. 2 is the utility model part sectioned view.
Fig. 3 is the utility model planimetric map.
Below in conjunction with figure explanation concrete device of the present utility model and working condition.
The heating part of this sensor comprises and adds thermoae film 1 that surface bridge film 2 and heating electrode 5 are formed, earlier steaming degree last layer crystalline silica insulating gel 3 between thermopair bridge film and metallic matrix.After the heating electrode two ends added voltage, the surface bridge film just was equivalent to a resistance, and the effect that adds thermoae film is to make the current density of surface bridge film even, thus evenly heating.By regulating heating voltage is the temperature at may command bridge film place, whole heating circuit and the insulation of thermopair matrix, and surface electrical thermo wires 6 and embedded thermopair 4 be the sensor measurement part, distinguish display surface and from the temperature at surperficial 5 millimeters places.
Claims (3)
1, a kind of surface thermocouple device that can control the bridge film temperature, it by heating electrode, add thermoae film and the surface bridge film constitutes, it is characterized in that the bridge film of surface thermocouple also is the resistance heating film simultaneously.
2, device according to claim 1 is characterized in that the surface bridge membrane material adopts the semiconductor film resistance material.
3, device according to claim 1 is characterized in that between surface bridge film and metallic matrix carrying out electrical isolation by the insulation film of an evaporation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215510 CN2048580U (en) | 1988-10-21 | 1988-10-21 | Menbrane controllable surface electric thermo-couple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215510 CN2048580U (en) | 1988-10-21 | 1988-10-21 | Menbrane controllable surface electric thermo-couple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2048580U true CN2048580U (en) | 1989-11-29 |
Family
ID=4848291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88215510 Withdrawn CN2048580U (en) | 1988-10-21 | 1988-10-21 | Menbrane controllable surface electric thermo-couple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2048580U (en) |
-
1988
- 1988-10-21 CN CN 88215510 patent/CN2048580U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |