The thermocouple consists of an internal wire (Pt, Au, Ag) inside a glass tube that is pulled down to a diameter of 1 - 2 μm or less. Probes are available with second electrode (leg) from film semiconductor evaporated on the outside of the glass tube. Semiconductor PbTe doping special impurity, provides constant high multitude of the thermoelectric power in the wide temperature interval (-100 - 200 °C). Sensitivity of the thermocouple is from 2000 to 300 μV/K and does not change during long time. Special protective on the base of ultrathin polymer layer permits using thermocouple in aggressive atmosphere. Calculations indicate the response time of thermocouple 1 μsec. The suitability of this thermocouple for light intensity measurements with micrometer spatial resolution is demonstrated by measuring the focused beam of the laser. In addition, such thermocouples are intrinsically suitable for applications in scanned probe microscopies. All these unique advantages make the pipette thermocouples a new and extremely promising sensor in a variety of applications include microelectronics, microbiology and others.
|Number of pages||5|
|State||Published - 1 Jan 1996|
|Event||Proceedings of the 1996 15th International Conference on Thermoelectrics, ICT'96 - Pasadena, CA, USA|
Duration: 26 Mar 1996 → 29 Mar 1996
|Conference||Proceedings of the 1996 15th International Conference on Thermoelectrics, ICT'96|
|City||Pasadena, CA, USA|
|Period||26/03/96 → 29/03/96|