Abstract: A laminated heater paddle is provided, in which a heater element having a symmetrical pattern is brazed within a heater channel defined between a first layer and a second layer. The laminated heater paddle provides brazed junctions between dissimilar metals. The heater element, having a stainless steel outer surface, is plated with nickel, and is then squeezed between the aluminum lower and upper layers. Aluminum shim stock is used between the first layer of aluminum and the second layer of aluminum or nickel plated stainless steel, wherein the aluminum shim stock provides a brazing medium. The assembly is then subjected to a vacuum, before being heated near the melting point of the aluminum. Alternative heater embodiments include guide tubes or cooling tubes between two or more brazed layers. The brazing process can alternatively be used for other applications.

Abstract: A temperature measurement system provides improved thermal sensors, including thin film and wire wound RTD's having fast and accurate measurement response times. Thermal sensor housing materials are matched to those of the material being measured, thereby minimizing the use of interface potting materials that would otherwise impose a thermal gradient. A screw-in mounting stabilizes a connection between the housing and the material being measured. Double and triple shielded thermal devices are provided to filter RFI and EMI. Improved surface measurements of high temperatures are obtained by incorporating a thermal mass into thermocouple housing designs. Additionally, a unique stain relief is disclosed.

Abstract: A temperature measurement system provides improved thermal sensors, including thin film and wire wound RTD's having fast and accurate measurement response times. Thermal sensor housing materials are matched to those of the material being measured, thereby minimizing the use of interface potting materials that would otherwise impose a thermal gradient. A screw-in mounting stabilizes a connection between the housing and the material being measured. Double and triple shielded thermal devices are provided to filter RFI and EMI. Improved surface measurements of high temperatures are obtained by incorporating a thermal mass into thermocouple housing designs. Additionally, a unique stain relief allowing access to sensor leads and wire leads by a side opening, prior to adding doping compound and a conductive outer sheath, is described.