Patent ID: 7982580
Filing Date: 2011-07-19
Classification: G01K,Y10T

Abstract:
1. A temperature sensor comprising: a mineral insulator cable having a metal outer tube; a sheath extending from a distal end of the mineral insulator cable, the sheath having a closed distal end, wherein the sheath includes a cylindrical metal sleeve having a proximal end abutting and metallically bonded to the distal end of the mineral insulator cable, and a metal end cap metallically bonded to a distal end of the sleeve, and wherein the sleeve has an outer diameter that is equal to an outer diameter of the outer tube of the mineral insulator cable; a resistance temperature detector (RTD) sensing element positioned within the sheath adjacent the closed distal end and electrically connected to electrical leads of the mineral insulator cable; and a first ceramic adhesive filling a first portion of the sheath; and a second ceramic adhesive filling a second portion of the sheath, such that the first and second ceramic adhesives surround the RTD sensing element.