Patent ID: 6964518
Filing Date: 2005-11-15
Classification: F16C,G01K,G08C,H04Q

Abstract:
1. A device for measuring temperature of the inside of an inaccessible movable mechanical part, comprising: a temperature-sensitive element from which a measurement of temperature can be obtained and having a SAW chip with temperature-dependent transfer function, the SAW chip having a transducer designed to be connected to an antenna mounted on an outside of said mechanical part, an encapsulation for said temperature-sensitive element, the encapsulation being designed to be arranged separately and kept in position at an inner end of a mounting hole in said moving mechanical part and thus exposed to temperature inside the mechanical part, a bolt for closing the mounting hole and a material placed between said bolt and the encapsulation for holding the encapsulation securely in position after mounting, and a transmission line for connecting the antenna to the temperature-sensitive element, whereby the device is adapted for measuring temperature inside the inaccessible mechanical part while the mechanical part is in motion.