Thermal measuring and testing – Differential thermal analysis
Patent
1988-05-20
1989-08-22
Yasich, Daniel M.
Thermal measuring and testing
Differential thermal analysis
136230, 340595, G01, G01N 2500
Patent
active
048590762
ABSTRACT:
A heated, split thermowell comprises a cylindrical shank and integral, axially extending, part-cylindrical probes spaced by at least a first gap defined by a bilateral plane. The thermowell is mounted to the sidewall of a pressure vessel for communicating through a penetration in the sidewall with the fluid state in the pressure vessel. Each probe has at least one parallel axial bore therein, a related, selected pair of probes receiving respective heater and temperature sensing elements in the associated bores, and together functioning as a differential temperature sensor producing distinguishable, differential temperature outputs representative of the fluid condition of steam versus water. Duplex sensor embodiments permit toggling between different, selected such pairs of probes for on-line testing and verification of monitored conditions and operability of the elements and supporting circuits, with automatic substitution of complementary elements in the event of element failure. Each thermowell also permits on-line replacement of a failed element.
REFERENCES:
patent: 1189785 (1916-07-01), Brown
patent: 3366942 (1968-01-01), Deane
patent: 3899918 (1975-08-01), Privalov et al.
patent: 4154085 (1979-05-01), Hentze
patent: 4449403 (1984-05-01), McQueen
Abeles D. C.
Westinghouse Electric Corp.
Yasich Daniel M.
LandOfFree
Differential temperature sensors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Differential temperature sensors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential temperature sensors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2415221