Date: 29 May 98 02:44:07 From: "john r." <email@example.com> Organization: silence References: 1
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In article <airliners.1998.733@ohare.Chicago.COM>, "Yves E. Hoebeke" <firstname.lastname@example.org> writes >I would like to understand how the Rosemount probe can deliver accurate TAT >info while it's heating element (anti-ice) is switched on. > >I understand from my textbooks that this will not interfere with its >measurement accuracy, but I do not understand how. Its in the design, I am told. The sensor takes air from the center of the flow whereas heated air is on only the outer side of the flow. There must be a very small heating effect but is is disregarded. I once changed a probe for inflight errors and found a large charred locust jammed inside, disrupting the airflow. It certainly does heat the sensors if run on the ground, its how we check both the probes a/ice heating and signal. Cheers, -- _J_O_H_N____R_E_L_P_H____________ email@example.com Teddington, Middlesex in Cold Old England.