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A New Apparatus for Measuring the Temperature at Machine Parts Rotating at High SpeedsAfter a brief survey of the available methods for measuring the temperatures of machine parts at high speed, in particular turbine blades and rotors, an apparatus is described which is constructed on the principle of induction. Transmission of the measuring current by sliding contacts therefore is avoided. Up-to-date experiments show that it is possible to give the apparatus a high degree of sensitivity and accuracy. In comparison with sliding contact types, the present apparatus shows the important advantage that it operates for any length of time without wear, and that the contact difficulties, particularly occurring at high sliding speeds,are avoided.
Document ID
20050019674
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
Gnam, E.
Date Acquired
September 7, 2013
Publication Date
April 1, 1945
Publication Information
Publication: Motortechnische Zeitschrift
Volume: 5
Issue: 10
Subject Category
Instrumentation And Photography
Report/Patent Number
NACA-TM-1080
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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