G - Physics – 01 – K
Patent
G - Physics
01
K
73/123, 116/67
G01K 11/12 (2006.01) G01K 11/16 (2006.01)
Patent
CA 1053927
ABSTRACT OF THE DISCLOSURE A rapid and convenient temperature indicator is provided having a tubular heat-conducting member joined at one end to a heat sink and having the other end rounded for ease of contact with the surface whose temperature is to be measured. Conveniently, a cylindrical protective cover is provided which is slidable mounted on the heat sink by means of a slot relieved threaded member and nut. The heat- conducting tube has a darkened surface which is coated with a liquid crystal composition having a mesophase temperature range which provides a temperature response in the range of interest. One or more liquid crystal compositions may be employed providing bands along the tube. A reticule is provided, which can be calibrated to give an accurate approx- imation of the temperature of the surface being measured.
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