Thermal measuring and testing – Temperature measurement – Composite temperature-related paramenter
Patent
1980-03-20
1982-10-05
Ruehl, Charles A.
Thermal measuring and testing
Temperature measurement
Composite temperature-related paramenter
116216, 374 29, G01K 1300, G01K 308
Patent
active
043522904
ABSTRACT:
A heat transfer measuring apparatus for a windowpane of a room includes a body portion defining an internal chamber with one open end adapted to fit against the inside surface of a windowpane. Within the chamber, which is thermally insulated from the ambient temperature conditions of the room inside such window is a temperature sensing element for measuring the temperature within the insulated chamber. A shield portion is positioned within the apparatus at a location between the temperature sensing element and the window opening. The shield permits air transfer for transmission of thermal energy from such a windowpane into the chamber area where the temperature sensing element is located, but limits the direct transmission of solar or other radiant energy through such window against the temperature sensing element. Comparison of the temperature within the chamber of the apparatus and the ambient temperature of the room indicates the relative or quantitative gain or loss of energy inwardly or outwardly through the window.
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