Calorimeter, Scanning, Differential
Wednesday, August 30, 2006
A Differential Scanning Calorimeter has been designed and developed to detect radiation emitted from a flame. The Calorimeter provides means to evaluate the limits of flammability of materials that are exhibited in other reactions.
A light pipe made of fused silica Fiber Optics or a sapphire rod conducts light from a hole in the Calorimeter lid to a photodetector. A gap between the end of the light pipe and the lid permits venting of combustion products. A mass-flow controller regulates the flow of the reactant gas through the combustion chamber. The photodetector detects the light emitted by the burning of the specimen in the reactant gas. The output of the photo-diode is correlated with the thermal data from the Calorimeter. The photometric detection of the flames, coupled with the detection of the reaction of the Calorimeter providing an indication of the flammability threshold temperatures.
Source: Lockheed Engineering and Science Corp for NASA, Johnson Space Center
Reference: Ralph M. Tapphorn, Dwight D. Janoff, and Richard M. Shelley, Lockheed Engineering and Science Corp
Industrial Products
posted by JD52 @ 8:26 PM,
