Electric heating – Metal heating – By arc
Patent
1994-02-15
1996-09-24
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
374 43, 374 44, B23K 2600, G01N 2518, G01N 2520
Patent
active
055587909
ABSTRACT:
Provided is a method and apparatus for the thermal analysis of a substance. The method comprises suspending a substance sample on a substrate in a reactor using a temperature sensor positioned at the center of the reactor. The reactor is then heated by two laser beams focused on the reactor. The resulting temperature dependence of the sample/substance during heating is measured. Additionally, the sample/substrate is heated to a temperature above the reactor temperature with a third laser beam. The rate at which the sample/substance temperature relaxes to the temperature of the reactor is measured. This additional heating of the sample/substance is preferably achieved by a laser focused on the sample/substance itself. All of the measured information can then be fed into a computer through an electronic interface to provide data on the particular substance undergoing thermal analysis. The method and the system used to effect the practice of the method can be used to study samples of various substances to aid in the design and process control of manufacturing processes through integration with a neural network. The method has also been demonstrated to provide data necessary to optimize the burning of high sulfur fuel oils. The present invention is particularly applicable to aiding in the analysis and design of thermal processes used to destroy hazardous chemicals in waste materials.
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Evans Geoffrey S.
Science Applications International Corporation
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