INFRARED FOR CHECKOUT
Abstract
The experimentation as presented in this study includes an analysis of certain resistive components and circuits, and it describes the magnitude of infrared changes that can be expected under various operating conditions. This analysis established that, within limits, faults can theoretically be isolated through infrared detection and processing techniques. These limits depend on the accuracy of the detection and processing equipment. The theoretical validation of the infrared checkout technique was followed up with laboratory studies of actual component changes. The laboratory studies confirmed the theoretical work in that the changes greater than 0.5C that were predicted were also detected. However, there were changes of less than 0.5C that were essential for complete fault isolation that could not be detected with the present laboratory equipment. The study also describes various infrared detection and processing techniques that can be used. The laboratory study utilized a point detection technique. The sensors that were used were thermistors. Proper selection and matching of thermistors was found to be essential for minimizing the acquisition of erroneous data.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0409589
Entities
People
- Ruth A. Herman