A RECORDING PHOTOMETER AND ITS USE IN STUDIES OF CATHODE RAY SCREEN DISPLAYS.
JOHNS HOPKINS UNIV BALTIMORE MD
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The design and construction details of a recording electronic photometer are presented. By virtue of its sensitivity, areal selectivity, rapidity of response, and recording capabilities, the instrument is peculiarly suited for measurements of the complex transient light patterns generated by radar indicators. However, applications can also be made to general photometric problems, including those which involve densitometric and contrast measurements. Examples of photometric data obtained with the device from a radar plan position indicator are given and explained. Some additional features of instrumental design, conceived largely through operational experiences, are suggested for an improved version. Author
- Test Facilities, Equipment and Methods