Claim Your Author Page
Ensure your research is discoverable on Semantic Scholar. Claiming your author page allows you to personalize the information displayed and manage publications.
A self-scanned 1024 element photodiode array and minicomputer are used to measure the phase (wavefront) in the interference pattern of an interferometer to lambda/100. The photodiode array samples… (More)
An experimental study has been made of the properties and characteristics of a glow discharge to a nearly spherical hollow cathode. Current densities in excess of 0.5 amp/cm2 can be drawn from the… (More)
Passive optical cavities have been employed as sensitive dis criminators in fast response laser frequency control systems. The frequency stability of the laser is then determined by the sta bility… (More)
A simple adaptive Kalman filter has been developed to give optimal estimation of a ship's course, speed and position giving sufficient accuracy to be useful for the processing of marine gravity… (More)
An engine heater system monitor for use on diesel truck tractors and the like connects a serial relay coil in the line to supply heater current and actuates the relay at a current level somewhat less… (More)