Engineering topics
Publications and source records attributed to Wrench, E. H..
The concept of a real time contamination monitor is studied and the evolution of the optical module component from laboratory model through the engineering evaluation model is reported. Mechanisms employed and problems experienced are described. Current efforts are directed toward a major simplification of design in a unit intended for flight.
Instrument can measure optical transmission, reflectance, and scattering. This information can be used to identify changes in optical properties or deviations from required optical standards. Device consists of monochromatic source, photo detector, transfer mirror, and hemiellipsoid. System might be used to measure optical properties of thin film.
Hard wire rotating coupling device for continuous soldered wire connections between spacecraft and solar arrays
Hard wire hermetically sealed two degrees of freedom rotating coupling design for continuous soldered wire connections between spacecraft and oriented solar array
Quick-opening lightweight solenoid hammer valve requires a low amount of electrical energy to open, and closes by the restoring action of the mechanical springs. This design should be applicable to many quick-opening requirements in fluid systems.