HDL Yaw Sonde Instrumentation,
Abstract
An electro-optical system has been developed by the Harry Diamond Laboratories to telemeter in-flight rotational characteristics of artillery rounds and rockets without modification to the round. It is a small, self-contained, gun-rugged unit---designated the HDL Yaw Sonde---that can be screwed into any artillery round that accepts standard fuzes. (A 20in., 12-thread fuze is defined as U. S. Standard 1A by ABCA Army Standary 101A.) Sepcial versions of the unit have also been developed for other rounds. Operation of the system is based on the admission of sunlight through a pinhole, the light being swept past a V-slot as the round rotates. Complete rotational information is obtained by proper interpretation of the signals generated by the light beam. The HDL Yaw Sonde system has been determined adaptable to artillery rounds, Navy Bom-Roc rockets, and Air Force bomblets. Accurate data on spin and yaw have been obtained on a variety of tests at different high-g accelerations. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1971
- Accession Number
- AD0732342
Entities
People
- Robert E. Elmore
Organizations
- Harry Diamond Laboratories