Spark Camera Annotation and Control System for the BRL (Ballistic Research Laboratory) Transonic Range Facility
Abstract
New cameras were recently installed into the Transonic Range Facility of the Ballistic Research Laboratory as part of a range modification program. An automated annotation and control system was designed and fabricated by the Electronics Team of the Free Flight Aerodynamics Branch, Launch and Flight Division, to interface with the new cameras. This annotation system consists of electronic instrumentation and custom-built circuits installed into the cameras themselves. It provides for remote opening and closing of the shutter on all cameras and for transmitting data, round number, and station identification information to each camera to be photographically impressed upon the film at each station. It also has features for determining a variety of status conditions such as shutter status and film load-unload conditions. This system was completed in December 1986 and was fully operational by the end of January 1987. Details of the design and fabrication of this system are given in this report. Keywords: High speed cameras; Spark shadowgraph photography; Automated annotation; Remote control systems; Multiprogrammers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1989
- Accession Number
- ADA212266
Entities
People
- Eugene M. Ferguson
- James B. Harmon
- Kenneth A. Willan
- Lawrence W. Burke Jr.
- Wallace H. Clay
Organizations
- Ballistic Research Laboratory