Accession Number : AD0882194

Title :   Further Evaluation of a Telemetry System for Use in Shock Interaction Experiments,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Merritt, David L. ; Aronson, Philip M.

Report Date : 06 OCT 1970

Pagination or Media Count : 39

Abstract : The feasibility of using the Lockheed Miniature High 'G' Telemetry System to measure transient pressures on a model flying through a head-on shock wave was investigated previously in the NOL Shock Interaction Range. An additional brief test program was run to see if there are any special problems associated with the use of the same telemetry system for oblique shock interaction experiments. Three nine-degree half-angle cone models, each equipped with a capacitance-type pressure gage and a single channel FM transmitter, were launched from a 40mm powder gun at a speed of 2600 fps. The models flew through a Mach 3 shock wave which was oriented at a 50-degree angle to the flight path of the models. Signals were received from two of the models. As in the earlier tests, the pressure gage was found to need improvement in both frequency response and damping characteristics. An in-flight calibration technique is also needed. The only new problem area uncovered that is specifically associated with oblique interaction tests is model-roll control. (Author)

Descriptors :   *SHOCK WAVES), (*TELEMETER SYSTEMS, TEST FACILITIES, SUPERSONIC FLIGHT, INTERACTIONS, TEST METHODS.

Subject Categories : Test Facilities, Equipment and Methods
      Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE