Accession Number:

ADA273952

Title:

Measurement Techniques for Electrothermal-Chemical Gun Diagnostics

Descriptive Note:

Final rept. Mar 1992-Apr 1993

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1993-12-01

Pagination or Media Count:

45.0

Abstract:

Methods of acquiring data, including pressures, load current and voltage, and crow-bar diode current and voltage with a minimum of electrical noise in electrothermal-chemical ETC ballistic and combustion experiments are described. Measurements are performed in a 30-mm ETC gun facility that is driven by a 130-kJ maximum pulsed-power supply and a 50-cm3 closed chamber facility using a 300-kJ power supply, both of which are located at the U.S. Army Research Laboratory. Strict attention is devoted to grounding of measurement and data- recording devices, as well as in shielding of measurement electronics, data lines, and high-power modulator components with Faraday enclosures. The use of ferrite rings on data lines and 60-Hz power lines is frequent, and fiber optical links are used for electrical isolation between data recording equipment and high-voltage components. The experimental arrangement and resulting data are presented, and comments and conclusions are included. Voltage, Data acquisition, Electric noise, Electrothermal-chemical, Pulse forming network, Pulse power supply, Diagnostics general.

Subject Categories:

  • Theoretical Mathematics
  • Guns
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE