A Condenser Gage Apparatus for Measuring the Pressure and Thrust Characteristics of Jet Propulsion Motors

Abstract

Pressure to be measured is applied to condenser type gage. Pressure causes change in electrical capacity of gage which affects frequency response of tuned radio frequency transformer thereby changing output of transformer. This is detected and leads to bucking circuit which acts as gain control and zero adjuster. Output from bucking box is applied to oscillograph, and deflection of oscillograph beam is photographically recorded. For measuring thrust, reaction force is applied to piston acting in oil-filled cylinder.

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Document Details

Document Type
Technical Report
Publication Date
Aug 05, 1943
Accession Number
ADB815135

Entities

People

  • Charles G. Sage

Organizations

  • Monsanto

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cameras
  • Capacitance
  • Combustion
  • Control Panels
  • Deflection
  • Detectors
  • Dynamic Pressure
  • Firing Circuits
  • Frequency
  • Frequency Response
  • Ignition Lag
  • Jet Propulsion
  • Measurement
  • National Security
  • Oscillographs
  • Power Supplies
  • Radio Frequency

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Fluid Dynamics.
  • Geodesy