A Logarithmic Recorder for Measuring Light Down to Low Intensities

Abstract

Ordinarily, photomultiplier tubes are used in photometers which have a linear response, with a consequent need for switching from high to low sensitivity ranges. To prevent injury to the multiplier tube and to avoid switching to various sensitivity levels, another electronic instrument has been developed and tested.

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Document Details

Document Type
Technical Report
Publication Date
Jan 03, 1950
Accession Number
AD1211776

Entities

People

  • W. S. Jr Plymale

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Brightness
  • Calibration
  • Control Panels
  • Detectors
  • Electronics
  • Materials
  • Measurement
  • Military Research
  • Optical Detectors
  • Phosphorescent Materials
  • Photocathodes
  • Photometers
  • Photometry
  • Photomultiplier Tubes
  • Resistance
  • Resistors
  • Standards
  • Voltage

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Educational Psychology

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems