The Use of Fiber Optics for Oscilloscope External Triggering

Abstract

The input to the external trigger circuit of an oscilloscope is normally designed to accept a remotely generated trigger signal via coaxial cable. A photodiode was installed in the input so that it accepts an optical trigger signal via a fiber optic cable. This inexpensive conversion is useful in electromagnetic interference (EMI) studies, where hard wire cable can contaminate shielded environments, and does not interfere with the oscilloscope's other triggering capabilities. The original input can be restored at any time, in the field or in the laboratory.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1972
Accession Number
AD0742677

Entities

People

  • Rudolph J. Prochazka

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cables
  • Circuits
  • Coaxial Cables
  • Connectors
  • Conversion
  • Couplings
  • Diagrams
  • Diodes
  • Electromagnetic Interference
  • Electromagnetic Radiation
  • Equivalent Circuits
  • Fiber Optics
  • Impedance
  • Oscilloscopes
  • Photodiodes
  • Radiation
  • Trigger Circuits

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Electrical Engineering
  • Optical Fiber Sensing and Electromagnetic Propagation.

Technology Areas

  • Directed Energy