ALARM DELAY SYSTEM FOR IMPULSPHYSIK GMBH VIDEOGRAPH B FOG DETECTOR.

Abstract

An alarm delay system has been developed for installation in the IMPULSPHYSIK GmbH VIDEOGRAPH B Fog Detector. This system provides certain time control over the reduced visibility alarm signal leaving the detector. It places a minimum on the length of time a period of reduced visibility must exist before an indication of 'fog' is allowed to leave the detector. In addition, it ensures that, once a 'fog' indication has been actuated, it will remain for a certain minimum period. An instruction manual and installation instructions are presented for the new system. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1967
Accession Number
AD0822691

Entities

People

  • K. D. Urfer

Tags

DTIC Thesaurus Topics

  • Detectors
  • Instruction Manuals
  • Instructions
  • Visibility
  • Warning Systems

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Mathematics or Statistics