Patent · US Expired

Monitoring apparatus

US4319147A · kind A · utility

0Cited by
5References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 17, 1980
Grant dateMar 9, 1982
Priority date
Expiry dateJan 17, 2000

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R19/165
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Monitoring apparatus for producing an output in response to a predetermined condition comprising bistable means (4) having a set input, a reset input and an output; trigger means (2, 6) for applying a first train of pulses (.phi..sub.1) to one of the inputs of the bistable means and for applying a second train of pulses of the same frequency as and different phase to the first train of pulses to the other input of the bistable means in response to a predetermined condition: and an output device (8) responsive to oscillation of the bistable means between its stable states.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.