skip to main content

Title: Period meter for reactors

An improved log N amplifier type nuclear reactor period meter with reduced probability for noise-induced scrams is provided. With the reactor at low power levels a sampling circuit is provided to determine the reactor period by measuring the finite change in the amplitude of the log N amplifier output signal for a predetermined time period, while at high power levels, differentiation of the log N amplifier output signal provides an additional measure of the reactor period.
  1. (Downers Grove, IL)
Publication Date:
OSTI Identifier:
Report Number(s):
US 3931522
US patent application 05/509,971
DOE Contract Number:
Resource Type:
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
period; meter; reactors; improved; log; amplifier; type; nuclear; reactor; period; meter; reduced; probability; noise-induced; scrams; provided; reactor; power; levels; sampling; circuit; provided; determine; reactor; period; measuring; finite; change; amplitude; log; amplifier; output; signal; predetermined; time; period; power; levels; differentiation; log; amplifier; output; signal; provides; additional; measure; reactor; period; reactor period; reactor period; reactor period; predetermined time; power levels; power levels; power level; power level; nuclear reactor; output signal; output signal; time period; amplifier output; amplifier output; type nuclear; period meter; period meter; reduced probability; signal provide; determined time /376/250/976/