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Period meter for reactors

Patent ·
OSTI ID:862441
 [1]
  1. Downers Grove, IL
+ Show Author Affiliations
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.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
DOE Contract Number:
W-31109-ENG-38
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Number(s):
US 3931522
Application Number:
05/509,971
OSTI ID:
862441
Country of Publication:
United States
Language:
English

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Related Subjects

/376/250/976/
additional
amplifier
amplifier output
amplitude
change
circuit
determine
determined time
differentiation
finite
improved
levels
log
measure
measuring
meter
noise-induced
nuclear
nuclear reactor
output
output signal
period
period meter
power
power level
power levels
predetermined
predetermined time
probability
provided
provides
reactor
reactor period
reactors
reduced
reduced probability
sampling
scrams
signal
signal provide
time
time period
type
type nuclear