G - Physics – 01 – J
Patent
G - Physics
01
J
354/159
G01J 3/42 (2006.01) G01J 1/18 (2006.01) G06G 7/161 (2006.01)
Patent
CA 1062812
\ CONTINUOUSLY MONITORING RATIOMETER ABSTRACT OF THE DISCLOSURE An analytically significant ratio between time- varying magnitudes of signals is periodically monitored in recurring cycles which are each synchronized with a frequency generator. During every monitoring cycle, each signal relating to the numerator and denominator of the ratio, is integrated separately for a fixed number of generator cycles. Thereafter in each monitoring cycle, the output from the integrator of the denominator signal is applied at the input to the integrator of the numerator signal and the time taken by the latter to integrate back to its starting level is measured in proportion to the ratio of the signals. Either digital or analog time measurements may be utilized and the number of generator cycles over which the ratio is determined may include transition periods between each stage of integration.
252844
Perkin-Elmer Corporation The
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