NUCLEAR INSTRUMENTATION ISOLATED OUTPUT SIGNAL SCALING METHOD AND SYSTEM EMPLOYING SAME

摘要

A method (100, 200) of determining a core design parameter of a nuclear reactor (18), includes: calibrating (110, 210) an isolated voltage output from a NIS cabinet (20, 22, 24) associated with the nuclear reactor using a calibrated signal source as an input to the NIS cabinet; recording (120, 220) values of the calibrated signal source used in the calibrating and corresponding values of the output voltage from the calibrating in an as-left cabinet calibration data table; using a computing device connected to the isolated voltage output from the NIS cabinet, converting (130, 240) the voltage output signal to a converted detector signal using at least some of the values in the as-left cabinet calibration data table in an improved signal conversion equation; and using the computing device, employing (140, 260) the converted detector signal to determine the core design parameter.