Title :
An automated AC-DC transfer calibration system
Author :
Filipski, Piotr S. ; Rinfret, Robert L.
Author_Institution :
Inst. for Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, Ont., Canada
fDate :
4/1/2000 12:00:00 AM
Abstract :
Improvements in the National Research Council of Canada (NRC)´s ac-dc transfer capabilities have been achieved through full automation of the ac-dc transfer comparator, extensive redesign of the control software, and modification of the voltage buildup procedure. Hardware additions to the comparator design include stepping motor-driven switches and a range changer of a commercial electronic transfer standard. Redesigned software can be easily modified to accept new instruments and new procedures. The NRC voltage buildup procedure has been modified at the 500- and 1000-V levels. The expanded uncertainty assigned to the NRC working standard is given, and its components are briefly discussed
Keywords :
AC-DC power convertors; automatic test equipment; calibration; transfer standards; voltage measurement; 1000 V; 500 V; NRC voltage buildup; National Research Council of Canada; automated AC-DC transfer calibration; electronic transfer standard; range changer; stepping motor-driven switches; uncertainty; Calibration; Councils; Hardware; Instruments; Measurement standards; Relays; Switches; Testing; Voltage measurement; Voltmeters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
