G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 15/00 (2006.01) G01D 7/00 (2006.01) G01R 19/25 (2006.01)
Patent
CA 2414750
A meter includes an EEPROM storing a scaling factor; a divider providing a first analog voltage from an electrical system; an analog to digital converter (ADC) converting the first analog voltage to a first digital value; and a processor. The processor includes a first routine calculating the scaling factor; an input circuit for the first routine, and a second routine retrieving the scaling factor from the EEPROM and adding the scaling factor to the first digital value to provide a sum for a display. The first routine calculates the scaling factor by subtracting a second digital value from a larger third digital value, which represents a nominal voltage value. The second digital value is converted by the ADC from a second analog voltage from the divider, that receives a larger third analog voltage representing the nominal voltage value.
Bandura Mieczyslaw
Dabrowski Henryk Jan
Funke James
Ghanem Mahmoud
Ha Chi Thuong
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Corporation Eaton
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