G - Physics – 01 – R
Patent
G - Physics
01
R
324/23
G01R 19/00 (2006.01) C25C 3/20 (2006.01) G01N 27/416 (2006.01)
Patent
CA 1159516
ABSTRACT OF THE DISCLOSURE A backelectromotive force of an aluminum electroly- sis cell is measured by the steps of: (a) repeatedly measuring voltage V and current I of the cell at a short interval; (b) forming groups of data each including measured values thus obtained within a relatively short period; (c) calculating a constant e and its variance Ve with reference to each data group according to a linear regression expressed by an equation: V = r?LI + e where r represents an internal resistance of the cell; (d) calculating a backelectromotive force E and its vari- ance VE at a given time based on the constant e and its variance Ve calculated at the step (c), a backelectro- motive force E1 and its variance V1E with reference to a data group preceding the given time and a constant VT, and according to the following equations: P = (V1E + VT)/(Ve + V1E + T) E = P?e + (1 - P)?E1 VE = P2?Ve + (1 - P)2 ?(V1E + VT); and (e) repeating the steps (b), (c) and (d) at a re- latively short interval.
401867
Macrae & Co.
Mitsubishi Keikinzoku Kogyo Kabushiki Kaisha
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