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(19)

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2 018 146

(13)

(51)

IPC

(21) (22)

Application

4622947/21, 1988-12-20

(22)

Actual filing date

1988-12-20

(45)

Published

1994-08-15

(72)

Inventor

Novikov O.I.Sobolev Ju.V.

(73)

Holder

Ural'Skoe Otdelenie Vserossijskogo Nauchno-Issledovatel'Skogo Instituta Zheleznodorozhnogo Transporta

METHOD OF CHECKING OPERATING STATE OF SMOOTHING FILTER Russian patent published in 1994 - IPC

Abstract RU 2018146 C1

FIELD: measurement technology. SUBSTANCE: method of estimating an operating state of a smoothing filter involves comparing harmonic parameter values measured at predertmined obtained ratio of dc Voltages with harmonic voltage parameter values normalized at the same ratio. EFFECT: enhanced normalization accuracy. 3 dwg

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RU 2 018 146 C1

Authors

Novikov O.I.

Sobolev Ju.V.

Dates

1994-08-15—Published

1988-12-20—Filed