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2 128 818

(13)

C1

(51)

IPC

(21) (22)

Application

95100247/28, 1995-01-10

(22)

Actual filing date

1995-01-10

(45)

Published

1999-04-10

(72)

Inventor

Kapranov B.I.Maklashevskij V.Ja.

(73)

Holder

Vojskovaja Chast'

DEVICE FOR MEASUREMENT OF CONDUCTING COATING THICKNESS WITH DIRECT READING Russian patent published in 1999 - IPC

Abstract RU 2128818 C1

FIELD: nondestructive testing. SUBSTANCE: device has generator, eddy-current resonance converter, digital storage unit, analog-to-digital converter, and indicator. Generator frequency control unit introduced into device compensates for reduction of output signal amplitude of eddy-current converter due to time and temperature variations of resonance circuit quality factor. Device also includes analog storage unit, reference level setting unit, unbalance amplifier, and generator amplitude control unit which allows compensation of supply voltage variation. EFFECT: enhanced control efficiency. 3 dwg

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RU 2 128 818 C1

Authors

Kapranov B.I.

Maklashevskij V.Ja.

Dates

1999-04-10—Published

1995-01-10—Filed

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