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(11)

2 085 736

(13)

C1

(51)

IPC

(21) (22)

Application

94024574/03, 1994-06-29

(22)

Actual filing date

1994-06-29

(45)

Published

1997-07-27

(72)

Inventor

Kulakov G.I.Markov V.A.Jakovitskaja G.E.

(73)

Holder

Institut Gornogo Dela So Ran

DEVICE FOR RECORDING ELECTROMAGNETIC RADIATION OCCURRED AT FISSURING OF ROCKS Russian patent published in 1997 - IPC

Abstract RU 2085736 C1

FIELD: MINING INDUSTRY. SUBSTANCE: it is used for control of rock mass sections at changing their stressed and deformed conditions. Device for recording electromagnetic radiation has ferrite toroidal core, generator winding in the form of single-conductor screened wire wound on core, and measuring winding located in clearance of winding. Screening sheathing of generator winding wire has clearances of height which is equal to wire diameter, and they are located at distance π/2 from center of measuring winding where located between turns of generator winding are additional turns of measuring winding. Clearance of generator winding is as long as 0.167-0.195 π. EFFECT: high efficiency. 1 dwg

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RU 2 085 736 C1

Authors

Kulakov G.I.

Markov V.A.

Jakovitskaja G.E.

Dates

1997-07-27—Published

1994-06-29—Filed

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