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1 699 273

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IPC

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Application

4604393/25, 1988-11-10

(22)

Actual filing date

1988-11-10

(45)

Published

1994-07-30

(72)

Inventor

Shejnkman B.M.Podgornaja L.E.Shmidt Al.G.Shmidt An.G.Shadkhin V.I.Vlasov I.N.Shljakhova S.A.

GEOELECTRIC PROSPECTING DEVICE Russian patent published in 1994 - IPC

Abstract SU 1699273 A1

FIELD: physics. SUBSTANCE: device has synchronizer, power amplifier, well transmitting and receiving aerials, high frequency wide-band amplifier, heterodyne and mixer, intermediate frequency amplifier, amplitude detector, emitter follower, filter and test-measuring unit, connected in series. Sync signals transmitter, provided with transmitting aerial, two functional generators and frequency-modulated signal generator are brought into the device additionally. Similar change in frequency of probing signal and signal, generated by heterodyne may be provided in autonomous mode in such a way, that value of intermediate frequency keeps constant in whole range of operation frequencies. EFFECT: improved precision of measurements. 1 dwg

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SU 1 699 273 A1

Authors

Shejnkman B.M.

Podgornaja L.E.

Shmidt Al.G.

Shmidt An.G.

Shadkhin V.I.

Vlasov I.N.

Shljakhova S.A.

Dates

1994-07-30—Published

1988-11-10—Filed

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