Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-12-29
1978-12-19
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 83D, G01V 318, G01V 310, G01R 2500
Patent
active
041307933
ABSTRACT:
Electrical energy is induced into an earth formation by a transmitter in apparatus, adapted to be passed through a borehole traversing the earth formation. Clock pulses are also provided in the apparatus. At least two receivers provide signals corresponding to received electrical energy from the earth formation. A gating circuit provides groups of clock pulses in accordance with the signals from the receivers so that the number of clock pulses in each group corresponds to the dielectric constant of the earth formation.
REFERENCES:
patent: 3096480 (1963-07-01), Pihl
patent: 3551797 (1970-12-01), Gouilloud et al.
patent: 3553579 (1971-01-01), Teixeira
patent: 3562646 (1971-02-01), Maxwell et al.
patent: 3663956 (1972-05-01), Purdy et al.
patent: 3849721 (1974-11-01), Calvert
patent: 4012689 (1977-03-01), Cox et al.
Bridges James R.
Riedesel, Jr. Roland G.
Thompson Larry W.
Gillespie Ronald G.
Ries Carl G.
Strecker Gerard R.
Texaco Inc.
Whaley Thomas H.
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