Communications: electrical – Continuously variable indicating – With meter reading
Patent
1982-07-30
1985-06-11
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
367 20, H04Q 900, G01V 122
Patent
active
045231915
ABSTRACT:
A device is provided for interconnecting a series of data acquisition apparatuses. Each of the apparatuses collect signals and transmit them to a remote central receiving and recording system. In order to sequentially transmit the signals thereto on reception of an order from said central system, the apparatuses are subdivided into a plurality of groups having the same number m of apparatuses. The groups comprise cable sections of substantially equal length interconnecting the acquisition apparatuses in such a manner that the apparatuses of the same rank of each group are connected in parallel by the same transmission cable to the central system.
REFERENCES:
patent: 3441902 (1969-04-01), Savit
patent: 4016369 (1977-04-01), Pedersen
patent: 4091358 (1978-05-01), Bayhi
patent: 4253087 (1981-02-01), Saal
patent: 4398271 (1983-08-01), Cretin et al.
Beauducel Claude
Cretin Jacques
Compagnie Generale de Geophysique
Institut Francais du Pe'trole
Yusko Donald J.
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