Automatic graphing apparatus

Details Automatic graphing apparatus Automatic graphing apparatus

1974-04-04

1976-06-22

Hartary, Joseph W.

Recorders

Combined with external recorder operating means

Well logging

23515135, 346 13, 346 62, 356105, G01D 104

Patent

active

039654770

ABSTRACT:
Apparatus for producing a graph of a function represented by a varying analogue input signal supplied to the apparatus, comprising display means adapted to display in a graphing operation the graph of the function, calculating means adapted to receive the analogue input signal and to calculate the value of a parameter of the function, and control means operable to interrupt the operation of the display means at preselected points in the graphing operation and to cause the display means to display the value calculated by the calculating means and thereafter to resume the graphing operation.

REFERENCES:
patent: 2134581 (1938-10-01), Rowell
patent: 3051898 (1962-08-01), Eynon
patent: 3573843 (1971-04-01), Solley
patent: 3681774 (1972-08-01), Harris et al.
patent: 3706877 (1972-12-01), Clifford

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