Reference line setting system for grid pattern recorders

Details Reference line setting system for grid pattern recorders Reference line setting system for grid pattern recorders

1988-10-14

1990-04-10

Reynolds, Bruce A.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346 76PH, G01D 900

Patent

active

049164627

ABSTRACT:
When selecting a coordinate grid pattern within which to record data on a chart, a line of such grid pattern is selected as a reference line recordable by one of the elements of a recording head. A reference level corresponding to that reference line is provided. One heating element is ranked in terms of position across the thermal recording head. A discrepancy in ranking between that one heating element and a heating element of the recording head with which the reference level is recorded on the chart is noted. A shifting in ranking pursuant to such a noted discrepancy is effected until the heating element with which the reference level is recorded and the above mentioned one heating element with which the reference line of the grid pattern is recorded have become identical.

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