Chart recorders
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United States of America
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May 21, 1985
Grant Date -
N/A
app pub date -
Jan 21, 1982
filing date -
Oct 5, 1977
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a potentiometric chart recorder, the speed of the chart motor 22 is, in one mode of operation (AUTO) selected by a switch 32, varied between two values in dependence upon the rate of change or slope of the input signal at 10 as detected in a detector 30. The slow speed is obtained by intermittent operation at the fast speed, and during the non-operative periods power-consuming circuitry e.g. 16, 18, 26 is switched off by a switch 40.
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