Electronic cross-level detection system
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United States of America Patent
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Jun 16, 1987
Grant Date -
N/A
app pub date -
Aug 1, 1984
filing date -
Aug 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic levelling apparatus using an inclinometer mounted to a platform for sensing deviations from the horizontal and generating an output signal representative thereof, filtering the inclinometer output signal to remove electromagnetic and radio frequency interference, level-shifting the filtered inclinometer output signal to establish both positive and negative threshold voltages, determining positive and negative voltage level shifts to generate a level control signal therefrom and transmitting the level control signal to an actuating mechanism for maintaining the platform level.
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