Universal sensor interface for machinery monitoring system
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United States of America Patent
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Mar 19, 2019
Grant Date -
Feb 2, 2017
app pub date -
Sep 23, 2016
filing date -
Jul 23, 2015
priority date (Note) -
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Abstract
A universal sensor interface for a machine data acquisition system includes a sensor power control circuit that: (1) provides a fast and accurate limiting response to a short-circuit fault, (2) survives and automatically recovers from multiple concurrent continuous short-circuit faults with no interruption to the electrical and thermal integrity of the acquisition system, (3) reduces power consumption/dissipation when in a faulted condition, (4) isolates adverse effects of a faulted channel from uninvolved channels, (5) isolates adverse effects of loose wiring termination “chatter” from uninvolved channels, (6) protects against adverse effects resulting from “hot wiring” of sensors, (7) protects the acquisition system against reasonably anticipated installation wiring errors, and (8) minimizes the availability of spark-inducing energy to the data acquisition system.
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