Method of sensor multiplexing for rotating machinery

Details Method of sensor multiplexing for rotating machinery Method of sensor multiplexing for rotating machinery

2007-04-13

2010-11-09

Raymond, Edward (Department: 2857)

Data processing: measuring, calibrating, or testing

Testing system

Including multiple test instruments

Reexamination Certificate

active

07831406

ABSTRACT:
Controlling a multiplexer for switching between probes of a microwave sensor. The multiplexer is used to select one of the probes at any one time of operation of the sensor. Signal processing constants are updated for the selected probe. One or more signal conditioning devices are adjusted to optimize signal noise levels and dynamic range for the probe. The transmit frequency is set for the probe. Upon expiration of a transition period, a data acquisition operation or measurement operation is conducted with the probe. In turn, a time for switching to the next probe is calculated and applied prior to enabling the multiplexer to switch to another probe. These tasks are completed steps for each of the remaining probes of the microwave sensor and then repeated again for continuing operation of the sensor.

REFERENCES:
patent: 6489917 (2002-12-01), Geisheimer et al.
patent: 7084369 (2006-08-01), Sosnowski

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