Line noise analysis and detection and measurement error...

Details Line noise analysis and detection and measurement error... Line noise analysis and detection and measurement error...

2009-04-08

2010-10-26

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Sample and hold

Having variable sampling rate

C341S143000, C341S155000

Reexamination Certificate

active

07821437

ABSTRACT:
A method includes sensing a process parameter to generate a sensor signal that includes a process signal and line noise components, digitizing the sensor signal at a sample rate, detecting line noise zero crossings in the sensor signal, determining a line noise frequency as a function of the detected line noise zero crossings, and adjusting the sample rate as a function of the line noise frequency to reduce an impact of line noise on the digitized sensor signal.

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