Method for filtering digital signals in a pressure transmitter

Details Method for filtering digital signals in a pressure transmitter Method for filtering digital signals in a pressure transmitter

1993-12-17

1995-01-10

Mai, Tan V.

Boots, shoes, and leggings

364602, G06F 1531, G06J 100

Patent

active

053813553

ABSTRACT:
A method for filtering digital signals in a pressure transmitter. The transmitter includes a microprocessor. In each operating cycle of the microprocessor included in the transmitter, the method determines if there are any noise spikes in the signal at the input to the microprocessor representative of pressure and provides rejection for such spikes. The method also provides for a faster response to a step change in pressure than is provided by conventional filtering methods and also dampens small fluctuations in the filtered output signal.

REFERENCES:
patent: 5140543 (1992-08-01), Tanaka
patent: 5142170 (1992-08-01), Tkacik
patent: 5150317 (1992-09-01), Countryman

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