Flow meter filter system and method
First Claim
1. A method of removing noise from a flow meter signal, comprising the steps of:
- receiving the flow meter signal generated by a flow meter;
applying a first damping value to the flow meter signal in order to produce a filtered flow meter signal if the flow meter signal is substantially quiescent; and
applying a second damping value to the flow meter signal that is less than the first damping value in order to produce the filtered flow meter signal if the flow meter signal is experiencing a transition, wherein the filtered flow meter signal represents one or more fluid characteristics of a flow material in the flow meter.
0 Assignments
0 Petitions
Accused Products
Abstract
A flow meter filter system (200) according to an embodiment of the invention includes a noise pass filter (203) configured to receive a first version of a flow meter signal and filter out the flow meter data from the flow meter signal to leave a noise signal, a noise quantifier (204) configured to receive the noise signal from the noise pass filter (203) and measure noise characteristics of the noise signal, a damping adjuster (205) configured to receive the noise characteristics from the noise quantifier (204) and generate a damping value based on the noise characteristics, and a filter element (206) configured to receive a second version of the flow meter signal and receive the damping value from the damping adjuster (205), with the filter element (206) being further configured to damp the second version of the flow meter signal based on the damping value in order to produce a filtered flow meter signal.
35 Citations
9 Claims
-
1. A method of removing noise from a flow meter signal, comprising the steps of:
-
receiving the flow meter signal generated by a flow meter; applying a first damping value to the flow meter signal in order to produce a filtered flow meter signal if the flow meter signal is substantially quiescent; and applying a second damping value to the flow meter signal that is less than the first damping value in order to produce the filtered flow meter signal if the flow meter signal is experiencing a transition, wherein the filtered flow meter signal represents one or more fluid characteristics of a flow material in the flow meter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification