Air flow measurement

Details Air flow measurement Air flow measurement

2011-08-30

2011-08-30

Caputo, Lisa M (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

C073S861420, C454S254000, C454S255000

Reexamination Certificate

active

08006571

ABSTRACT:
An arrangement for measuring air flow includes a source of measurement values and a processing unit. The source of measurement values is operable to generate measurement values representative of a difference in pressure from air obtained on a first side of an obstruction and air obtained on a second side of the obstruction. The processing unit is configured to, in one case, convert any negative measurement values of the measurement values to a less negative value. The processing unit is further configured to perform low pass filtering on the measurement values and convert the filtered measurement values to a flow value.

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Chinese Office Action for counterpart application.

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