Mass airflow measuring system for a building having a sensor assembly mounted to an interior wall of an air conduit

摘要

A mass airflow measuring system includes an air conduit and a sensor assembly mounted to the air conduit, including a unitary one-piece first section which in cross section defines a first channel, a second channel and a wall separating the two channels. A second section has similar components. A unitary one-piece corner section, in cross section includes four legs, each defining a respective channel. A respective leg is mounted in a respective one of the channels of the first and second sections to communicate the sections with each other through the channels defined in the corner section legs. A sensor housing is mounted to one of the sections and includes an inlet opening communicating with the first channel and an exit opening communicating with the second channel. A mass airflow sensor communicates with a sample channel defined in the housing.