In Part 1 of this series, we covered the fundamental concepts and principles incorporated by flow meters along with various flow measurement methods used in mechanical flow meters. Part 2 covers the ...

The majority of flow meters with a pulse output use a rotating element with internal magnets. These magnets trigger a solid-state sensor giving a pulse output proportional to the liquid flow rate.

[Nubmian] wrote in to share his experiments with measuring airflow in an HVAC system. His first video deals with using with ultrasonic sensors. He found an interesting white paper that described ...