Calibration of Air Velocity Instruments and Systems

The calibration of air velocity measuring instruments is necessary to determine the metrological characteristics of the instrument.
The calibration process involves comparing the indications of the measuring instrument with those of a reference instrument (of the same type and sufficiently precise), appropriately varying the value of the applied quantity.

Why measure air velocity and flow rate? They are important factors to consider in an HVAC system, especially in the pharmaceutical sector where air quality is critical for the safety of people and products.

But what are the best instruments for measuring air velocity?

There are several options available for measuring air velocity and flow rate, including: 

Anemometer: an instrument that uses a small propeller to measure air velocity. 

Balometer: an instrument that uses a constant airflow to measure air flow rate. 

Thermistor: a component that uses resistance variation to measure air velocity. 

Pitot measurement: a technology that uses differential pressure to measure air velocity. 

Don't miss our in-depth analysis on airflow types in Clean Rooms.