As done in literature [1], the gas velocity in the retort was measured through a
thermal anemometer equipped with a customized control device system.
This may be a pitot array or
thermal anemometer array.
It might also be desirable to augment the PIV measurements with
thermal anemometer measurements in the regions of higher velocity well above the patient, where a
thermal anemometer will still be relatively accurate, especially to investigate the turbulence levels.
The airflow sensor incorporates the same
thermal anemometer technology used by service technicians (certifiers) to annually verify a user's biological safety cabinet's airflow performance.
TOLLS & [ILLUSTRATION The Articulating
Thermal AnemometerA
thermal anemometer equipped with a customized control device system was adopted for the measurement of gas flow velocities in the retorting zone.
A multichannel low-velocity
thermal anemometer with omnidirectional velocity transducers was used to perform mean velocity, turbulence intensity, and air temperature measurements at several points in the room.
Multi-channel low velocity
thermal anemometer with five omni-directional velocity probes (SENSOR-ELECTRONIC HT-400) was used to perform measurements of velocity field in the personalized airflow.
Because the flow meter is not self-correcting for temperature and humidity as with an electronic
thermal anemometer, you will need to know the air temperature, humidity and barometric pressure.
Usually, a
thermal anemometer also includes a sensor for the fluid temperature and a bridge circuit to compensate for temperature variations.
At present, a
thermal anemometer with an omnidirectional velocity sensor is most often used in practice due to its low price and easy and convenient operation.