mass flow sensors utilize heat transfer principles to determine the flow
velocity of a fluid. As fluid passes across the sensor, heat is carried from
the sensor to the medium. This relationship is dependent upon the flow rate.
As flow increases, so does the amount of heat that is transferred. By knowing
the temperature of the medium, the flow rate can be determined from the amount
of voltage compensation needed to maintain a constant temperature differential.
film mass flow sensors offer solutions for a wide variety of flow applications.
The thin film and membrane technologies incorporate highly accurate temperature
sensors and heaters as core elements of the sensors. IST
flow sensors are applicable in both gas and partially in liquid, have an
operating temperature range of -30°C to +450°C, and can measure flow
rate and direction from 0.0001m/s (microflowSens) to 100m/s (respectively from
1mL/min to 10L/min). In addition to measuring flow rates, our liquid sensors
can detect the presence of a liquid, biofilm, or bubbles, as well as indicate