Flow Sensors

Thin Film RTD Temperature Sensors Capacitive Humidity Sensors Mass Flow Sensors Conductivity Sensors Biosensors Application Development
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Thermal Mass Flow SensorMeasurement Principle

Thermal 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.

Product Overview

IST thin 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 liquid level .

Development channels guarantee the best possible adaptation of our sensors to the requirements of your application, whether in terms of dynamic range, response time, directional detection or ambient conditions. Connecting options such as different wires, solutions on flexible substrates or injection-molded encapsulations are available (denoted by letter A).

Application Services

Need some help with your application development? Our technical teams can offer you consulting, development, and production assistance for your project.

Product Selection

Gas Flow Sensors

Product
(Links to PDF)
Meas. Range
(m/s)
Sensi-tivity
(m/s)
Indicates Flow
Direction
Temp Range
(°C)
Response Time   Buy Online
FS2 0 to 50 0.001 Yes -20 to 150 < .5s  
FS5 0 to 100 0.01 -20 to 150 (450) ~ 160ms
FS7 0 to 100 0.01 -20 to 150 ~ 200ms
MFS02 0 to 1.5 0.0003 Yes -40 to 160 < 10ms MFS02
MFS02 on PCB Standard 0 to 1.5 0.0003 Yes -40 to 160 < 10ms MFS02 on PCB Standard
MFS02 on PCB Exposed 0 to 1.5 0.0003 Yes -40 to 160 < 10ms MFS02 on PCB Exposed
Sensors in Tray