A simple to realise micro-liquid flow sensor with high sensitivity is
presented. The sensor is based on well known thermal anemometer princi
ples. An analytical model for the sensor behaviour applicable for gas/
liquid fluids is presented. The realisation process of the sensor is d
escribed. Model and experimental results agree well. The sensor is sim
ple to integrate with other micro-liquid handling components such as p
umps, mixers, etc.