Disposable Water Flow Sensors

    POSIFA Microsystems now provide disposable water thermal flow sensors with outstanding performance.  

     Medical instrumentation has recently been moved outside the hospital and clinic into the home to help keep health care costs down whilst providing a better level of care. Sensors are an important part of the new technology for allowing this to happen.

     At the present, POSIFA’s thermal flow sensors are mainly used for air flow determination in human respiration. However an increasing demand is observed for liquid measurements in smallest flow ranges for medical applications. 

     Compared with traditional flow sensors, the thermal flow sensors have the advantages of highly precise measurement and high repeatability, short response time, low power consumption, smallest dimensions, adhesive-free packaging and low-cost. 

     On the market there are only micro pump systems available that work in a controlled but not in a regulated mode. This means that an extrinsic disturbance will lead to a falsification of the flow rate. It is not feasible that those systems run under disturbance free conditions. Therefore for small, cheap and especially regulated measurement our thermal flow sensor is a satisfying solution.