SENSOR SYSTEM FOR MEASURING A VELOCITY OF A FLUID

摘要

The invention relates to a sensor system (102) for measuring a velocity of a fluid (110) flowing through a channel (108), comprising a heating element (104) for heating the fluid, wherein the heating element (104) is provided with a predetermined level of power during operation. The sensor system (102) furthermore comprises a primary electronic circuit (114) having a primary resonance frequency, which primary resonance frequency is temperature dependent. Herein the temperature of the primary electronic circuit (114) is determined by heat transferred from the heating element (104) to the fluid (110) flowing through the channel (108). In addition, the sensor system (102) comprises a transducer arrangement (126) configured for generating a measurement signal (128) indicative for the velocity of the fluid (110) flowing through the channel (108). Herein, the measurement signal (108) is based on the primary resonance frequency.