This lecture covers the operation of Coriolis mass flow sensors, which measure fluid flow by detecting the Coriolis force experienced by fluid moving inside a vibrating tube. The sensitivity of the sensor depends on the tube's parameters and is calibrated for accurate measurements. The disruption of the vibration mode in the tube is proportional to the mass flow rate, allowing for precise flow measurement. Additionally, the lecture discusses the application of these sensors for two-phase fluids, density measurement, and the impact of obstacles on flow sensors.