Tömegáramszenzorok

Tömegáramszenzorok, commonly known as mass flow sensors, are devices that measure the mass of a fluid passing through a pipe or conduit per unit of time. Unlike volumetric flow meters, which measure the volume of fluid, mass flow sensors directly determine the mass flow rate, irrespective of changes in temperature, pressure, or density. This makes them particularly useful in applications where fluid properties can vary significantly.

There are several types of mass flow sensors, each operating on different principles. Coriolis mass flow meters are a prominent type, utilizing the Coriolis effect. As a fluid flows through vibrating tubes, it experiences a phase shift due to inertia, which is directly proportional to the mass flow rate. Thermal mass flow meters are another common type. These sensors typically involve a heated element and a temperature sensor. The rate at which heat is carried away by the flowing fluid is related to its mass flow rate. Other technologies include differential pressure meters combined with temperature and pressure compensation, and positive displacement meters that can be calibrated to indicate mass flow.

Mass flow sensors find wide applications across various industries. In the automotive sector, they are crucial for engine management systems to control fuel injection and optimize combustion. In the chemical and petrochemical industries, they are used for precise metering of reactants and products, ensuring process efficiency and safety. The aerospace industry employs them for fuel flow measurement, and in the medical field, they are used in respiratory equipment to monitor patient breathing. Their ability to provide accurate mass flow measurements in dynamic conditions makes them indispensable for process control, monitoring, and optimization.