Abstract:
A method of measuring temperature and velocity of a fluid flow passing through a device (5, 7, 11) of a plant (1) includes the step of positioning at least two sensors (13) in the device. For each sensor (13), a traveling path (18a, 18b) for an acoustic signal (17) received from another sensor (13) is determined. Each sensor (13) emits an acoustic signal (17) at a frequency that differs from a frequency of an acoustic signal (17) to be emitted by the other sensor(s) (13) in the fluid flow. A velocity profile and temperature profile for the fluid flow based on the acoustic signals (17) received by the sensors is determined. A measurement system can include sensors (13) and a computer device (15) that can determine a velocity profile and temperature profile for a fluid flow passing through a device (5, 7, 11) based on the acoustic signals (17) received by the sensors (13). A plant (1) can be configured to implement the method or include an embodiment of the measurement system.