See Also: flow meter(encyclopedia)
Peak flow meter(health)
meter(medicine)
gas meter(dictionary)
meter(3)(dictionary)
meter(4)(dictionary)
meter(2)(dictionary)
meter(dictionary)
stethogonio meter(medicine)
ventilation meter(medicine)

flow meter (sh)




Device that measures the velocity of a gas or liquid.

It has applications in medicine as well as in chemical engineering, aeronautics, and meteorology. Examples include pitot tubes, venturi tubes, and rotameters (tapered graduated tubes with a float inside that is supported by the flowing fluid at a level that depends on the flow rate). Ultrasonic flow meters, in which reflecting ultrasound off a flowing liquid leads to a Doppler shift (see Doppler effect) that is calibrated to provide the flow rate of the liquid, have important industrial applications and have also been used to measure arterial blood flow.