What is the Coriolis force? Cory Oddo flowmeter principle?
When a particle of mass m moves at a velocity V in a pipe rotating at an angular velocity of P on the axis, the particle is subjected to acceleration and force of two components:(1) normal acceleration, that is, the centripetal acceleration alpha R, whose magnitude is equal to 2 Omega R, toward the P axis;(2) the tangential angular velocity of a T, namely the Coriolis acceleration, its value is equal to 2 Omega V, and a r vertical direction. Because of complex motion in a T direction Coriolis force acting on the particle of Fc=2. Vm, a pipeline effect of reverse force on the particle Vm -Fc=-2.When the density of the fluid in the pipe P rotating at a constant speed of V flow, pipeline length of delta x will be a tangential Coriolis force: Delta Fc Delta Fc=2 delta omega V P A x (1)In the formula, the flow cross section of A - pipeline.
Mass flow measurement principleA mass flowmeter's metering system consists of a sensor and a transmitter for signal processing. Mass flowmeter is based on Newton's second law: force = mass x acceleration (F=ma)
Coriolis mass flowmeter (Coriolis mass flowmeter, referred to as CMF), made the principle of Coriolis force and the mass flow rate is proportional to the fluid flow through the pipeline by using vibration when, with high precision, reliable operation, less maintenance and wide applicable medium, has been widely used in industrial production and trade measurement fields.By pipeline is through the vibration of the Coriolis force by force.
