# DXF-1 series Coriolis mass flow meter

TCD series Coriolis Mass Flow Meters’ measuring principle is based on the controlled generation of Coriolis forces. The measurement would not be affected by the pressure, temperature, viscosity, density, etc. And the compensation calculation is not required. The structure contains two parts: Sensor & Transmitter. The Coriolis Mass Flow Meters are designed and manufactured based on the national standard of safe explosion proof. The Explosion- proof standard is EX d ib II C T5 Gb. The mass flow meter does not measure the volume per unit time (e.g., cubic meters per second) passing through the device; it measures the mass per unit time (e.g., kilograms per second) flowing through the device. The accuracy of the Coriolis Mass Flow Meters is ±0.1%~ ±0.2%. The application range is large. (It could be used to measure all sorts of all sorts non-newtonian fluid, slurry, suspensions, high viscosity fluid, etc.) The requirements for the installation are low. (The straight pipe requirements in front of and behind the Coriolis Mass Flow Meters are low.) They are more reliable, stable, and the maintenance level is low.

### Working principle of coriolis mass flow meter

The measuring principle is based on the controlled generation of Coriolis Forces. Figure in the quality of the δm at a constant speed v of particles revolve around a fixed point P with angular velocity omega ω movement of the pipe, the particle will receive two acceleration components: 1. The normal acceleration αr (centripetal acceleration), its value is equal to the ω 2 r, direction toward the point P; 2. The tangential acceleration of αt (coriolis acceleration), its value is equal to 2ωv, omega direction perpendicular to αr. According to Newton's second law of motion (force = mass* acceleration). If it is required to produce coriolis acceleration αr., there must be in the direction of the αt exert a corresponding force. It is equal to 2ωvδm. And this force comes from in the pipeline. Reverse the force acting on the pipeline, Fc =2ωvδm (hereinafter referred to as the coriolis force). Diagram, fluid delta m = rho A Δ x, so the coriolis force can be represented as: ΔFc=2ωvδm=2ωvρAΔx=2ωδqmΔx Type: A is cross-sectional area for the pipe δqm=δdm/dt=vρA For a specific rotating pipe, its frequency characteristic is certain, Δ Fc only depends on the δqm, therefore, directly or indirectly measured flow in the rotating pipe of the coriolis force imposed by the fluid can be measured mass flow rate, this is the basic principle of coriolis mass flow meter.

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