#WishIknew How does a Coriolis flow meter work?


How does a Coriolis flow meter work?

I wish I knew how does a Coriolis flow meter work when I was starting my career! Below you have a few quick answers.

A Coriolis flow meter can have either twin measuring tubes or a single measuring tube. The meter uses a drive coil to vibrates the tube(s), and pickoffs at each end measure the vibrations.

How does a Coriolis flow meter work?
Courtesy of Yokogawa

With zero flow, the vibrations are similar. But with flow, the tube(s) will reflect the Coriolis effect and show a time difference between the pickoffs. This difference is directly proportional to the mass flow rate. Also, when you have a density change, it affects the resonance. Higher density creates a lower resonance, and low density a high resonance.

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