Flow meters and related systems and methods

Flow meters may include a body defining a fluid channel therein. At least one structure may be positioned within the fluid channel, and fixed relative to the body, that is shaped and positioned to produce a flow induced vibration that varies according to a rate of fluid flow through the fluid channel. A method of measuring a fluid flow rate may include directing a fluid over a first structure located in a first channel, and producing a first flow induced vibration that varies according to a rate of fluid flow in a first channel with the first structure. The method may further include measuring the vibration of a remote structure coupled to the first channel, and determining the rate of fluid flow in the first channel from the measured vibration.