Corialis type flow meter with optical vibration sensor.

摘要

A flowmeter Coriolis mass comprising a Coriolis tube and an optical detection device, optical sensing device comprising at least one optical sensor for generating a signal that is representative of the movement of the Coriolis tube, comprising said optical detector one light source and a photosensitive detector, wherein the Coriolis tube or a projection fastened to the Coriolis tube moves through the light path between the light source and the photosensitive sensor during operation, characterized in that the device optical detection comprises means for applying a constant voltage across the photosensitive sensor during operation independently of the current generated by the photosensitive sensor in response to incident light, and means for determining the value of the current generated by the photosensitive sensor and converting it into an output signal.