A mechanical oscillator activated or deactivated by a...

Details A mechanical oscillator activated or deactivated by a... A mechanical oscillator activated or deactivated by a...

G - Physics

01

N

G01N 19/00 (2006.01) G01L 7/00 (2006.01) G01L 7/06 (2006.01) G01N 17/04 (2006.01)

Patent

CA 2692073

The present invention is a mechanical oscillator for detection and measurement of corrosive or foreign materials. The elements include a means for mechanical excitation, and a mechanical oscillator, wherein said mechanical oscillator has a resonant frequency, f, and a quality factor, Q. A fuse fixed to the oscillator to change oscillator amplitude to or from essentially zero to resonance amplitude. In a preferred embodiment, the mechanical oscillator has the shape of a tuning fork where one region is compatible with the service fluid and the other region is incompatible with the service fluid or other contaminant. The sensor alarms when a measured amount of the incompatible material has been removed or the physical strength of the material has been compromised.

La présente invention concerne un oscillateur mécanique conçu pour détecter et mesurer des matériaux corrosifs ou étrangers. Les éléments comprennent des moyens d'excitation mécanique et un oscillateur mécanique, ledit oscillateur mécanique ayant une fréquence de résonance f et un facteur de qualité Q. Un fusible fixé sur l'oscillateur permet de faire varier l'amplitude de l'oscillateur d'une amplitude sensiblement nulle à l'amplitude de résonance et vice-versa. Dans un mode de réalisation préféré, l'oscillateur se présente sous la forme d'un diapason, une première région étant compatible avec le fluide de service et l'autre région étant incompatible avec le fluide de service ou un autre polluant. Un capteur signale qu'une quantité mesurée du matériau incompatible a été éliminée ou que la résistance physique du matériau a été compromise.

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