Patent ID: 6629447
Filing Date: 2003-10-07
Classification: G01F

Abstract:
A magnetically coupled, small volume, positive displacement, multi-axial, isokinetic, fully automatic flow sensor calibrator/prover device comprising: a series of multiple interconnected cylindrical flow tubes arranged radially around a volume detector rod that houses a series of volume detector sensors; a magnetically coupled volume detector actuator device with outer elements oscillating coaxially to each flow tube, said outer elements connected to an inner, common, center element with an integral volume detector sensor initiator element, and dynamic centering elements, which said inner, common, center element oscillates coaxially with the volume detector rod; the series of volume detector sensors located in the volume detector rod and activated sequentially by the volume detector sensor initiator element, the spacing between said sensors defines a pre-calibrated, incremental displaced volume amount of calibration fluid in a section of each flow tube, and a comparison of elapsed time between two or more of said sensors during a calibration cycle/pass is integral to monitoring for magnetic coupling integrity; a cylindrical, convoluted, magnetically coupled displacer with imbedded magnet(s) and anti-compression spring(s), the displacer emitting an omni-directional magnetic field, said displacer flowing freely inside the flow tubes, said displacer propelled at a constant velocity by an introduction of calibration fluid flow, while the displacer sequentially, isokinetically, dispenses the pre-calibrated, incremental displaced volume amount of calibration fluid through one or more test flow sensor(s), while said displacer is in continuous unidirectional transit from, and to, an inline automatic launching/receiving station.