Patent ID: 9528821
Filing Date: 2016-12-27
CPC Classification: G01B,G01N,G02B

Claim Text:
1. An apparatus for scanning a product being manufactured in a continuous linear process comprising: two voltage generators for providing output frequencies of equal magnitude but of opposing phase; a magnetic foil with a mirrored face mounted for oscillation about a torsion axis, wherein the foil is magnetized to provide regions of opposite polarity thereon, respectively to each side of said torsion axis; an induction coil operatively associated with each of said voltage generators, each coil generating a magnetic force of alternating positive and negative polarity under the influence of said opposed phase output frequencies of the voltage generators, interacting respectively with said regions of opposite polarity thereby to provide a main magnetic driving force acting on one of said regions to oscillate the foil about the torsion axis and an opposing magnetic force acting on the other one of said regions to stabilize said oscillation and control an angular extent thereof; a light source for projecting a ray of light onto the mirrored face of the magnetic foil as the foil oscillates, thereby directing successive curtains of parallel rays across a product proceeding in a linear path of travel, wherein said successive curtains of parallel rays scan the product at the frequency of the generators; and an optical analysis device configured to analyze the format of the resulting light rays after their passage across the product, wherein such analysis provides dimensional measurements and verifies the product's surface integrity.