US 12,449,441 B2
Velocity detection for motion conductor in magnetic field
Hans K Liu, Vernon Hills, IL (US)
Filed by Hans K Liu, Vernon Hills, IL (US)
Filed on May 8, 2023, as Appl. No. 18/313,899.
Prior Publication US 2024/0377428 A1, Nov. 14, 2024
Int. Cl. G01P 3/52 (2006.01); H04R 29/00 (2006.01)
CPC G01P 3/52 (2013.01) [H04R 29/001 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for detecting the velocity of a motion conductor moving within a magnetic field, the method comprising: Providing a sensing structure that replicates the geometry and electrical configuration of the motion conductor without requiring components that do not contribute to said emulation or to the generation of the velocity-related signal, wherein the sensing structure is constructed to emulate the electromagnetic behavior of the motion conductor relevant to velocity detection, and wherein the sensing structure is further configured to operate without the presence of a magnetic field and/or relative motion; Establishing a velocity calculation model based on the electromagnetic properties of both the sensing structure and the motion conductor, wherein the model produces a velocity computation equation that is independent of parameter variations in the motion conductor and the sensing structure; and Utilizing an electronic circuit to implement the velocity calculation model and generate a velocity signal that is directly proportional to the velocity of the motion conductor.