Electric current measuring mutual inductor based on mechanical wave

Application Number: 00124288
Application Date: 2000.08.23
Publication Number: 1290861
Publication Date: 2001.04.11
Priority Information: 1999/10/1 ES 9902164
International: G01R15/14;G01R19/00
Applicant(s) Name: Kemiyas Pope Univ.
Inventor(s) Name: Zhuan A.T. Martin
Patent Agency Code: 11038
Patent Agent: wang maohua
Abstract Electrical current measurement transformers that convert electromagnetic fields generated by electrical currents (1) into elastic (mechanical) waves that are transmitted through a dielectric medium (3) to a receiver (4) that converts them once again into electrical signals. As an option, at the end, an electronic unit (5) amplifies and conditions these signals, whose magnitude is related to the current in the primary circuit. The invention is configured with different types of transformers depending on the type of magnetic field/force converter of the elastic waves (permanent magnet, ferromagnetic core, coil, or magnetostrictive material), and the forces that are transmitted (traction/compression, rotation, and flexion).