Vibration Sensor Device For Musical Instruments

摘要

The present invention relates to a sensor device (2) for measuring a movement and/or a vibration of at least one object of interest, in particular for musical instruments, said device comprising (i) at least two excitation inductance coils (11, 12) electrically connected to at least one electric excitation source, and capable of generating excitation magnetic fluxes, and (ii) at least one measuring inductance coil (13), electrically connected to electrical measuring means capable of measuring induced electrical signals, (iii) a magnetic circuit (10) magnetically connecting the excitation coils (11, 12) and measuring (13) coils, and comprising a measuring area (17) wherein the presence of objects of interest affects magnetic fluxes coming from excitation coils (11, 12) and passing through said measuring coil or coils (13), and (iv) excitation coils (11, 12) arranged in such a way as to generate, in the absence of an object of interest in the measuring area (17), magnetic fluxes which substantially cancel each other out in the at least one measuring coil (13). The invention also relates to a sound system implementing said device.

主权项

1. A sensor device for measuring a movement and/or a vibration of at least one object of interest, in particular for musical instruments, comprising:
at least two excitation inductance coils electrically linked to at least one electrical excitation source and suitable for generating magnetic excitation fluxes, and at least one measuring inductance coil, electrically linked to electrical measuring means suitable for measuring induced electrical signals, characterized in that it also comprises: a magnetic circuit magnetically linking the excitation and measuring coils, and comprising a measurement area in which the presence of objects of interest affects magnetic fluxes originating from excitation coils and passing through said measuring coil(s), and excitation coils arranged so that in the absence of an object of interest in the measurement area, they generate magnetic fluxes which substantially balance each other out in the at least one measuring coil.