Patent ID: 8258778

Claim:
A simplified micro magnetic sensor (MMS) for acceleration, position, tilt, and vibration comprising: a primary winding and a secondary winding wherein the primary winding has two primary input terminals and the secondary winding is wound with two secondary differential output terminals SDOT-1 and SDOT-2; and a magnetically permeable dynamic media element (MPDME) placed near both the primary winding and the secondary winding so as to effect a transformer coupling there between in that, upon connecting the primary input terminals to an external single frequency drive signal source, a phase-based differential output signal PDOS is generated between SDOT-1 and SDOT-2 and, upon a movement of the MPDME due to acceleration, position, tilt or vibration, the MPDME causes a corresponding response of the PDOS; where the MPDME comprises: a sealed nonmetallic coil tube enclosed by both the primary winding and the secondary winding but insulated there from; and a sensor core, disposed inside the coil tube for a free sliding movement along its axis under an inertial force, made of a magnetically permeable material whereby the MPDME causes a corresponding response of the PDOS through a movement of the sensor core.