US 12,228,426 B2
Method and system of one tactile sensor
Jiaoming Qiu, Maple Grove, MN (US); and Kevin Haocheng Qiu, Maple Grove, MN (US)
Filed by Jiaoming Qiu, Maple Grove, MN (US); and Kevin Haocheng Qiu, Maple Grove, MN (US)
Filed on Apr. 24, 2023, as Appl. No. 18/305,377.
Prior Publication US 2024/0353239 A1, Oct. 24, 2024
Int. Cl. G01D 5/14 (2006.01)
CPC G01D 5/14 (2013.01) 8 Claims
OG exemplary drawing
 
1. A method for detecting contact or touch, comprising:
the detection of a first level of magnetic field via a device comprising a substrate with a plurality of magnetic sensors configured for sensing a magnetic field generated by a ferromagnet in proximity to the magnetic sensors;
the coating of the magnetic sensors with an elastomer matrix with the ferromagnet embedded in it;
the displacement of the ferromagnet due to the deformation of the elastomer matrix upon contact or touch with an external object;
the detection of a second level of magnetic field via the device;
and the calculation of the displacement of the ferromagnet using a predefined algorithm.