Patent ID: 11879792
Assignee: XELA ROBOTICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. A magnetic sensing system comprising a plurality of sensor bodies disposed along a predetermined plane and configured to generate an electrical signal according to the strength of a magnetic field that changes in response to the action of an external force, and a detection device that detects a physical quantity associated with the action of the external force from a change in the magnetic field based on the electrical signal from the sensor bodies, wherein
the plurality of sensor bodies include an offset sensor disposed so as not to be influenced by the external force and an external force detection sensor upon which the external force acts, and
the detection device specifies, from a detection result from the offset sensor, a magnetic interference amount corresponding to the strength of an interference magnetic field generated near the sensor bodies separately from a measurement magnetic field treated as a measurement target for the physical quantity, and subtracts the magnetic interference amount from a measured value obtained by the external force detection sensor to calculate the external force acting on the sensor bodies.