Compact multi-user multi-stage multi-target magnetic tracking system
A magnetic tracking, magnetic field technology, applied in the field of magnetic tracking systems, can solve problems such as inapplicability, achieve the effect of less calibration, reduce complexity, and eliminate the need for coil alignment and balance
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[0022] Figure 1A Shown is a magnetic tracking system 100 comprising a transmitter 101 (Tx), which can be any device with a conventional three-axis coil, and a receiver 102 (Rx), which is used to sense 101 generated magnetic field. In this embodiment and subsequent embodiments described herein, the transmitter 101 is stationary and the receiver 102 (hereinafter also referred to as "target") is tracked by the transmitter 101 . Receiver 102 may include any device having a three-axis magnetometer (eg, coils, Hall sensors, magnetoresistive (MR) sensors). The location (x, y, z) of the receiver 102 is calculated from the sensed magnetic field using techniques known in the art. The specific implementation of the triaxial coils in the transmitter 101 requires significant engineering effort to ensure coil alignment, coil balance and calibration. More importantly, a three-axis coil transmitter design may not be an option in applications requiring a housing with a thin or flat form fac...
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