Method and device for eliminating interference on electronic compass
An electronic compass, interference current technology, applied in the direction of measuring devices, instruments, surveying and navigation, etc., to achieve the effect of overcoming interference, flexible placement, and accurate pointing
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[0048] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0049] figure 2 It is a schematic block diagram of the calibration method of the electronic compass provided by the present invention, such as figure 2 shown, including:
[0050] Step S201: Detect the interference current in the terminal PCB wiring.
[0051] Specifically, firstly, the detection resistor is connected in series in the terminal PCB trace, and the voltage value at both ends of the detection resistor connected in series in the terminal PCB trace is collected, and then the voltage value at both ends of the detection resistor and the resistance value of the detection resistor are used to , to obtain the current value of the interference curr...
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