Jun 9, 2020 — The biggest issue with large hard - iron offsets is that you might saturate the supported range of the magnetometer with this offset. Soft- iron ... Read more

Oct 24, 2018 — The source of a local permanent magnetic field can be a piece of hard iron (hence the common name), a constant DC current, or some other type of ... Read more

by T Lapucci · 2021 · Cited by 10 — In this paper, a solution is presented for carrying out the magnetic calibration of a COTS (Commercial Off the Shelf) digital compass without sensor motion. Read more

Hard iron sources of error include wires carrying electric current, which result in changes in the earth's magnetic field, permanent magnets, etc. A speaker ... Read more

by D Yang · 2016 · Cited by 4 — Abstract: This paper presents a zero-crossing method for two-axis magnetometers that compensates the measurement offsets when sensor outputs are distorted ... Read more

It can be caused, for instance, by passing vehicles or nearby large metal structures such as buildings. Because of non-deterministic characteristic, this ... Read more

Mar 22, 2011 — Adding soft iron to the mix will distort that sphere into a 3D ellipsoid (Figure 3). The equation for a 3D sphere is: x ² + y ² + z ² = r ² . Read more

The source of a local permanent magnetic field can be a piece of hard iron (hence the common name), a constant DC current, or some other type of magnet. This ... Read more