In particular, with six coils type magnetometer three Helmholtz coils
may be used, located in the center of the magnetic field shielding region  or six magnetometers disposed in respective planes and orthogonally oriented with respect to the control windings.
ANSI/IEEE standard ,  defines two magnetic sensor calibration methods: single-layer square loop and round Helmholtz coils.
To that end a round Helmholtz coil with rather high diameter (55.
At low frequencies, large Helmholtz coils driven by power amplifiers are used to establish a uniform field.
According to the user manual for the ETS-Lindgren Model 6400 Series Helmholtz Coils, "Precision in the manufacture of the 12 ft to 8 ft dial coils and their support assembly is well within a design tolerance of 0.
Key words: Helmholtz coils, uniform magnetic field, COMSOL simulation, magnetic measurements
Helmholtz coils in one axis are consisted from two identical coils with defined radius R.
Kilaneh first computed and verified the magnetic field distribution caused by Helmholtz coils
through numerical methods.
2 cm), a stop-watch timer, a thin string, a DC low voltage source, a set of Helmholtz coils
of radius of 14.
The system comprises a dedicated controller with automated calibration and self-test features, an AC and DC magnetic sensor, and Helmholtz coils
in a structural casing.
Dual coil magnet consists of two identical separate coils positioned axially as Helmholtz coils
to insure maximal homogeneity of magnetic field in central area.
Orthogonal Helmholtz coils
provide the magnetic bias and saturating fields required for the measurement.