The Model 615 ARM (Anhysteretic Remanent Magnetizer) enables magnetization of rock samples during during demagnetation with an SRM (Superconducting Rock Magnetometer) system. The rock magnetization is achieved by applying a DC magnetic field during the degaussing process.Read More
The Model 615 ARM Magnetizer is capable of energizing two coils, typically an axial solenoid and a transverse Helmholtz pair. The field application coils are mounted to the degaussing coils of the SRM’s degaussing system. For axial discrete samples, the filed application coil consists of a solenoid mounted inside the axial degaussing coil.
For a transverse Helmholtz pair, the field application coils are mounted to the inside face of the transverse degaussing coils. For long-core systems, the field application coil consists of a long solenoid extending through the axial degaussing coil from one end of the degausser mu-metal shield to the other.
An ARM electronic system consists of a constant current source, which enables the creation and maintenance of a DC magnetic field even though the degaussing coils create large back-EMF. The magnetic field can be set either manually or by computer command if the system is equipped with a single-board computer interface option. For both manual and computer operation, the actual magnetic field present is displayed on the front panel.