Princeton Measurements Alternating Gradient Magnetometer


A more detailed description can be found in IRM Quarterly v. 2, n. 1, Spring 1992.

The MicroMag (a.k.a. AGFM) allows rapid (10 minutes/sample) high-sensitivity hysteresis measurements on small samples at room temperature. These measurements indicate the coercivity distribution in a sample, thereby providing information on magnetic mineralogy and particle sizes.

Here are links to more details regarding sample preparation