Geophysical Exploration

Owing to their extraordinary sensitivity, small size. enormous bandwidth and flat frequency response, dc SQUID sensors are attractive for use in numerous geophysical exploration techniques, including bore hole depth profiling, airborne surveying, transient electromagnetics (TEM), magnetotellurics (MT), and controlled source audio magnetotellurics (CSAMT).

Researchers at CSIRO Telecommunications and Industrial Physics Division in Australia are using pcSQUID™, STARCryo’s advanced PC-based SQUID electronics, and HTS dc SQUIDs fabricated at CSIRO to develop ultra-sensitive vector magnetometer sondes for airborne surveying and in SPINMAG, a rock magnetometer offered by CSIRO for rock magnetization measurements.