Design and testing of ARMIT magnetic field sensors for EM systems

James Macnae

ASEG Extended Abstracts 2012(1) 1 - 4
Published: 01 April 2012

Abstract

We have designed and tested compact magnetic B and dB/dt sensors suitable for geophysical operation through monitoring the current and voltage induced in a test conductor within the sensor. Laboratory and field tests confirm that a 50 cm long sensor of mass less than 1 kg can be constructed with noise levels between 1 pT and 10 fT per vHertz over the 10 Hz to 100 kHz bandwidth respectively. The sensors are robust, and a rigid 3 component mounting box with accelerometer orientation permits rapid field deployment without the need for levelling

Full text doi:10.1071/ASEG2012ab343

© ASEG 2012