Fig. 1.From: An aeromagnetic survey of Shinmoe-dake volcano, Kirishima, Japan, after the 2011 eruption using an unmanned autonomous helicopter(a) The main body of the unmanned autonomous helicopter RMAX-G1. (b) Inside the car used for the base station. (c) The car used for the base station with the wireless antennas. (d) A snapshot of the helicopter conducting aeromagnetic observation. (e) A close-up of “(d)”. Wire length between the helicopter body and the cesium sensor is 4.5 m.Back to article page