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An ultralight biotelemetry backpack for recording EMG signals in moths
P Mohseni1, K Nagarajan, B Ziaie
1Department of Electrical Engineering and Computer Science, Center for Integrated MicroSystems, University of Michigan, Ann Arbor 48109, USA. pmohseni@engin.umich.edu
Abstract:
A two-channel FM biopotential recording system fabricated on a foldable, lightweight, polyimide substrate is presented. Each channel consists of a biopotential amplifier followed by a Colpitts oscillator with operating frequency tunable in the 88-108 MHz commercial FM band. The overall system measures 10 mm X 10 mm X 3 mm, weighs 0.74 g, uses two 1.5-V batteries, dissipates about 2 mW, and has a transmission range of 2 m. Using this system, electromyogram signals have been recorded from the dorsal ventral muscle and the dorsal longitudinal muscle of a giant sphinx moth (manduca sexta).