An ultralight biotelemetry backpack for recording EMG signals in moths

IEEE Trans Biomed Eng. 2001 Jun;48(6):734-7. doi: 10.1109/10.923792.


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).

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Electromyography / instrumentation*
  • Equipment Design
  • Miniaturization
  • Moths / physiology*
  • Resins, Synthetic
  • Telemetry


  • Resins, Synthetic
  • polyimide resin