MEMS-based explosive particle detection and remote particle stimulation

Journal Article

We report on a new methodology for chemical detection of explosive particles associated with anti-personnel mines. Trace particle detection can be used to complement vapor detection of explosives with an electronic noise. Our approach is to remotely stimulate a target area with a high intensity, focused air ultrasonic beam whose energy can megasonically clean the target area of particles above a designed for size. We have designed a MEMS electrostatic transducer to test the concept. Nanogram particle detection will occur by collecting particles on an array of temperature sensitive MEMS sensors and irradiating the particles with 3-5 μm wavelength IR light. Explosive particles will selectively absorb the IR energy at approximately 1600 cm-1, decompose, and give off heat which can be detected.

Duke Authors

Cited Authors

  • Fair, RB; Pamula, V; Pollack, M

Published Date

  • 1997

Published In

  • Proceedings of SPIE - The International Society for Optical Engineering

Volume / Issue

  • 3079 /

Start / End Page

  • 671 - 679