Non-optical explosive sensor based on two-track piezoresistive microcantilever

摘要: A two-track piezoresistive cantilever detects explosives in ambient air by measuring resistance changes the when one track is pulse heated to cause deflagration of explosive adhered surface cantilever. The measurement through second track, which located at most resistance-sensitive area. change this caused temperature as well bending due bi-material thermal expansion. detecting method using novel avoids use any optical components such a laser and position sensing detector (PSD), are necessary traditional systems cantilevers. Therefore, it can extremely reduce complexity system make portable chemical detection possible that small, less expensive, able be mass produced particularly useful for explosives.