Mass sensitivity of SH-APM sensors: potentialities for organophosphorous vapors detection

Using the mathematical software MapleV, a model was previously developed to determine the mass sensitivity of Shear Horizontal Acoustic Plate Mode (SH-APM) sensors. The theoretical approach and results obtained are briefly recalled in this paper. They led to the realization of test devices. To validate the model in the case of a mass loading effect, SH-APM devices were tested in gas medium and allowed the detection of organophosphorous vapors.