A systematic study of acoustic emission detection using fiber Bragg grating sensors is presented. In this, we attempt to use the fiber Bragg grating to sense the dynamic strain created by a passing ultrasonic wave signal. Our goal is to see if such a sensor is possible, and if so, what the detection sensitivity and limitations will be. To answer these questions, we carried out several experimen...

A new method for the detection and identification of gas molecules and the analysis of their mixtures is proposed. The new process is based on the analysis of the amplitude density function of surface acoustic wave resonator (SAWR) or MOSFET signal(s). The proposed method has the potential to detect and identify very small numbers of molecules, even a single one. When the number of adsorbed mol...

Related Articles Study on lattice dynamics of filled skutterudites InxYbyCo4Sb12 J. Appl. Phys. 112, 024909 (2012) Simulated thermal conductivity of silicon-based random multilayer thin films J. Appl. Phys. 112, 014320 (2012) Defect-free localized modes and coupled-resonator acoustic waveguides constructed in two-dimensional phononic quasicrystals J. Appl. Phys. 111, 104314 (2012) Vibrational m...

Both ZnO and PZT Thin Film Bulk Acoustic Resonator filters were fabricated, tested and modeled in this study. The development of an accurate Mason model allows the effect of particular parasitic components on the microwave s-parameters in the region of the series and parallel resonances to be identified. The parasitic components that limit the performance of our ZnO and PbZr0.3Ti0.7O3 Thin Film...

We demonstrate a promising strategy to combine the micro-electromechanical film bulk acoustic resonator and the nanostructured sensitive fibers for the detection of low-concentration formaldehyde vapor. The polyethyleneimine nanofibers were directly deposited on the resonator surface by a simple electrospinning method. The film bulk acoustic resonator working at 4.4 GHz acted as a sensitive mas...

In this paper, we present a novel microelectromechanical system-interdigital transducer (MEMS-IDT) surface acoustic wave (SAW) gyroscope with an 80MHz central frequency on a 128 YX LiNbO3 wafer. The developed MEMS-IDT gyroscope is composed of a two-port SAW resonator, a dual delay line oscillator, and metallic dots. The SAW resonator provides a stable standing wave, and the vibrating metallic d...

For the study of pressure waves in an oscillating acoustic resonator, one has to solve the compressible NavierStokes equations. The geometry of the resonator strongly influences its resonance frequencies and the nonlinear standing pressure waveform generated within the cavity. Studying the acoustic wave by real physical experiments would be expensive due to the cost of constructing different re...

Abstract Based on the requirement of flexible electronic devices (FED)such as surface acoustic wave (SAW) sensors, finite element models for material analysis and SAW resonator design were established. Dual-mode Rayleigh Horizontal Shear mode 0ºY cut LiNbO 3 thin film was discovered. The influence BCB thickness PI substrate resonant analyzed. owned high sensitivity both in shear under tensile s...