Download PDF by D. S. Ballantine Jr., Robert M. White, S. J. Martin,: Acoustic Wave Sensors: Theory, Design
By D. S. Ballantine Jr., Robert M. White, S. J. Martin, Antonio J. Ricco, E. T. Zellers, G. C. Frye, H. Wohltjen, Moises Levy, Richard Stern
Covers a large choice of sensors with specialize in analyte-film interactions for varied physical/chemical absorption approaches. rather attention-grabbing is the comparability of transients for reversible and irreversible interactions.
Read Online or Download Acoustic Wave Sensors: Theory, Design PDF
Best remote sensing & gis books
This better and up to date moment version covers the speculation, improvement, and layout of electro-acoustic transducers for underwater purposes. This very hot textual content discusses the fundamentals of piezoelectric and magnetostrictive transducers which are at the moment getting used in addition to promising new designs.
As we commence the twenty first century, one in all our best demanding situations is the upkeep and remediation of surroundings integrity. This calls for tracking and review over huge geographic parts, time and again over the years, and for this reason can't be virtually fulfilled through box measurements by myself. Remotely sensed imagery consequently performs a very important position by way of its skill to observe huge spatially non-stop parts.
In the course of fresh many years a brand new box of research in atmospheric technology has made its visual appeal - the dynamics of clouds. because the identify implies, the subject material of cloud dynamics contains the motives of cloud formation and the temporal improvement of clouds. initially, attempt used to be centred as a rule on devising types of the constitution and improvement of convective clouds, and therefore there exists huge literature in this [9, sixty nine, 88, 330, 411].
Extra resources for Acoustic Wave Sensors: Theory, Design
Nye, J. F. Physical Properties of Crystals; Clarendon Press: Oxford (1957). 6. IEEE Standard on Piezoelectricity 176-1987; IEEE Press: Piscataway, NJ (1986). Chapter 3 Acoustic Wave Sensors and Responses Devices based on piezoelectric crystals, which allow transduction between electrical and acoustic energies, have been constructed in a number of configurations for sensor applications and materials characterization. This chapter examines those devices most commonly utilized for sensing applications, including the thicknessshear mode (TSM) resonator, the surface acoustic wave (SAW) device, the acoustic plate mode (APM) device, and the flexural plate wave (FPW) device.
With devices having roughness on the order of the liquid decay length, however, the liquid-loading response was diminished by the hydrophobic surface treatment, consistent with the observations of Thompson et al. 1 Thickness-Shear Mode Resonator 63 tributed by surface roughness. The response contributed by surface roughness to the frequency shift (from an increase in motional inductance L2) arises from liquid trapping. Thus, the liquid trapping process is apparently being modified by changes in the liquid contact angle.
In considering only the mechanical properties of the crystal, however, we neglected consideration of how these resonances would actually be excited or detected. The device uses a piezoelectric substrate material in which the electric field generated between electrodes couples to mechanical displacement. This allows electrical excitation and detection of mechanical resonances. In constructing a practical sensor, changes in resonant frequency of the device are measured electrically. The electrical characteristics of the resonator can be described in terms of an equivalent-circuit model that describes the impedance (ratio of applied voltage to current) or admittance (reciprocal of impedance) over a range of frequencies near resonance.
Acoustic Wave Sensors: Theory, Design by D. S. Ballantine Jr., Robert M. White, S. J. Martin, Antonio J. Ricco, E. T. Zellers, G. C. Frye, H. Wohltjen, Moises Levy, Richard Stern