High sensitivity Love-mode liquid density sensors

• Published in: Sensors and actuators. A. Physical. Vol. 123; pp. 267 - 273
• Main Authors: Turton, A.C., Bhattacharyya, D., Wood, D.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 23.09.2005
• Subjects: Actuators; Density; Liquid density sensor; Liquids; Love; Noise levels; Optimization; Polyimide; Polyimide resins; SAW; Sensors; Wavelengths; SAW; Polyimide; Liquid density sensor; Love

An experimental study into Love-mode liquid sensors using polyimide for a waveguide layer has been carried out. Love devices were built on Y-ST quartz with 40 μm wavelength inter-digitated transducers operating up to 124.7 MHz, and polyimide layers between 0.65 and 1.5 μm thick. The optimum polyimid...