Particle Separation by a Coupled Acoustic-gravity Field and Laminar Flow
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چکیده
The coupled acoustic-gravity field channel used in this study is schematically illustrated in Fig. 5.1. A lead-zirconate-titanate transducer with 510kHz resonant frequency (170mm-length × 15mm-width × 4.2mm-thick, Fuji-ceramics Inc., Japan) was glued on a 5.00mm-thick Pyrex glass plate using epoxy adhesive. Boat-shaped PTFE spacer (0.8mm-thickness) was sandwiched between the glass plate with transducer and an aluminum plate. The transuducer was excited by the electrical signals generated by a digital function generator (WF1946, NF Electric. Co. LTD., Japan) and amplified by a bipolar high-speed amplifier (4015, NF Electric Co. LTD., Japan). Degassed MilliQ water was fed to the channel as the mobile
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