Instrumentation for Acoustical Discrimination of Biological Cells1974 - 14 pages |
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22 METAL TUBE 32 mils acoustic beams acoustic Gaussian resonator Acoustic Resonator acoustic signal ACTIVE AREA adaptability to different avoid sedimentation beams in water biological cells biological research blood cells cells detecting CEMENTED INTO PROBE clinical Coaxial Flow System Completed and tested configuration containing the cells cross-section curvature deposited on top detecting system diam diameter dimensions evaluate facilitate the flow flow channel flow rate frequencies gold film image transducers fabricated improved techniques inner needle involve depositing gold liquid containing lower needle MATCHING CIRCUIT measure the perturbation megacycle METAL TUBE CEMENTED mirrors needle is connected needle is narrowed needle serving optical optimum fashion outer needle photoresist mask piezoelectric plane polystyrene sphere Preliminary testing PYREX GLASS PYREX IMAGE PROBE range receiving transducer REPORTING PERIOD resonant field sensitivity SIGNAL SOURCE slot substrate temperature technique of fabricating thick mylar sheet Thin Film Transducers tion TUNGSTEN WIRE ultrasonic waist wavelengths zinc oxide