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Tender For Drop Shape Analyser (Dsa) => Limited; SOFTWARE -Fully Automated Software Module to determine Contact Angle, surface free energy & Surface Tension measurement -System can automatically detect Droplet-Trans detection and this feature would ensure variation over time. -The system needs the cable connection of only USB cable for data transmission and power supply as well. -System must be very small footprint design and ensure that it can be packed and moved to a different lab any time. Measurement Method -Sessile Drop, Pendent drops method for surface tension measurement. Analysis System: -Contact Angle-Theta/2 method, Tangent method, Circle fitting, Elipse Fitting -Surface Free Energy: Kitazaki-Hata, Owens-Wendt, Kaelble-Uy, Wu,acid-base,Young-Dupré, Zisman Plot Surface tension/Interfacial tension: Young-Laplace Method, ds/de Method Contact Angle Range: 0 – 180 deg., Surface Tension Range: 0-100mN/m, Resolution: 0.01. Accuracy: 0.3. Light source -LED Light source Camera -High speed camera with USB 3.0 Surface Free Energy Kit -Surface energy calculation should be provided to measuring Surface Free energy automatically. Sample Stage Size 100 x 100mm Stage Movement -Z-axis; 10.5mm by rotation of knob Droplet Dispensing -Manual dispenser with min 1 μl. Needles & Syringes -Teflon coated needle (2set), Glass syringe (5 set), Pendent Drop needle set for surface tension Droplet Disposition - Touch drop, by sample stage up/down movement - Calibration kit for contact angle & Operation manual Electric Power -USB bus power. DC5V, 2W max Warranty -At least one year
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