Buscador web

OCA 40 para medición de contornos

OCA 40 Micro
The fully automatic contact angle measuring system, OCA 40 Micro, is the optical instrument with the highest degree of automation. It provides for the accurate, precise and reproducible measurement of contact angles of minute liquid drops and for the evaluation of the wetting properties of microscopic and macroscopic structures. State-of-the-art optics, precise mechanics, fast electronic controllers as well as high-resolution video measurement technology ensures the appropriate drop placement and image capture/analysis, in microscopic dimensions, in any situation.
	OCA 40 Micro with TV-VS and picoliter dosing system
Features of the basic instrument configuration:
* Measuring lens with 55-fold (optional 137.5-fold) zoom and software controlled, motorized focus and adjustment of the observation angle. * Video measuring system with high resolution USB camera (max. 146 images/s sample rate). * Measuring table with, software controlled, motorized X-, Y- and Z-axes for the highly precise positioning of solid samples to ensure droplet placement/pick-up in the required area. * High efficiency lighting of the optical path with software control of the light intensity, without hysteresis, and special heat eliminating routine.
	OCA 40 Micro with TV-VS and nanoliter dosing system
Optional OCA accessories:
The applicability of the OCA 40 Micro can be enhanced with the majority of the components within the OCA accessory range (with the notable exception of the high temperature furnaces). Some of the most important components and accessories are listed below: * High-speed option for USB camera (max. 146 or 311 images/s sample rate), High-speed video system UpOCAH (max. 1000 images/s sample rate), or UpHSC 2000 (sample rate 2200 images/s). * Software controlled electronic multiple dosing systems, E-MD, for the precise automatic positioning of up to six dosing needles. * Direct dosing systems, SD-DM and SD-DE. * Up to six electronic syringe units, ES, with precise adjustable dosing volume (min. 50 nl) and dosing speed (0.06 µl/s…26.4 µl/s). * Electronic micro dosing systems for the precise dosing of the test liquids in the nanoliter and picoliter range. * Electronic tilting base unit, TBU 90E, for a maximum tilt angle of 90° and tilting base attachment, TBA 60E, for a maximum tilt angle of 60°. * Electronic turn table with vacuum fixation, ETT/VAC, with top plates up to 200 mm diameter. * Temperature and environmental control systems (-30…700 °C). * Wide range of sample holding and positioning units. Inc. holders for foils or papers, FSH 30 and FSC 80/150, for single fibres, FHO 40plus, or the suction plate, SP 100, for holding thin flexible samples flat on the stage, with an adjustable suction area. * Oscillating drop generators, ODG 20 and ODG 20P, for the measurement of surface elasticities and for relaxational studies at phase boundaries. * Electro-wetting platform, EWP 100, for the analysis of sessile and pendant drops in an electrical field. * Top view video system TV-VS for the viewing and image capture of the drop (USB camera with 52 images/s sample rate, 6x parfocal zoom lens and adjustable observation angle). * The available software modules for the OCA 40 Micro are: SCA 20 — contact angle. SCA 21 — surface free energy. SCA 22 — pendant drop. SCA 23 — lamella contour. SCA 24 — drop on fibre. SCA 26 — oscillation / relaxation.