Optical contact angle measuring- OCA 200


The Optical contact angle measuring- OCA 200 is an advanced contact angle measuring and drop contour analysis system for microscopic and macroscopic structures. It features an automated optic alignment system, a 10-fold zoom lens, and a high-performance camera for precise analysis of various sample sizes. With electronically driven sample positioning and multiple dosing systems, it enables highly accurate wettability studies on surfaces ranging from silicon wafers to microstructures like dental implants and coronary stents.

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The Optical contact angle measuring- OCA 200 is the contact angle measuring and drop contour analysis system for microscopic and macroscopic structures. The software-controlled, electrically driven optic alignment enables the OCA 200 to adjust the observation angle and to focus automatically. With the trendsetting 10-fold zoom lens and the reliable auto focus system by DataPhysics Instruments, the OCA 200 is equipped to handle any kind of sample size from a macroscopic silicon wafer to the microscopic mesh structure of a coronary stent. In combination with the high-performance camera with USB 3 interface even smallest drops of highly volatile liquids can be monitored.

The electrically driven sample table makes it possible to position micro-structured samples with highest precision and exceptional speed for fast automated measuring procedures. With an electronic multiple direct dosing system DDE/x and up to four electronic syringe modules ESr-N liquids can be deposited on a macroscopic sample and its surface parameters can be determined automatically.

Features of Optical contact angle measuring- OCA 200

  • sample table adjustable in all three directions in space with electronic high-performance axes
  • trendsetting 10-fold zoom lens
  • software-controlled, electrically driven optic alignment for autofocus and adjustment of the observation angle
  • video measuring system with high-performance camera using USB 3 interface
  • LED-lighting with manual and software controlled intensity including automatic temperature drift compensation
  • included TP 50 control panel with touch screen and precision control wheel

Technical Specification

Contact angle
measuring range 0 … 180°
accuracy ± 0.1°
resolution ± 0.01°
Surface and interfacial tension
measuring range 0.01 … 2000 mN/m
resolution ± 0.01 mN/m
Surface energy
Liquid bridge analysis
Oscillation / relaxation
Topview contact angle
Sample table electronic precision axes
traversing range (X-axis [mm] x Y-axis [mm] x Z-axis [mm]) 100 x 105 x 50
traversing speed (X-axis) 75 nm/s … 18 mm/s
traversing speed (Y-axis) 75 nm/s … 21 mm/s
traversing speed (Z-axis) 75 nm/s … 20 mm/s
positioning resolution ± 39 nm
max. sample weight 10.0 kg
LED-lighting with manual and software-controlled intensity including automatic temperature drift compensation
warm-white LED (3000 K)
monochromatic red LED (660 nm)
monochromatic blue LED (465 nm)
Temperature and environmental control
temperature chambers (-30 °C to 700 °C)
electrical needle heating device (RT … 700 °C)
humidity generator of the HGC series
Optics
6.5-fold zoom lens with integrated manual focus (± 6 mm)
10-fold zoom lens with software-controlled focus (± 4,5 mm) and observation angle (-9° … +2°2‘)
field of view (X min x Y min) … (X max x Y max)
(1.11 mm x 0.83 mm) … (7.14 mm x 5.35 mm)
(2.50 mm x 1.33 mm) … (16.09 mm x 8.55 mm)
(1.12 mm x 0.58 mm) … (11.29 mm x 5.98 mm)
Camera system
USB 3 camera, 1/3″ sensor

max. resolution 1440 x 1080 pixel with 227 frames/s, max. frame rate 3246 frames/s

 

USB 3 camera, 2/3″ sensor

max. resolution 2048 x 1088 pixel with 170 frames/s, max. frame rate 4276 frames/s

 

high-speed camera system on request
TP 50 control panel
Dimensions (L [mm] x W [mm] x H [mm]) 680 x 310 x 370
Weight 28 kg
Power supply 100 … 240 VAC;

50 … 60 Hz; 70 W

  • integrated      ○with optional software/accessory     ― not available
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