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The principle is based on the analysis of the profile of pendent and sessile drops or buoyant and captive bubbles. PAT is well suited to determine the contact angle of liquids on solid surfaces. · Very compact profile analysis tensiometer · Simple manual instrument to measure surface and interfacial tension of liquids · Contact angle measurements are available in the basic version · No power supply needed (powered by USB) · Ideal instrument for educational purposes Hardware - Instrumental parts: · Basic platform on which all parts are safely mounted · Manual x/y -axis · Syringe for manual drop/bubble formation · Thermostated jacket for external circulation bath · USB industrial camera with fixed objectives (no frame grabber needed) · LED lighting with continuously adjustable intensity Measurement Features: · Surface and interfacial tension of liquids · Contact angle according to the sessile drop method Main features of the software: · on-line interfacial tension/contact angle calculation · transient relaxation experiments · calculation of the dilation rheological parameters from relaxation measurements via Fourier analysis Measuring options: • automatic drop volume/area control (optional) • pendent drop, buoyant bubble, sessile drop surface / interfacial tension • dilational elasticity • contact angle • surface free energy • drop/bubble oscillations 0.001 to 1 Hz (optional) Range of surface and interfacial tension: 10 to 2000 mN/m, resolution: ± 0.05 mN/m Range of contact angle measurement: 5° to 175°, accuracy ±0.3° Dosing: manual drop/bubble formation Optics: manual fixed objectives Industrial CMOS-camera: max. resolution 1280 x 960 pixels USB, optical distortion: < 0.05 % Frame rate: up to 25 images/s Axis: manual x-axis, manual y-axis Illumination: LED, manually controlled light intensity Software: OS Windows 7, 8, 8.1 or 10, free update over 1 year after purchase Interface: USB Size of device (LxWxH): 400 x 200 x 200 mm (standard version) Weight: 3 kg Power supply: powered by USB bus Extra accessories: additional capillaries on request

Projekt OLED-Sonderleuchten Wand- und Deckenleuchten / 2013 November 2012 – Februar 2013 Auftraggeber Barkow Leibinger Architekten Projektleiter Gustav Düsing Elektronik Artronis Visual, Samuel Kress, Berlin Engineering Peter Schneyder / Design & Engineering / Berlin November 2012 – Februar 2013 Beitrag mit Freunden teilen

Mit dem AS-Sonden Adapter kann eine Magnetfeldsonde aus unserem Programm der AS-Aktivsonden am Analogeingang einer SPS betrieben werden.

Quick surface tensions with an easy available tensiometer Ring and plate tensiometry belong to the classical methods for measuring the surface tension of liquids. The principle is to measure the weight of a meniscus hanging on a ring or plate. Our solution does not an extra force transducer as any accurate laboratory balance (better than 0.1 µg) is suitable to complete this instrument. Easy handling and operation with a modern Windows software. Both manual and automatic versions are available. The density of a liquid can be measured as well by the immersion of a body of known volume. • laboratory balance (better 0.1 mg) • automatically motor driven movement of the ring or plate or manual movement by a linear stage • holder for a ring, plate or immersion body The instrument allows the following measurements: • surface tension of liquids • ring and plate method • determination of density with an immersion body • corrections factors after Harkins and Jordan • contact angle measurements with the immersing plate technique • easy to handle instrument and software • also available as manual instrument • use with any PC or laptop Extra accessories: • Wilhelmy plate • immersion body for density measurements • temperature controlled cell Range of surface and interfacial tension: 1 to 1000 mN/m Reproducibility of measured values: resolution: ± 0.1 mN/m(with balance ± 0.1 mg) Time range: 01 s to 10 h Range of contact angle measurement: 10° to 170°, accuracy ±0.3° Software: Windows software (free update over 1 year after purchase) Temperature operating range: 10 – 50°C Measurement temperature range: room temperature, (optionally 0 – 80°C) Connection to PC: RS-232 Power supply, external: 100 … 240 AC; to 12 VDC Power consumption: max. 55 W Size of device (LxWxH) - manual version (without balance): 100 x 100 x 300 mm Size of device (LxWxH) - automatic version (without ballance): 200 x 50 x 250 mm Weight Measurement unit - manual version (without a balance): 1 kg Weight Measurement unit - automatic version (without balance): 2 kg DMeasuring options - Du Nouy ring method: standard routine DMeasuring options - Wilhelmy plate method: standard (optional contact andge) DMeasuring options - Density determination: for liquid density < 2 g/cm³