a:2:{s:9:"oldRecord";a:2:{s:6:"header";s:37:"Temperature controlled measuring cell";s:8:"bodytext";s:2779:"The SVT 20 can be readily equipped with a liquid/gas-temperature controlled measuring cell, MC-TFC 130, or with a peltier/gas-temperature controlled measuring cell, MC-TPC 180. Inside the measuring cell gas (preferably helium)&nbsp; can be used, as a heat transfer medium, to optimise the transfer of the required temperature regime to the measuring capillary. Every measuring cell is easily mountable/dismountable and includes the water-coolable high-dynamic measuring drive.
Measuring cell MC-TFC 130
<h2>MC-TFC 130</h2>
Temperature controlled measuring cell for installation onto the tilting stage of the SVT.<br />For measurements lower or higher than room temperature. For use with a liquid circulator, e.g. the liquid cryostat F25 ME. The cell temperature is set by the liquid circulator. In the measurement chamber gas (preferably helium) can be used as a heat transfer medium, to optimise the transfer of the required temperature regime to the measuring capillary.<br /><strong><em>Consisting of:</em></strong>
<ul><li>Vibration free, electronically commuted, high-dynamic DC-Drive.</li><li>Liquid/gas temperature controlled chamber with 2 observation windows made from optically clear glass with quick -clamp device for holding the capillary.</li><li>PT100 temperature measurement sensor.</li></ul>
<br /><em><strong>Technical data:</strong></em><br />
<ul><li>Temperature range -10 to 130 °C.</li><li>Heating up and cooling down rate: dependant on the liquid circulator.</li></ul>
<link http://www.dataphysics.de/?action=zoom_view&id=505&invisible=1&zoom_size=1&zoom_copyright=%26amp%3Bcopy%3B+2009+by+Dataphysics _blank></link>PID controller TC 180/SVT with measuring cell MC-TPC 180<br />
<h2>MC-TPC 180</h2>
Temperature controlled measuring cell for installation onto the tilting stage of the SVT.<br />For measurements lower or higher than room temperature. For use with the PID Temperature controller, TC 180/MC-TPC and a liquid circulator, e.g. the liquid cryostat F25 ME. The temperature setting can be done at the TC 180/MC-TPC or at the touch panel of the SVT.<br />In the measurement chamber gas (preferably helium) can be used as a heat transfer medium.<br />Needs counter cooling with fluid circulator.<br />
<ul><li><em><strong>Consisting of:<br /></strong></em></li><li>Vibration free, electronically commuted, high-dynamic DC-Drive.</li><li>Peltier/gas temperature controlled chamber with 2 observation windows made from optically clear glass with quick clamp device for holding the capillary.</li><li>Two resistance thermometers Pt 100 as measuring and control sensors.</li></ul>
<br /><em><strong>Technical data:</strong></em><br />
<ul><li>Temperature range: -30 to 180 °C; ±0.1 K.</li><li>Heat up and cool down rate: ±1 K/s.</li></ul>";}s:9:"newRecord";a:2:{s:6:"header";s:8:"SVT 20 N";s:8:"bodytext";s:3102:"<h2>Spinning Drop Video Tensiometer.</h2>
The spinning drop video tensio­meter, SVT 20N, is a special purpose optical instrument for measuring of conventional to extremely low interfacial tensions.&nbsp;<br />The control/data analysis software is designed for intuative use and fast access to all control elements.&nbsp;<br />Combined with the software packages SVTS 20, SVTS 21, and SVTS 22 the SVT 20N provides the following functions:
<ul><li>Automatic control of the electronic tilting base, for positioning of the rotating droplet along the rotary axis of the capillary</li><li>Automatic variation of the rotation speed</li><li>Measurement and analysis of the static, time, and temperature dependent interfacial tension (1·10<sup>-6&nbsp;</sup>to 2·10<sup>3</sup>&nbsp;mN/m) according to the spinning&nbsp; drop method and oscillating spinning&nbsp; drop method.</li><li>Measurement and analysis of the 2D and 3D extensional relaxation of visco-elastic liquids and membrane encapsulated liquids. drops by variation of the rotational speed.</li><li>Determination of the yield point of liquid crystalline.</li><li>Determination of the dispersive and polar parts of liquids on the basis of interfacial tension, with error limits.</li><li>Calculation of the geometry of rotating drops related to the rotary axis.</li></ul>
<br /><b>Features of the basic instrument configuration:</b>
<ul><li>High dynamic, electronically commutated direct current motor with software controlled speed control (0 to 20?000 rev/min; ± 0.001 rev/min)&nbsp; to realise spped steps (± 2?000 rev/min/s) and sinusoidal speed variations (0.01 to 200 Hz) for relaxation measurements.</li><li>High-performance 6-fold power zoom lens with an integrated continuous fine focus and adjustable observation angle.</li><li>Video measuring system with USB-camera (max. 146 images/s sample rate).</li><li>USB connection to PC (or Notebook).</li><li>LED lighting with software controlled adjustable intensity and strobe frequency.<br />Integrated touch screen for controlling basic functions.</li><li>Automatic, software controlled position and tilt adjustment.</li><li>Automatic calibration function for correcting optical distortions caused by the capillaries (cylindrical lens effects).</li></ul>
<br /><b>Optional SVT accessories:</b>
<ul><li>Easy mountable liquid/gas-temperature controlled measuring cell MC TFC 130; temperature range&nbsp; -10 to 130 °C.</li><li>Easy mountable peltier/gas-temperature controlled measuring cell MC TPC 180; temperature range -30 to 180 °C; ±0.1 K resolution with a heat up and cool down rate of ±1 K/s.</li><li>Fast-exchangeable special high-temperature glass capillaries (up to 180 °C) FEC&nbsp;622/4 0-HT.</li><li>Cost-effective (disposable) fast-exchange capillaries made of polycarbonate (up to 60 °C) FEC&nbsp;780/400-P.</li><li>Automatic dosing system ES-D/S.</li><li>Calibration standard DCS-SVT.</li><li>The available software modules for the SVT 20N are:</li><p>- SVTS 20&nbsp; - Interfacial Tension.</p><p>- SVTS 21 - Oscillation.</p><p>- SVTS 22 - Geometry.</p></ul>";}}