Tensiometer for free standing smectic films

Eberthardt, Matthias; Meyer, Robert B.
August 1996
Review of Scientific Instruments;Aug1996, Vol. 67 Issue 8, p2846
Academic Journal
Focuses on a machine designed to measure the surface tension of a free standing smectic film and makes it possible to measure the surface tension over a range of temperatures with minimal drift in the detector itself. Discussion of design elements that determine the stability and accuracy of the system; Composition of the feedback control designed to achieve finite force with negligible error in position.


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