THERMOACOUSTIC STUDIES IN ALKENYL LIQUID CRYSTALLINE COMPOUNDS
Abstract
Density of the liquid crystals can be
measured by using a specially constructed
sensitive dilatometer having two uniformly
bored capillary arms of length around 30 cm
above the bulb The volume of the
dilatometer bulb and the volume of the
capillary bore per cm were determined by
calibrating it with triple distilled water,
benzene and mercury and found to be
3.12916 cc and 0.00951 cc/cm respectively.
The levels of the fluid in both capillary arms
were recorded by using two traveling
microscopes of least count 0.001 cm. The
temperature variations of the volume of the
dilatometer were recorded and corrections
were made for it. All the weighing were
done on sensitive K.Roy analytical single
pan balance of sensitivity 0.00005 gm. The
dilatometer was placed inside the INSREF
solid state temperature bath and the
temperature was controlled to an accuracy of
0.1C for making measurements at various
temperatures.
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