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Linear Expansion Apparatus
For accurately measuring the the coefficient of liner expansion of
electrically conducting materials such as metal rods. Consists of a
frame of thermally rigid materials consisting of two cast end pieces
connected by two steel rods which appropriately hold a plate brass pipe.
The pipe acts as a steam jacket and is fitted with steam inlet and outlet
as well as a tube suitable for inserting a thermometer through a rubber
stopper. The pipe jacket is held in proper alignment with the help
of two metal yokes, requiring minimal adjustment while removing or insert
the rod under study. One of the yokes has knurled thumb screw to
lock the steam jacket in place. The expanding rod makes contact with
a 0.01 mm micrometer which measures the extent of expansion when steam is
passed through the jacket. The exact point of contact of the rod and
the micrometer is found with the help of an indicator lamp. The
design avoids use of lose wires. Supplied with three rods - brass, copper
and steel. Steam Generator and thermometer not included.
No. SF412-EX. Only $74.95 |
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