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Quartz
dilatometer with the electric capacity sensor
Areas of applications:
Physics of Solids, Mechanics, Physics of
Phase Transitions
Dilatometer is designed for measurements of
changes in linear sizes for solid samples and determination of their coefficients
of thermal linear expansion. The working principle of the dilatometer consists
in the measurements of the temperature-induced changes of linear sizes
of solid samples. Variation of the temperature on heating or cooling is
controlled with a computer.
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Technical specifications:
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Sensitivity: 1nm
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Sample sizes: height 0.5-15mm
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Temperature ranges: [-190 +80]°C and [+20
+1000]°C
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Temperature rates: [0.1 5]°C/min.
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Accuracy for temperature stabilization: 0.05°C:
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Accuracy for temperature measurements: 0.01°C
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Accuracy relative linear expansion measurements:
~10-6
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Computer operational system: WIN/98/2000/XP
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Application examples
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Changes of linear sizes for a crystal of
Li2B4O7 (z-direction, L=10mm) due to pyroelectric discharging on cooling
with the temperature rate 1°C/min |
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Temperature dependencies of relative linear
elongation for K2Cd1,8Mn0,2(SO4)3 crystals at the phase transition |
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