One of the two capacitor plates is fixed and the other plate is allowed to move accordingly as the sample changes its dimension. The resolution of our current dilatometer is about 0.1 Å.
Images & Sample Data
Click on images to view a larger version, to download or to view more details.
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Capacitive titanium dilatometer.
Capacitive titanium dilatometer.
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3D drawing of a capacitive titanium dilatometer.
3D drawing of a capacitive titanium dilatometer.
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3D drawing of a capacitive titanium dilatometer (expanded view).
3D drawing of a capacitive titanium dilatometer (expanded view).
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3D drawing of a capacitive titanium dilatometer in a rotating probe.
3D drawing of a capacitive titanium dilatometer in a rotating probe.
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Charge density wave transitions in alpha-uranium probed; click on image for details.
Charge density wave transitions in alpha-uranium probed; click on image for details.
View the embedded image gallery online at:
https://nationalmaglab.org/user-facilities/dc-field/dcfield-techniques/dilatometry-capacitance-dc#sigProId2b818310f4
https://nationalmaglab.org/user-facilities/dc-field/dcfield-techniques/dilatometry-capacitance-dc#sigProId2b818310f4
Instrumentation
- Home built capacitive dilatometer and Andeen-Hagerling Capacitance Bridge
- Home built capacitive dilatometer and General Radio Capacitance Bridge in combination with AC power supply and Lock-in amplifier.