Chapter 5 -- Cell Connections--Quartz Crystal Installation
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Warning
Make sure that your earth ground connection is made to a legitimate source of earth
ground. Consult a qualified electrician if you are uncertain how to obtain an earth
ground. Connecting the eQCM 10M to an incorrect and unsafe voltage can create a
safety hazard (see Chapter 1 for details).
Environmental Considerations
The eQCM 10M is a very sensitive instrument capable of measuring ng/cm
2
of material deposited onto the
electrode face. Therefore, special consideration of the environment will help ensure you are acquiring the best
data possible. Vibrations or sudden movements should be minimized or eliminated during acquisition.
Likewise, temperature fluctuations should be kept to a minimum. Changes in temperature and the rate of
change of temperature will both cause frequency drift during data acquisition. If you are planning very long
experiments a temperature controlled chamber may be necessary to reduce drift. Leaving the crystal holder in
solution for some period of time prior to starting your experiment will help reduce unwanted frequency
changes.
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