INFICON RQCM - Quartz Crystal Microbalance Research System User Manual
Page 96
RQCM – RESEARCH QUARTZ CRYSTAL MICROBALANCE
GLOSSARY
11-2
Viton®
DuPont Dow Elastomers’ registered trademark of Fluoroelastomer,
offers superior
mechanical properties and resistance to aggressive fuels and chemicals, well known for
its excellent heat resistance.
r more detailed
information.
RTD
Resistance temperature detector. A device that senses temperature by measuring the
change in resistance of a material.
Thermistor
A temperature-sensing element composed of sintered semiconductor material which
exhibits a large change in resistance proportional to a small change in temperature.
Thermocouple
A device that has a junction of two dissimilar metals which has a voltage output
proportional to the difference in temperature between the hot junction and the lead
wires (cold junction).
I.D.
Abbreviation for Inside Diameter. Usually use in specifying a tube size in the form
inch
I.D. x inch O.D., where inch are the dimensions.
O.D.
Abbreviation for Outside Diameter. Usually use in specifying a tube size in the form
inch
I.D. x inch O.D., where inch are the dimensions.
Viscosity
The internal friction of a fluid, caused by molecular attraction, which makes it resist a
tendency to flow.
Elastic
Flexible or springy - the property of immediately returning to its original size, shape,
or position after being stretched, squeezed, flexed, etc.
Viscoelastic
Having or exhibiting both viscous and elastic properties.
Lipid
An organic compound found in tissue and that is soluble in nonpolar solvents.
Hydrophilic
Water-loving; attracted to water molecules and polar molecules.
Hydrophobic
Water-hating; not attracted to water molecules or polar molecules.
Hydrocarbon
A compound containing only the elements carbon and hydrogen.
nonpolar
Describing a molecule having no separation of centers of positive and negative
electrical charge that would make the molecule assume certain orientations more than
others in an electric field.
Organic
In chemistry, organic refers to a species containing carbon. Certain small ions and
compounds containing carbon (such as carbon dioxide) are usually not considered to
be organic, but rather are classed as inorganic.
UVO cleaning
Ultra-Violet/Ozone. The UVO cleaning method is a photo-sensitized oxidation
process in which the contaminant molecules are excited and/or dissociated by the
absorption of short-wavelength UV radiation. Near atomically clean surfaces can be
achieved using this method. The basic instrumentation required this process includes a
UVO chamber, a gas (oxygen) supply, or an exhaust system. For more information,
visit