TA Instruments RSA-G2, Руководство пользователя

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RSA-G2 Getting Started Guide Page 13
Chapter: 1
Introducing the RSA-G2
Overview
The TA Instruments RSA-G2 Dynamic Mechanical Analyzer (DMA) tests the dynamic mechanical prop -
erties of solid materials by using a servo drive linear actuator to mechanically impose an oscillatory defor -
mation, or strain, upon the material being tested (hereafter referred to as the sample). This deformation can
also be a step change in position, or a constant rate of deformation (step strain tests, for example). To main -
tain consistency throughout rheometric documentation and TRIOS software, the actuator will be referred
to as the motor, even though in this case the motion is axial. The sample is coupled between the motor and
a transducer, which measures the resultant force generated by sample deformation. Strain amplitude and
test frequency are set by the operator, and the actual sample deformation is determined by the measured
motor and transducer displacement.
The RSA-G2 works in conjunction with a controller, TA Instruments TRIOS software, and a Forced Con
-
vection Oven (FCO) to make up a rheological system. Note that the FCO is the only environmental system
that can be used with the RSA-G2.
Your controller is a computer that performs the following functions:
• Provides an interface between you and the instrument
• Enables you to set up experiments and enter parameters
• Runs the experiments and stores experimental data
• Allows you to calibrate the instrument
• Runs data analysis programs
The following pages provide a brief description of the components available with the system.
NOTE : For technical reference information, theory of operation, and other information associated with the
RSA-G2 and not found in this manual, see TRIOS online help.
System Components
The RSA-G2 system can be set up in several different configurations, depending upon your needs.
The following items may be part of a system:
• RSA-G2 test station
• Modular power supply
• Geometries (optional)
• Forced Convection Oven
• LN2 Controller (optional)
• Chiller (optional)
• DETA (optional)
These components are briefly described in this chapter. For details regarding each part, please refer to the
online help accessed through the TRIOS software.