# Home > Actuators > Precision measuring

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**Topic under **Precision measuring

**Source:** www.ipd.anl.gov

**File size:** **1.59 MB**

**File type:** **pdf**

**Last download on:**
Tue Apr 10, 2018 02:34:54 AM

__Short Desciption__:

Optimal dynamic performance for high-precision actuators/stages. Curt Preissner ... Although this approach enables researchers to generate more data, the introduction of multibody .... Once FRFs for all of the desired measurement

__Summary__:

System dynamic performance of actuator/stage groups, such as those found in optical instrument positioning systems
and other high-precision applications, is dependent upon both individual component behavior and the system
configuration. Experimental modal analysis techniques were implemented to determine the six degree of freedom
stiffnesses and damping for individual actuator components. These experimental data were then used in a multibody
dynamic computer model to investigate the effect of stage group configuration. Running the computer model through
the possible stage configurations and observing the predicted vibratory response determined the optimal stage group
configuration. Configuration optimization can be performed for any group of stages, provided there is stiffness and
damping data available for the constituent pieces.

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