Stanford Research Systems SR785, Operating Manual And Programming Reference

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4-172 Nodal DOF Menu
SR785 Dynamic Signal Analyzer
Reference Direction
Enter the direction associated with the reference node, i.e. the direction of the stimulus.
Direction can be specified either along the
±
X, Y, or Z axes for linear stimulus, or as
± θ
x,
θ
y, or
θ
z direction for angular stimulus.
The SR780 does not use the nodal degree-of-freedom information itself. The information
is stored with the .78D file and is available for use by external programs which convert
the SR780 files into formats suitable for modal analysis programs.
Command: RFDR (?) {i}
Response Name
Enter a descriptive name for the response node. For a frequency response function, the
response node is the node where the response is measured, e.g. the node where the
accelerometer or other detector is placed. The name may be up to six characters long.
The SR780 does not use the nodal degree-of-freedom information itself. The information
is stored with the .78D file and is available for use by external programs which convert
the SR780 files into formats suitable for modal analysis programs.
Command: RSNA (?) {s}
Response Number
Enter the identification for the reference node. For a frequency response function, the
response node is the node where the response is measured, e.g. the node where the
accelerometer or other detector is placed. The number may be any integer.
The SR780 does not use the nodal degree-of-freedom information itself. The information
is stored with the .78D file and is available for use by external programs which convert
the SR780 files into formats suitable for modal analysis programs.
Command: RSNU (?) {i}
Response Direction
Enter the direction associated with the response node, i.e. the axis of the accelerometer
or other measuring device. Direction can be specified either along the
±
X, Y, or Z axes
for linear stimulus, or as
± θ
x,
θ
y, or
θ
z for angular measurements.
The SR780 does not use the nodal degree-of-freedom information itself. The information
is stored with the .78D file and is available for use by external programs which convert
the SR780 files into formats suitable for modal analysis programs.
Command: RSDR (?) {i}