Spider DSA User’s Manual
106
The geometric location where a sensor is affixed to a test article may be described
in the ID in the Input Channel Setup. An entered description such as “bearing #1
vertical” then replaces the default “Chx” label. This ID is shown with the channel
everywhere it is displayed and with its saved time stream data. For other data
processed from that time stream, EDM uses a consistent naming convention
where the data type is followed by the Location ID of the source in parenthesis.
The data types are Block for Block Data, APS for Auto Power Spectral data and H
for the Frequency Response Function. For example, the Auto Power Spectrum
from channel ID “Point1” would be named as “APS(Point1)”.
Input Channel Setup
In FFT test, inputs are configured under: Setup->Input Channels.
Figure 61: Input Channel Table (FFT)
On/Off enables or disables the channel.
Location ID assigns a custom label used to identify the source in the signal
display and other setup windows.
Measurement Quantity defines the physical unit that will be measured by the
sensor connected to the channel.
Sensitivity sets the proportionality factor for the measurement (millivolts per
engineering unit) given as a parameter of the sensor.
Input mode is the electrical interface mode of the sensor (see above).
Sensor defines the sensors imported from libraries.
Max Sensor Range defines the maximum input voltage allowed.
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