Somat eDAQlite, Руководство пользователя, Страница: 119 / 228

I2773-4.
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en 119
Somat eDAQ
lite
millivolts for the nominal gain of 10 or ±18 millivolts for the nominal gain of 100. For a
10-volt excitation range, the inputs are limited to ±360 millivolts for the nominal gain of
10 or ±36 millivolts for the nominal gain of 100.
NOTE
The output voltage is always proportional to the excitation voltage. The eDAQ
lite
makes minor corrections required to deal with slight differences in the calibrated
excitation voltage and the nominal excitation of 5 or 10 volts.
Bridge Type
Select the bridge type to match the transducer. The available types are full bridge, half
bridge and quarter bridge.
NOTE
For older SMART bridge modules, the bridge type is fixed at production.
Bridge Resistance
For quarter-bridge configurations, the value defaults to the provided completion
resistor. If necessary, modify the value if the actual strain gage has a slightly different
resistance. For either full- or half-bridge configurations, select any resistance in the
range of 100 to 10000 ohms.
Gage Factor
Define the gage factor for the specific strain gages used. TCE uses this value only in
the shunt tool calibration option that defines an equivalent strain based on the gage
factor and bridge factor values.
Bridge Factor
Define the bridge factor for the specific configuration of strain gages used. TCE uses
this value only in the shunt tool calibration option that defines an equivalent strain
based on the gage factor and bridge factor values. The bridge factor is defined here
as the arithmetic sum of the active bridge legs for any bridge configuration. For
quarter-bridge applications, the bridge factor is normally one; for half-bridge
applications where both active gages are additive, it is normally two; and for full-bridge
applications where all active gages are additive, it is normally four. Because there are
special applications where the bridge factor can be a fraction and/or a negative value
TCE considers any nonzero value valid.
HBM: public