6
Some data acquisition systems incorporate the power supply portion of the
schematic diagram. In these instances, the accelerometer is simply fed into the
data acquisition system's input connector which may be labeled "Accelerometer In"
or “Integrated Circuit Power" (see Figure 4·2).
Figure 4·2. Low Impedance Wiring Directly
to
Instrumentation
For those applications where the data acquisition system does
not supply the
constant current power, an external power supply must be used. Essentially, the
accelerometer should be connected to the power supply connector labeled
"Acceleration In". The power supply connector labeled ''Output" should be
connected to the input of the data acquisition system being used (see Figure 4-3).
Figure 4-3. Low Impedance Wiring to Power Supply and Instrumentation
