© National Instruments Corporation 15 NI USB-9233 User Guide and Specifications
AC cutoff frequency response
AC voltage full-scale range
Typical ............................................ ±5.4 V
peak
Minimum ........................................ ±5 V
peak
Maximum........................................ ±5.8 V
peak
Common-mode voltage
(AI– to earth ground) ............................. ±2 V
IEPE excitation current
Minimum ........................................ 2.0 mA
Typical ............................................ 2.2 mA
IEPE compliance voltage ....................... 19 V max
Use the following equation to make sure that your configuration meets the
IEPE compliance voltage range.
where V
common-mode
is the common-mode voltage of the
NI USB-9233,
V
bias
is the bias voltage of the accelerometer, and
V
full-scale
is the full-scale voltage of the accelerometer.
104
0.5
0.0
–0.5
–1.0
321098765
Gain (dB)
Frequency (Hz)
V
common-mode
V
bias
V
full-scale
must be 0 to 19 V,++