38 Trigno Wireless System User’s Guide
TM
(1) Delay from sensor event to analog output is fixed for all channels, and referenced as a
"group delay". In the case of Accelerometer channels, this delays consists of the following
elements: a) Acc Filter (2 ms), b) Digitization Delay (41 ms), c) SinX/X Correction (27 ms),
and d) Analog Low Pass Filtering (26 ms).
(2) This parameter relates the nominal uncalibrated voltage differential for an inertial
displacement of 1 g.
(3) Sin(X)/X correction is applied to each channel for cancelling the distorting effects of the DAC
sampling process.
ACCELEROMTER ANALOG OUTPUT SPECIFICATIONS
Number of outputs
16 X Axis
16 Y Axis
16 Z Axis
Signal group delay
(1)
96 ms
Accelerometer Output Signal Range ±5 V
Nominal Accelerometer Signal
Gain
(2)
2.424 V/g ±5% (±1.5g range)
0.624 V/g ±5% (±6g range)
Channel Offset ±100 mV (max)
Baseline Noise 0.5mV RMS
DAC Filter Bandwidth DC-50 Hz, 160 dB/Dec
Passband Ripple
(3)
<2% with Sin(X)/X correction
Connector Type SCSI-68, Type II
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