Bitmap Trigger; Directional Velocity - HBM SomatXR CX23-R User Manual

CX23-R and EX23-R
On: Select to enable limit detection.
o
Minimum and Maximum: If any data sample in the analysis window is less
o
than the specified minimum or greater than the specified maximum, the channel
adds four (4) to the output.
Kurtosis detect
On: Select to enable kurtosis detection.
o
Maximum: Specify the maximum kurtosis value. If the kurtosis coefficient for
o
the data in the analysis window is greater than the specified maximum value,
the channel adds eight (8) to the output. The following equation is used to
calculate the kurtosis coefficient, K:
number of data samples in the analysis window and
samples in the analysis window.
4.4.3 Bitmap trigger
The Bitmap trigger computed channel produces a logical output based on the match
of the input bitmap channel and the user-specified bitmap mask. Use with an
Anomaly detect computed channel to generate a trigger when a defined anomaly is
detected.
Bitmap check mode: Set the trigger mode for the computed channel.
Any bit in mask set: If any bit in the specified bit mask is set, the output value
o
is TRUE; otherwise it is FALSE.
All bits in mask set: If all bits in the specified bit mask are set, the output
o
value is TRUE; otherwise it is FALSE.
Bit mask: Enter the desired bit mask as an integer from 1-255.
Invert: If selected, the output logic defined by the Bitmap check mode is inverted.
Note that using inversion can identify anomaly-marked data segments and output
a trigger stream to gate out these data segments in other computed channels or
DataModes™.
4.4.4 Directional velocity
The Directional velocity computed channel generates a signed velocity output from
two input channels. One input channel is the unsigned velocity and the second input
channel is a position channel to set the sign of the output value.
NOTE
Measurand and Units are inherited from the selected velocity input channel.
Description and Range values are initialized on selection of the velocity input
channel.
Velocity channel: Set the velocity input channel. In the edit dialog, the channel
sample rate is displayed in Hz.
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4 Setting up and running a test
where, n is the
is the mean of the data
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