MTS SWIFT 30 Sensor - Manual (Page 63)

Select a Zero Method
SWIFT 30 Sensors Setting up the Transducer Interface 63
3 Use this algorithm if
you do not need to
mechanically level the
SWIFT sensor
The transducer is
unloaded during the
zero process.
(AngleMode=0)
Both the Angle Zero and Bridge Zero buttons are functional.
This algorithm will perform both angle zero and bridge zero
processes.
In the Bridge Zero process,
the TI will average the data
and remove the DC offset by
setting the zero DACs to the
average value.
In the Angle Zero process, the TI
will collect one revolution of raw
bridge data, perform a peak/valley
analysis via sine curve fit for X1,
X2, Z1, Z2, and determine the
angle that will result in positive Z
facing upward.
This process assumes that the
wheel is hanging, so that the peak
vehicle Z axis is read 180° out of
phase (transducer peaks are the
weight of the wheel, in a
downward direction). The angle
determined is then shifted by
180°.
4 This is the
recommended
algorithm for spinning
applications.
You will need to
mechanically level the
SWIFT sensor
The transducer is
unloaded during the
zero process.
(AngleMode=0)
Both the Angle Zero and Bridge Zero buttons are functional.
This algorithm will perform both angle zero and bridge zero
processes.
The Bridge Zero button is pressed when the Z beam is facing up.
The Angle Zero button is pressed after the sensor is rotated 90° in
either the plus or minus direction.
Using the data collected from these two positions, all bridge zeros
and angle zeros are computed.
Zero Algorithm Values Defined (part 2 of 2)
Z ERO A LGORITHM W HEN TO U SE B RIDGE Z ERO A NGLE Z ERO