Kaman KD-5100 - Manual (Page 16)

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8-3b. The degree of error is related to the angle between the sensor and target face. As a
general rule, for angles ± 1o or less, there is virtually no problem with cross-axis
sensitivity.
Sensor/target angle is a function of the distance between the sensor and target pivot,
and the measuring range. A sensor with a range of ± 10 mils mounted 10 mils from
the pivot will experience 45o of tilt at the end points. This is an extreme example but
suffices to illustrate the point. A sensor with a ± 10 mil range must be mounted
approximately 550 mils (13.9mm – a little over ½ inch) from the pivot to achieve a 1
o
angle between sensor and target.
8-3c. This phenomenon is related to basic physics and is stable, repeatable, small in
magnitude, and can therefore be characterized. If necessary, users can provide a
computer correction scheme.
8-4. Cross-axis sensitivity is not a problem for the majority of applications. If you anticipate or
experience the problem, contact Kaman Instrumentation for test data, which specifies under
which conditions and to what degree cross-axis sensitivity exists.