AN 1002: Definitions of Electrolytic Tilt Sensor Operating Specifications

Terms and Definitions

Operating RangeThe maximum range over which a monotonic output can be observed.
Linear RangeThe maximum range over which the deviation of the output from a linear best fit is within a specified percentage value.
LinearityThe maximum deviation from a linear output as a percentage of the measurement range.
RepeatabilityThe maximum deviation in output when the sensor is tilted and then returned to its original position.
ResolutionThe minimum incremental position change that generates a monotonic output.
SymmetryThe maximum deviation in output between two symmetrical positions on either side of null.
Maximum Current at NullThe maximum recommended current through the sensor at null at 23° C which will not cause damage to the sensor.
Null ImpedanceThe impedance between the outer electrodes when the sensor is in the null position at 23° C.
Operating TemperatureThe temperature range over which typical output behavior is observed.
Storage TemperatureThe temperature range that will not physically or chemically alter the sensor while it is not in use.
24 Hour StabilityThe maximum variation in sensor output over a 24 hour period while the sensor remains stationary at null.
Null Temperature CoefficientThe maximum output change at null per degree of temperature change above or below 23° C.
Scale Temperature CoefficientA coefficient to compensate for the change in gain caused by variations in temperature from 23° C.
Null OffsetThe maximum deviation between the electrical null of the sensor and mechanical null where the sensor is parallel to the surface of the earth.
Cross Axis ErrorMaximum deviation of the output on one axis while tilting along the perpendicular axis.
Time ConstantThe amount of times it takes the sensor to output a value which is at least 63.2% of the final output.