Auto Sensor - Sensor Linearity

Typically, the actual sensor output static characteristic curve is not linear. In practice, in order to make the instrument readings with a uniform scale, often a fitting line approximately represents the actual characteristic curve, linearity (nonlinearity) is the degree of approximation of a performance index.
The selection of fitting a straight line with a variety of methods. If the zero point of the input and the output is connected to the full-scale theory of linear as fitting a straight line; or characteristic points on the curve with the sum of squared deviations is minimized as the theoretical straight line fit, this proposed method of least squares fitting straight line is called fit straight line.Automotive sensor - sensor sensitivitySensitivity of Crank Sensor is in the steady state operation of the volume variation of the input change △ y △ x ratio.It is the output of an input characteristics of the slope. If the sensor output and the significant linear relationship between the input, the sensitivity S is a constant. Otherwise, it changes with the input change.
Dimensionless sensitivity is the output, input quantities dimensionless ratio. For example, a displacement sensor, the displacement 1mm, the output voltage is 200mV, then the sensitivity should be expressed as 200mV/mm.
When Crank Position Sensor output, the input of the same dimension, the sensitivity may be understood to magnification.
Improve the sensitivity, a higher measurement accuracy. However, the higher the sensitivity, the more narrow range, stability is often worse.