| 摘要 |
An apparatus for quick and low cost calibration of a sensor. The device includes an amplifier, a switch, a gain circuit, an offset circuit and a memory. The memory, which may be serial written memory including static RAM and a shift register, stores gain and offset coefficients for use by the gain and offset circuits and the amplifier. The gain and offset circuits may include digital to analog converters for converting the stored gain and offset digital values into analog equivalents. The gain and offset values are calculated by first measuring am uncorrected sensor output at no input and at full scale output. These values are then used in an equation to calculate offset and gain values.
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