The calibration procedure that is required for manufacturing accurate sensors is, presently, time-consuming and difficult to automate. Hence, it contributes considerably to the sensor fabrications costs.
Integrated Smart Sensors: Design and Calibration explains how to include how to digitally programmable calibration feature in an integrated smart sensor. several related topic are discussed as well, including calibration and linearization techniques. calibration cirquits using analog signal processing, digital signal processing, or a mixed-mode technique based on sigma-delta modulation are presented, as well as the other cirquits needed in a smart sensor.
the combination of a programmable calobration cirquit and a digital bus interface, integrated together with a sensor enables automation of the calibration procedure for a large batch of such integratedsmart sensors at a time. This will help to reduce the costs of the sensor calibration, and thus, to decrease the price per sensor, in particular for mass-prodeced sensors.
