FIELD: physics, computer engineering.
SUBSTANCE: group of inventions relates to analogue-to-digital conversion and can be used in control and monitoring systems. A process variable transmitter is used to measure a process variable, and, in doing so, dynamically changes the resolution of the A/D converter based on the measured value of the analogue input signal. This can be done through automatic configurable resolution gain adjustment based on the value of the analogue signal being measured, by normalising the input signal being measured so that it is centred in an optimal resolution window of the A/D converter, or by adjusting the voltage reference provided to the A/D converter.
EFFECT: providing dynamically variable conversion resolution.
20 cl, 8 dwg
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