The design of a high-speed, low-cost, generic analogue preconditioning system, which is capable of interfacing with a wide variety of transducers, is described. A multi-purpose, configurable data acquisition module, which is also capable of data generation, is presented. Software support is provided by advanced signal analysis and innovative presentation algorithms that are implemented on a powerful embedded digital signal processor.
Precision voltage-feedback and high-speed current-feedback operational amplifiers are combined to form adaptable, front-end multi-stage composite amplifiers. These distinctive composite amplifiers retain the individual qualities of their incorporated parts. The amplifier’s output voltage range is designed to match a standard ADC input voltage range. Easy to implement data converter circuitry and front-end signal amplification components were implemented on a detachable printed circuit daughterboard. A resourceful method of interfacing allows a series o...