Circuits for the Measurement of Remote Resistive Sensors: A Review

In this article, electronic read-out circuits recently proposed for the measurement of remote resistive sensors are presented and critically reviewed. This is carried out for remote resistive sensors with a two-, three-, and four-wire interconnection and also for resistive sensor bridges with a five- and six-wire topology. For each of the previous scenarios, a discussion is provided about conventional and novel read-out circuits, as well as the corresponding limitations. In addition, for each of the scenarios, the novel read-out circuits lately proposed in the literature are compared with each other in terms of different performance parameters. For the sensors and circuits community, this review has a twofold benefit. On the one hand, this is a summary that identifies the pros and cons of the different circuits so as to correctly select the most appropriate alternative for a given application. On the other hand, current gaps and future opportunities are identified, thus opening future lines of research.