<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A direct resistive sensor interface to a micro- controller reported earlier, works well only if the sensor element is very close to the micro-controller pins. If the sensor element is at a distance from the micro-controller then the lead resistance due to connecting wires between resistive sensor element and the modified scheme of direct sensor interface to micro-controller is presented here. In the proposed scheme, the effect of lead resistances is compensated and thus the proposed direct resistive sensor interface to a micro-controller works well even if the sensor is kept at distance and connected through long connecting wires. Since the lead wire resistance is compensated, automatic temperature compensation (temperature effect of lead wires) is obtained. The results obtained from simulation and experimental results recorded from a prototype of the proposed scheme establishes the effectiveness of the proposed method in eliminating the effect of lead resistance in the output. Worst-case error noted in the simulation output was &lt; ± 0.23 % and the worst-case error of the prototype unit was found to be &lt; ± 0.33 %.</p></abstract>

A direct resistive sensor interface to a micro- controller reported earlier, works well only if the sensor element is very close to the micro-controller pins. If the sensor element is at a distance from the micro-controller then the lead resistance due to connecting wires between resistive sensor element and the modified scheme of direct sensor interface to micro-controller is presented here. In the proposed scheme, the effect of lead resistances is compensated and thus the proposed direct resistive sensor interface to a micro-controller works well even if the sensor is kept at distance and connected through long connecting wires. Since the lead wire resistance is compensated, automatic temperature compensation (temperature effect of lead wires) is obtained. The results obtained from simulation and experimental results recorded from a prototype of the proposed scheme establishes the effectiveness of the proposed method in eliminating the effect of lead resistance in the output. Worst-case error noted in the simulation output was < ± 0.23 % and the worst-case error of the prototype unit was found to be < ± 0.33 %.

A Microcontroller Sensor Interface Suitable for Resistive Sensors with Large Lead Resistance

International Journal on Smart Sensing and Intelligent Systems

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A direct resistive sensor interface to a micro- controller reported earlier, works well only if the sensor element is very close to the micro-controller pins....

A Microcontroller Sensor Interface Suitable for Resistive Sensors with Large Lead Resistance

Publié en ligne: 15 févr. 2020

Pages: 1 - 5

DOI: https://doi.org/10.21307/ijssis-2019-096

Mots clés
Lead resistance compensation, Resistive sensors, Micro-controller sensor interface, Direct sensor interface

© 2019 Authors., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A Microcontroller Sensor Interface Suitable for Resistive Sensors with Large Lead Resistance

Publié en ligne: 15 févr. 2020

Pages: 1 - 5

DOI: https://doi.org/10.21307/ijssis-2019-096

Mots clésLead resistance compensation, Resistive sensors, Micro-controller sensor interface, Direct sensor interface

© 2019 Authors., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
Lead resistance compensation, Resistive sensors, Micro-controller sensor interface, Direct sensor interface