期刊
MEASUREMENT
卷 213, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2023.112728
关键词
Direct interface circuits; Resistance-to-time-to-digital conversion; Resistive sensor; Time-based measurement
Direct Interface Circuits (DICs) are simple circuits used in readouts for all types of sensors, capable of performing resistance-to-time-to-digital conversion. This study presents two resistive DICs that estimate sensor resistance using a single charging-discharging process, simplifying the readout process without increasing hardware requirements. Experimental results demonstrate accurate estimation of Rx with relative errors below 0.8% and significant reduction in acquisition time and energy consumption by up to 75%.
Direct Interface Circuits (DICs) are simple circuits used in readouts for all types of sensors. For resistive sensors, all DICs perform a resistance-to-time-to-digital conversion using just the sensor, some calibration resistors, one or two capacitors, and a Digital Processor. These circuits require a variable number of charging and discharging cycles of a capacitor to estimate the sensor resistance, Rx, increasing both acquisition time and power con-sumption. This paper presents two resistive DICs capable of estimating Rx by means of a single charging -discharging process, simplifying the readout process. Furthermore, this is achieved without increasing hard-ware requirements. Only two time measurements are used to obtain Rx. Despite the simplicity of the new circuits, the experimental results show that relative errors of estimating Rx can be below 0.8 %, and this in a wide range of resistances of over 40 dB. Moreover, acquisition time and energy consumption can be reduced by up to 75 %.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据