Temperature Sensing System With Short-Range Wireless Sensor Based on Inductive Coupling

被引：4

作者：

Pinheiro Silva, Marcus Tadeu ^{[1
]}

Vasconcelos, Flavio Henrique ^{[2
]}

机构：

[1] Fed Ctr Technol Educ, Dept Elect, BR-30510000 Belo Horizonte, MG, Brazil

[2] Univ Fed Minas Gerais, Dept Elect Engn, BR-31270010 Belo Horizonte, MG, Brazil

来源：

IEEE SENSORS JOURNAL | 2011年 / 11卷 / 10期

关键词：

Inductive coupling; short-range wireless sensor; temperature sensor; MUTUAL INDUCTANCE; COILS; IMPLANT; DESIGN;

D O I：

10.1109/JSEN.2011.2140394

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents the theory, development, and results for a temperature sensing system that employs a wireless sensor with powering and communications based on inductive coupling. The theory of inductive coupling is presented along with a methodology that has been developed to determine the system elements in order to fulfill communication range and bandwidth requirements in a certain class of applications. A miniaturized wireless sensor was built (volume 3.2 cm(3)), and the whole system was validated by means of an experiment where the sensor was immersed in a water bath, in which the temperature was varied during 69 h in a cycle covering a span of 30 degrees C. Measurements had a high correlation with an accurate reference thermometer. It is shown that the interruption of the radio frequency (RF) field during the measurements is a useful method to improving the measurement quality. In the course of the validation experiment, this method reduced the standard deviation of the measures up 0.01 degrees C.

引用

页码：2469 / 2478

页数：10

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