CAJ | 학술논문

无线无源传感器在工业领域具有重要的应用。设计了一种基于高介电常数陶瓷基板的无线无源LC谐振温度传感器,采用电感耦合的方式无线测试了传感器在不同温度下的特性。测试结果表明所制作的无线无源温度传感器谐振频率为1.2 MHz,随着温度的升高其谐振频率线性降低,灵敏度为2.3 kHz/℃。制作的器件实现了非接触式的温度测量,可以在比较恶劣的环境下使用。
무선무원전감기재공업영역구유중요적응용。설계료일충기우고개전상수도자기판적무선무원LC해진온도전감기,채용전감우합적방식무선측시료전감기재불동온도하적특성。측시결과표명소제작적무선무원온도전감기해진빈솔위1.2 MHz,수착온도적승고기해진빈솔선성강저,령민도위2.3 kHz/℃。제작적기건실현료비접촉식적온도측량,가이재비교악렬적배경하사용。
Wireless passive sensors have great potential applications in industry. A wireless passive LC resonant tem-perature sensor based on ceramic with high dielectric constant was designed and prepared in this work. The characteristics of the sensor had been measured under different temperature by wireless inductor coupling. The results show that the resonant frequency of the wireless passive temperature sensor is 1. 2 MHz, The resonant frequency of the sensor decreases linearly with the increasing of the ambient temperature. The temperature sensitivity of the sensor is 2. 3 kHz/℃. Temperature detection is realized wirelessly with the sensor. The designed sensor is suitable for working in harsh environments for temperature sensing.