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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Quartz Crystal Resonator Sensor With Printed-on-Crystal Coil for Dual-Harmonic Electromagnetic Contactless Interrogation
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Quartz Crystal Resonator Sensor With Printed-on-Crystal Coil for Dual-Harmonic Electromagnetic Contactless Interrogation

机译：具有印刷晶体线圈的石英晶体谐振器传感器，用于双谐波电磁非接触式询问

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摘要

A novel quartz crystal resonator (QCR) sensor with a printed-on-crystal conductive coil, named sensor coil, is presented. The sensor coil electromagnetically coupled to an external readout coil allow to perform contactless interrogation of the QCR working as a stand-alone sensor unit. A frequency-domain readout technique is adopted that allows dual-harmonic operation by detecting the QCR frequencies of the fundamental and third harmonic, and offers first-order independence from the stand-off distance between the sensor and the readout unit. The QCR electrodes and sensor coil have been printed on a 330- ${mu }ext{m}$ -thick bare AT-cut quartz crystal exploiting the aerosol jet printing technology. The fabricated QCR sensor has reference values of the fundamental and third harmonic frequencies at 4.77 and 14.22 MHz, respectively. Distance-independent contactless operation has been demonstrated for distances up to 12 mm. The readout frequencies deviate from reference values less than 10 and 90 ppm for the fundamental and third harmonic, respectively, thus validating the proposed principle.
机译：提出了一种具有印刷晶体导电线圈的新型石英晶体谐振器（QCR）传感器，称为传感器线圈。电磁耦合到外部读出线圈的传感器线圈允许执行QCR作为独立传感器单元的非接触式询问。采用频率域读出技术，其通过检测基本和三次谐波的QCR频率，并从传感器和读出单元之间提供一阶独立性。 QCR电极和传感器线圈已打印在330- $ { mu} text {m} $-thick bare an-cut arch石英水晶开采气溶胶喷射印刷技术。制造的QCR传感器分别具有4.77和14.22MHz的基本和三次谐波的参考值。已经对长达12毫米的距离进行了距离无关的非接触式操作。读出频率分别偏离小于10和90ppm的参考值，分别用于基本和三次谐波，从而验证所提出的原理。

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