Research Center for Ubiquitous MEMS and Micro Engineering (UMEMSME), National Institute of Advanced Industrial Science and Technology (AIST), Namiki 1-2-1, Tsukuba 305-8564, Japan.
College of Agriculture Ibaraki University, Chuo Ami Inashiki 3-21-1, Mito 300-0393, Japan.
Sensors (Basel). 2018 Mar 26;18(4):979. doi: 10.3390/s18040979.
In this paper, we report the development, evaluation, and application of ultra-small low-power wireless sensor nodes for advancing animal husbandry, as well as for innovation of medical technologies. A radio frequency identification (RFID) chip with hybrid interface and neglectable power consumption was introduced to enable switching of ON/OFF and measurement mode after implantation. A wireless power transmission system with a maximum efficiency of 70% and an access distance of up to 5 cm was developed to allow the sensor node to survive for a duration of several weeks from a few minutes' remote charge. The results of field tests using laboratory mice and a cow indicated the high accuracy of the collected biological data and bio-compatibility of the package. As a result of extensive application of the above technologies, a fully solid wireless pH sensor and a surgical navigation system using artificial magnetic field and a 3D MEMS magnetic sensor are introduced in this paper, and the preliminary experimental results are presented and discussed.
本文介绍了超小型低功耗无线传感器节点的开发、评估和应用，旨在推动畜牧业的发展，并为医疗技术的创新提供支持。我们引入了一种具有混合接口和可忽略功耗的射频识别（RFID）芯片，以便在植入后能够切换开启/关闭和测量模式。我们还开发了一种最大效率为 70%、接入距离可达 5 厘米的无线功率传输系统，使传感器节点能够在几分钟的远程充电后持续工作数周。通过使用实验室小鼠和奶牛进行现场测试，结果表明所采集的生物数据具有高精度，且封装具有良好的生物兼容性。基于上述技术的广泛应用，本文还介绍了一种全固态无线 pH 传感器和一种使用人工磁场和 3D MEMS 磁传感器的手术导航系统，并给出了初步的实验结果和讨论。
