A serial flexible humidity sensor based on graphene oxide (GO) fiber and quartz crystal resonator (QCR) was proposed. The serial sensing structure was formed by electrically connecting the QCR with GO fiber embedded in textile in series. This structure became more adjustable by separating the transducing part and sensing part. The feasibility of the serial sensing structure was verified by simulation and experiment. Fabrication of GO fiber was introduced and the electrical properties of GO fiber responding to the relative humidity were measured. The QCR was excited at a frequency of 5.003 MHz. The total frequency shift of the sensor was 91 Hz from 10%RH to 90%RH with a hysteresis of 6.58%. The sensitivity was 2.98 Hz/%RH at 80%RH. The response time was 130 s and the recovery time was 36 s from 20%RH to 80%RH. The sensor has good stability with about 1% variation. This serial sensing structure has the potential to realize a humidity sensor with higher performance.

提出了一种基于氧化石墨烯（GO）纤维和石英晶体谐振器（QCR）的串联柔性湿度传感器。串联传感结构是通过将QCR与嵌入在纺织品中的GO光纤串联电连接而形成的。通过分离换能部分和感测部分，该结构变得更加可调节。通过仿真和实验验证了串行传感结构的可行性。介绍了GO纤维的制备，并测量了GO纤维对相对湿度的响应。QCR在5.003 MHz的频率下被激发。传感器的总频移从10％RH到90％RH为91 Hz，滞后为6.58％。灵敏度在80％RH时为2.98 Hz /％RH。从20％RH到80％RH，响应时间为130 s，恢复时间为36 s。该传感器具有约1％的变化，具有良好的稳定性。这种串行感测结构具有实现更高性能的湿度传感器的潜力。