光纤布拉格光栅在医用蒸汽灭菌器温度监测的应用  

Application of fiber Bragg grating in temperature monitoring of medical steam sterilizer

作　　者：饶春芳[1] 吴锴 胡友德[2] 陶欢 董珺 张聪睿 吴超 RAO Chun-fang;WU Kai;HU You-de;TAO Huan;DONG Jun;ZHANG Cong-rui;WU Chao(Jiangxi Key Laboratory of Communication and Optoelectronics, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330000, China;Department of Stomatology, Jiangxi Provincial People's Hospital, Nanchang 330000, China)

机构地区：[1]江西师范大学物理与通信电子学院,江西省通信与光电子重点实验室,江西南昌330000 [2]江西省人民医院口腔科,江西南昌330000

出　　处：《光学精密工程》2020年第9期1930-1938,共9页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.81460109,No.11664014,No.11964014)。

摘　　要：为了解决由于检测技术原因而导致的医用蒸汽灭菌器温度监测执行率低、设备合格率低等问题,设计了基于光纤布拉格光栅的医用蒸汽灭菌器温度监测系统,对整个灭菌过程中温度监测的可行性、精准性和可靠性进行了研究。根据医用蒸汽灭菌器温度监测的相关标准,运用波分复用技术设计了光纤光栅串传感器件。接着,基于光纤光栅串传感器件搭建了相应的温度监测系统,并对整个灭菌过程进行了实时温度监测。最后,通过分析灭菌过程中各阶段温度随时间的变化,有效灭菌温度下的灭菌时间,灭菌器空载、半载及满载腔内各点之间的最大温度差,来验证该检测系统的性能。监测结果准确地给出了灭菌器灭菌过程中各阶段温度随时间的变化,所测灭菌器的有效灭菌时间为7.8 min,空载时腔内各点的最大温差在2℃以内,而满载时可达4.5℃。此系统的温度测量范围、分辨率及精度,时间记录精度及数据存贮能力均达到国家及行业标准要求,并具备多点监测成本低及可进入狭小区域监测等突出优势。To improve the low rate of temperature monitoring of medical steam sterilizers,caused by testing technology,a temperature monitoring system based on a fiber Bragg grating(FBG)was designed,and its feasibility,accuracy,and reliability of temperature measurement for the whole sterilization process were studied.First,to meet the related standards for temperature monitoring of medical steam sterilizers,an FBG array sensor was designed using wavelength-division multiplexing technology.Then,the corresponding temperature monitoring system was constructed,and the whole sterilization process was monitored in real time.Finally,the accuracy of the detection system was verified by analyzing the temperature changes with time at each stage of the sterilization process,the sterilization time under the effective sterilization temperature range,and the maximum temperature difference between points under no-load,half-load,and full-load.The monitoring results accurately showed the temperature changing with time during each stage of the sterilization process.The effective sterilization time is 7.8 min for the monitored sterilizer,and the maximum temperature difference of each point in the cavity is within 2℃for no-load and 4.5℃for full-load.The temperature measure range and resolution,time recording accuracy,and data storage capacity of the system met national and industry standards.Moreover,the proposed system possess superior characteristics over traditional systems,displaying the potential for economical multi-point monitoring and the ability to enter the narrow area for monitoring.

关 键 词：光纤布拉格光栅 实时温度监测 医用蒸汽灭菌器 可行性 监测系统 

分 类 号：TN253[电子电信—物理电子学]