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

Chun-fang RAO; Kai WU; You-de HU; Huan TAO; Jun DONG; Cong-rui ZHANG; Chao WU

doi:10.37188/OPE.20202809.1930

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

Modern Applied Optics | 更新时间：2020-09-28

- Application of fiber Bragg grating in temperature monitoring of medical steam sterilizer
- Optics and Precision Engineering Vol. 28, Issue 9, Pages: 1930-1938(2020)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.37188/OPE.20202809.1930
  CLC： TN253
- Received：05 March 2020，
  
  Revised：29 April 2020，
  
  Accepted：29 April 2020，
  
  Published：25 September 2020
- 稿件说明：
移动端阅览
Chun-fang RAO, Kai WU, You-de HU, et al. Application of fiber Bragg grating in temperature monitoring of medical steam sterilizer[J]. Optics and precision engineering, 2020, 28(9): 1930-1938.
DOI：

Chun-fang RAO, Kai WU, You-de HU, et al. Application of fiber Bragg grating in temperature monitoring of medical steam sterilizer[J]. Optics and precision engineering, 2020, 28(9): 1930-1938. DOI： 10.37188/OPE.20202809.1930.

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。

Abstract

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

Keywords

references

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