重复性
液化石油气
灵敏度(控制系统)
灵活性(工程)
电压
汽车工程
超级电容器
热电发电机
航程(航空)
电气工程
微型计算机
响应时间
功率(物理)
热电效应
材料科学
环境科学
工程类
炸薯条
计算机科学
电子工程
废物管理
化学
电极
航空航天工程
物理
计算机图形学(图像)
数学
物理化学
色谱法
量子力学
电化学
统计
热力学
作者
Yuhang Fan,Changxin Liu,Kaiyuan Zhao,Tong Shao,Ruoshui Chen,Yilin Pan,Zhijian Liu,Xinxiang Pan
标识
DOI:10.1080/15435075.2023.2194377
摘要
Harmful gas leakage often occurs in the engine room of ocean-going ships. Among these harmful gases, NO2 gas accounts for a high proportion. Generally, sensors for detecting NO2 gas in the machinery space have problems such as small detection range, poor sensitivity, and poor stability. Therefore, we present a novel self-powered sensing prototype using electronic printing. This prototype consists of a flexible thermoelectric film and a flexible gas sensor. At 80K temperature difference, the maximum output voltage and power of the prototype reached 102.5 mv and 64.5μw, respectively. The prototype can charge the supercapacitor (5.5 V, 0.47uF) to 5.5 v in 10 minutes. The sensitivity, selectivity and repeatability of gas sensor in different concentration gas environment were studied. The results show that in the range of 20 -100 ppm, the detection current of NO2 concentration curve is approximately linear. The prototype has good stability and repeatability. After 1,000 flexibility tests, the prototype still has high flexibility. After connecting the boost circuit, the prototype can drive the single chip microcomputer to realize the self-power supply and danger. This study provides a new way for the monitoring of harmful gases in the ship engine rooms.
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