Humidity Monitoring System Based on Fiber-optic Humidity Sensor
The side leakage and reosmosis of diapers affect the health of users,and the monitoring methods of urine display by naked eye and touch have obvious hysteresis.In this paper,a humidity monitoring system based on fiber-optical humidity sensor is designed to monitor the side leakage and reosmosis of diapers.The influence of pressure on monitoring accuracy is reduced by improving the sensor,and simulation experiments are carried out u-sing COMSOL software.The experimental results show that when the pressure is 0-60KN,the wavelength of the fi-ber-optical humidity sensor do not shifted obviously,and the monitoring system is not sensitive to pressure.When the relative humidity is 10%-60%RH,the wavelength and relative humidity are almost linear with good repeatabili-ty,and the monitoring system can effectively monitor slight fluctuations in relative humidity.