低成本光散射颗粒物传感器性能影响因素综述

Summary of Factors Influencing the Performance of Low-cost Light Scattering Particle Sensors

低成本光散射颗粒物传感器由于体积小、电力驱动要求低、能实时监测的性能,极大地降低了环境空气网格化监测的成本,具有巨大的应用前景。但该类颗粒物传感器在实际使用中,输出结果受到多方因素的影响。研究人员已对不同环境条件下、长期使用过程中以及在时空分布状态下监测数据的可靠性等方面进行了探索和研究。由于目前国内没有相关标准,因而检测参数、检测方法都缺乏统一性和可比性。针对低成本光散射颗粒物传感器性能特征影响因素研究进行综述,为该类传感器性能的提升以及计量评价体系的建立提供合理化建议。

Due to the small size,low requirements for electric drive and real-time monitoring performance,low-cost particulate matter sensors greatly reduce the cost of environmental air grid monitoring,which has a huge application prospect.Although the cost is reduced,the output of the particle sensor is affected by many factors.Many previous studies investigated the influence of particle properties,environmental conditions on the performance of particle sensors,as well as the output quality of particle sensors in long-term operation.At present,lack of relevant standards about the quality,detection parameters and methods of low-cost particle sensors resulting in the problem on comparability and uniformity.To promote the quality and provide a scientific measuring system of low-cost particle sensors,the factors influencing the performance of low-cost particle sensors in previous studies were reviewed.