Design,Development,Fabrication and Testing of a Portable Self-Contained Respirable Dust Mass Monitor,

摘要

This final report describes a program whose objective was to design,develop,fabricate,and test an airborne mass monitor for unattended and recording measurements of the concentration of dust in mining environments. Sensing collection are performed by beta-radiation attenuation and inertial implementation,respectively. The instrument is portable,battery or line operated provides a digital printout of the mass concentration during each selection sampling period,as well as the accumulated mass of dust,and the elapsed sampling time.