Continuous Measurement of Particulate Emissions - A Technique Based on Electrostatic Sensing and Digital Signal Processing

Online continuous monitoring and measurement of mass concentration and emissions of particles from industrial chimneys and flues play an increasingly important role in the monitoring and control of particulate emissions. Despite the intrinsic limitations of the electrostatic sensing technology, its combination with digital signal processing algorithms offers a simple and cost-effective means of measuring the mass concentration, velocity, and mass emissions of particles from industrial chimneys and flues. Devices and systems operating on electrostatic sensing principles are now being used in thousands of process applications across many industrial sectors. It is envisaged that the electrostatic sensing technology will play an increasingly important part in the environmental metrology for particulate emissions.