Patent ID: 9677990
Date: 2017-06-13
CPC Classifications: G01N

Claim:
1. A particle counting system comprising: at least one particle sensor including at least one output channel generating an electrical signal for a particle passing through the sensor, where the electrical signal for the output channel includes at least a peak pulse height, where the peak pulse height is converted to a digital value based on previous calibration values to infer relative particulate size for the peak pulse height, where a plurality of peak pulse heights, that include the peak pulse height, are summed for a period of time to determine a summed value, where a density and at least one of a configurable and a fixed refractive index is applied to the summed value to infer total particle mass for the period, and where the summed value indicates a total particle mass for the period and is a more accurate particle mass for the period than an average mass calculated by multiplying a particle count by an average size for the output channel.