Patent ID: 9389175
Filing Date: 2016-07-12
CPC Classification: G01N

Claim Text:
1. A system to approximate somatic cell count of untreated mammalian milk, the system comprising: a source of incident light, the incident light having an incident light central axis; a forward scattered light detector, the forward scattered light detector being intersected by the incident light central axis; a sample container containing an untreated milk sample with white blood cells, the sample container between the source of incident light and the forward scattered light detector such that the incident light central axis passes through the untreated milk sample in the sample container to produce an incident light path length prior to being detected by the forward scattered light detector, whereby scattering of the incident light by white blood cells along the path length produces an elastic scattered peak bracketed by a narrowly forward angular range, thereby producing a greatest intensity of the elastic scattering peak being at a scattered light peak angle away from the incident light central axis; thereby producing a range of intensities of incident light as a function of angles away from the incident light central axis over at least part of the narrowly forward angular range, the range of intensities including a peak detection of the scattered peak: whereby the peak detection includes an angle detection of the scattered light peak angle; and a processor for calculating a forward scattered light factor (FSL) which includes the angle detection of the scattered light peak angle and at least one datum from the range of intensities for approximating the somatic cell count of the milk sample.