A particulate foodstuff in a production line is compacted and caused to travel past a measuring device in a continuous stream. As the stream moves by the measuring device, the latter exposes successive portions of the stream to near infrared light having a spectrum of wavelengths. Each portion is exposed...http://www.google.ca/patents/US5448069?utm_source=gb-gplus-sharePatent US5448069 - Infrared measurement of constituents of particulate foodstuffs
