发明名称 Optical sensor for determining dry matter content of e.g. product, has LEDs distributed in circle to ensure homogeneous illumination of product, and photodetector for receiving spectrum backscattered directly by product
摘要 <p>The sensor has a set of LEDs (2) for illuminating a product, and an electronic circuit for processing a spectrum backscattered by the product, where the LEDs are distributed in a circle to ensure homogeneous illumination of the product. A photodetector (3) is placed at a center of the circle to receive the spectrum backscattered directly by the product. The LEDs emit the same frequency modulated signal in a near infrared with a defined carrier frequency and a defined modulation frequency. An independent claim is also included for a method for determining dry matter content of a product by an optical sensor.</p>
申请公布号 FR2982366(A1) 申请公布日期 2013.05.10
申请号 FR20110060091 申请日期 2011.11.07
申请人 CENTRE NATIONAL DE MACHINISME AGRICOLE DU GENIE RURAL DES EAUX ET DES FORETS (CEMAGREF);SILIOS TECHNOLOGIES 发明人 BENDOULA RYAD;ROGER JEAN-MICHEL;TISSERAND STEPHANE;HUBERT MARC
分类号 G01N21/35 主分类号 G01N21/35
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