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US09188531B2 Method and apparatus for gold detection 有权
金检测方法和装置

Method and apparatus for gold detection
Abstract:
A gold detection apparatus capable of detecting gold in field mineral samples such as rock or soil with little or no preparation. Light in red, green and violet wavelengths is directed at a surface of a mineral sample and the reflected light intensity is measured by an array of sensors or photosites. Based on the characteristic reflectance properties of gold, the reflected light intensity in each wavelength is used to determine the presence of gold particles and the gold concentration of the mineral sample.
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