Device for detecting moisture content of panax notoginseng slices by adopting near-infrared holography

The invention discloses a device for detecting the moisture content of panax notoginseng slices by adopting near-infrared holography, and belongs to the field of near-infrared holography application.According to the device, an infrared holographic detection light path is designed; a reflective infrared hologram of panax notoginseng slices is shot; an infrared laser device of which the central wavelength is 1.94 [mu]m and infrared light is easily absorbed by moisture and an infrared laser device of which the central wavelength is 1.8 [mu]m and infrared light is not absorbed by moisture are selected as a detection light source, and a He-Ne laser device of which the central wavelength is 632.8 nm is selected as a guide detection light source; and MATLAB programming is used to reproduce an original image of the shot infrared hologram, and the reproduced images of the infrared holograms shot by two different wavelengths is subtracted to obtain information containing moisture content. According to the invention, th