Micro spectrograph for field measurement

摘要

The utility model belongs to the field of measurement technology and relates to a micro spectrometer The mini spectrograph is connected to a smart phone and contains an input slot,Planar reflection strip diffraction grating,Two spherical mirrors,Recording element. The optical element of the spectrometer is a cell made of optically transparent acrylic acid with a refractive index of 1.50 and a configuration of black transmittance. Entrance gap,The input mirror and diffraction grating are located on the cell surface to provide second-order visible spectrum diffraction. The output spherical mirror collects the diffracted light and focuses it on the output POVScrew with recording element. Linear photodiode matrix is used as recording element The technical result is to simplify the manufacturing of the device and the processing of the single chip microcomputer. Three liters.