Portable soil organic matter content detection device based on diffuse reflection spectrum

• Main Authors: XU DONG, QU JIAPENG, SHANG HUIWEI, HU GUOTIAN
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

According to the portable soil organic matter content detection device based on the diffuse reflection spectrum, the split type design of a probe and a controller is adopted, the probe comprises a light blocking boss, a light source, a plano-convex lens, a photoelectric sensor and a shielding plate, and the controller comprises a power source, a single chip microcomputer, a circuit board, an SD card and a liquid crystal screen. The device is characterized in that the visible near-infrared LED light source is annularly distributed in the probe, the plano-convex lens is installed at the bottom of the probe and connected with the light blocking boss, the photoelectric sensor is installed over the light blocking boss, and the shielding plate and the light blocking boss are used for preventing light emitted by the light source from directly irradiating the light sensing surface of the photoelectric sensor. The LED light source and the photoelectric sensor are connected with a circuit board in the controller throug