Hand-held plant leaf movement azimuth angle electronic measuring instrument

• Main Authors: LUO HONGHAI, YI XIAOPING, YAO HESHENG, ZHANG WANGFENG, ZHANG YALI, CHEN MINGJIE, TANG TENGFEI
• Format: Patent
• Language: Chinese; English
• Published: 12.06.2013
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention relates to a plant leaf movement azimuth angle electronic measuring instrument that can measure leaf movement angle variation during heliotropic movement of plant leaves. For the plant leaf movement azimuth angle electronic measuring instrument, a frame main body is mainly provided with a power box, a data acquisition device, a displayer, a power switch, a main controller and connecting lines. The data acquisition device comprises a suspension angle sliding rail and a direction angle sliding rail that are arranged below the frame main body. Being similar in structure, the suspension angle sliding rail and the direction angle sliding rail both include a semicircular narrow-strip lower backing plate and a semicircular narrow-strip upper baffle plate. The lower backing plate is provided with two sliding rail strips similar in shape, and the two sliding rail strips are both wound with resistance wires. And a metal ball is arranged over the two sliding rail strips wound with resistance wires. The ele