Soil moisture content long-term monitoring device and monitoring method based on sound velocity inversion

• Main Authors: LIN JIAQUAN, CHEN YINGYI, LI JUN, QIU XINRUI, MA ZHE, WU PENGFEI, XIA JUAN, YE YONG, WU YUANSHUI, CHEN YUAN, ZHANG MEIQI
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a soil moisture content long-term monitoring device and monitoring method based on sound velocity inversion. The monitoring device comprises a bracket, a solar power supply module, a soil moisture content acquisition module and a control module, the soil moisture content acquisition module comprises a sound velocity detection module, a temperature sensing module and a pressure sensing module; the sound velocity detection module comprises a sound wave emission probe and a sound wave acquisition probe; the sound wave emission probe is used for emitting sound waves with specific frequency and transmitting sound wave signals to the sound wave acquisition probe through a soil medium; the sound wave acquisition probe is internally provided with a signal amplification circuit and a signal modulation circuit and is used for receiving a sound wave signal which is generated by the sound wave emission probe and penetrates through a soil medium; according to the long-term monitoring device for th