US 12,392,745 B2
Capacitive soil moisture detection device and system
Zhongdong Huang, Fuzhou (CN); and Jie Yang, Fuzhou (CN)
Assigned to Fujian Tiancheng Baode Intelligent Technology Co., Ltd., Fuzhou (CN)
Filed by Fujian Tiancheng Baode Intelligent Technology Co., Ltd., Fuzhou (CN)
Filed on Dec. 7, 2023, as Appl. No. 18/532,179.
Claims priority of application No. 202311409919.1 (CN), filed on Oct. 27, 2023.
Prior Publication US 2025/0137961 A1, May 1, 2025
Int. Cl. G01N 27/22 (2006.01); G01N 33/24 (2006.01)
CPC G01N 27/223 (2013.01) [G01N 27/226 (2013.01); G01N 27/227 (2013.01); G01N 33/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A capacitive soil moisture detection device, comprising a substrate, an outer shell, a circuit board, and a main control chip,
wherein the main control chip is provided on the circuit board, the circuit board is provided with a moisture measurement circuit that is arranged in the outer shell; a connection end of the substrate is clamp connection to the outer shell;
wherein an inner of the substrate is provided with at least two electrode pieces, the electrode pieces are facing to each other and arranged spaced apart; each electrode piece is coated with a substrate material; a pin of one of the electrode pieces is connected to the main control chip, and an adjacent other electrode piece is provided with a grounding terminal.