Diffusive gradients in thin films (DGT) probe test device for sediment core in lake and test method using the same

US11579049B2 · kind B2 · utility

Assignee

• CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES · CN

Inventors

• Zhihao Wu · 安丰镇, CN
• Shuhang Wang · Beijing, CN
• Xia Jiang · Sichuan, CN
• Bo Zhang · Beijing, CN
• Kun-Chih Wang · New Taipei, TW
• Wenwen Wang · Beijing, CN
• Junyi Chen · 流花街道, CN
• Li Zhao · Beijing, CN
• Qing Cai · Beijing, CN
• Cheng Yao · Beijing, CN

Key dates

• Filing date: Jan 6, 2021
• Grant date: Feb 14, 2023
• Expiry date: Sep 30, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N1/286
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure provides a diffusive gradients in thin films (DGT) probe test device for a sediment core in a lake, including: a sampling tube, where, a settlement limit device is disposed on an outer wall of the sampling tube and a DGT probe and a multi-parameter water-quality detection electrode are installed within the sampling tube; a movable mudguard device comprising a connecting rod and a mudguard, where, the connecting rod rotates around a rotating shaft to drive the mudguard to move from a position where an opening at the lower end of the sampling tube is sealed to a side of the sampling tube; a position-limit mechanism removably installed outside the sampling tube; a hammering device located above the sampling tube and fixedly connected to the sampling tube; and a floating ball located above the hammering device and connected to the hammering device via a first pull rope.