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取样器测湿修正新方法

作者: 麦继平 赵可萍 来源:天津纺织工学院学报 日期: 2024-01-10 人气:5
取样器测湿修正新方法
空调系统通过取样器测湿时,对结果必须修正,原有修正方法只适用于干湿球湿度计,使用不便,本文提出了一种新修正方法,适用于各种类型湿度传感器。

A Hydraulic Hammer Corer Utilizing Hydrostatic Energy for Hard Seafloor Sediment Coring

作者: 王建军 秦华伟 陈鹰 魏双丰 来源:China Ocean Engineering 日期: 2022-04-02 人气:195
The paper presents the design and preliminary test results of a corer used for hard seafloor sediments sampling.Generally the sediment cores are provided by either gravity-type coring or deep-ocean drilling for a range of studies.However,in consideration of the operability and available sample length in collecting hard sediments,these methods exhibit no advantages.In this paper,a new corer which can exploit both hydrostatic energy and gravity energy for hard sediments coring is presented.The hydrostatic energy is provided by pressure differential between ambient seawater pressure and air pressure in an empty cavity.During sampling process,the corer penetrates into the sediment like a gravity corer and then automatically shifts to the percussion mode.The experiments in the laboratory indicate that the corer can complete 40 cycles in the sea with a cycle time of 2.8 seconds in percussion mode and impact the sample tube with the velocity of 0.2 m/s during each cycle.Besides,its adjustabl

深海生物幼体液压驱动取样器设计

作者: 王钰岩 陈家旺 谢英俊 来源:液压与气动 日期: 2019-12-01 人气:59
针对传统深海生物幼体取样器无法保压、无法多层尤其是近底层取样的难题,该文设计了一套液压驱动的取样器,介绍了取样器的结构和工作原理。对取样器样机进行了实验室试验和深海试验研究,结果表明,取样器具有良好的取样和保压能力。

液压技术在一种深海勘探设备中的应用

作者: 程毅 李世伦 秦华伟 顾临怡 叶瑛 邱敏秀 来源:液压与气动 日期: 2019-08-23 人气:136
简要说明了一种新型深海沉积物取样器的结构、工作原理,着重介绍其关键的保压技术.通过样机试验,表明它的保压效果良好.
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