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Re-Design Of The Bevameter

机译：重新设计气压计

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There are several tools available for measuring soil properties including the conernpenetrometer and the bevameter. Legend relates the cone penetrometer to the British Officersrnwalking stick used in WW I. The Bevameter (Derived from Bekker Value Meter) was inventedrnas a result of Bekker's work in the areas of land locomotion and has its origins in classical civilrnengineering bearing capacity and soil shear tests. Original Bevameters were portable andrnoperated by hand. A “steam gauge” was used to measure penetration force and sinkage withrndead weight and a torque wrench used to measure shear stress. Later models utilized electricallyrncontrolled hydraulics to perform the compaction and shear operations but much of the operationrnwas still done manually. Data was recorded with a X-Y or a strip chart recorder and reduced byrnhand. With the technology available today, the bevameter can be totally automated using stateof-rnthe-art instrumentation and portable computers for control and data storage/reduction.rnThe Keweenaw Research Center and the U.S. Army Tank-Automotive command have workedrntogether to design, develop and build a completely automated bevameter in support of TACOM'srnwork in the unmanned ground vehicle (UGV) research and development effort. Using computerrncontrol systems to operate the electro-hydraulic units, the automated bevameter automaticallyrncollects data. The computer program uses commercial software to calculate the Bekker values.rnThe unit is designed for measuring soil properties for the lightweight UGV's and therefore isrndesigned to be mounted and used off of a truck or trailer. This paper discusses the design aspectsrnand benefits of the automated bevameter.
机译：有几种可用于测量土壤性质的工具，包括电渗仪和比重计。传说锥度仪与第一次世界大战中使用的英国官员手杖有关。贝瓦表（源自贝克尔价值仪）是贝克尔在土地运动领域的工作的发明，起源于经典的土木工程承载力和土壤剪切试验。原始的气压表是便携式的，并且需要手工操作。使用“蒸汽计”来测量穿透力和沉下重量，并使用扭矩扳手来测量剪切应力。后来的模型使用电控液压来执行压实和剪切操作，但大部分操作仍是手动完成的。用X-Y或带状图记录仪记录数据，并通过手工减少。借助当今可用的技术，可以使用最先进的仪器和便携式计算机对控制仪进行完全自动化，以进行控制和数据存储/还原。基韦诺研究中心和美国陆军坦克汽车司令部共同致力于设计，开发和建造一款支持TACOM在无人地面车辆（UGV）研发工作中工作的全自动Bevameter。通过使用计算机控制系统来操作电动液压单元，自动测斜仪会自动收集数据。该计算机程序使用商业软件来计算Bekker值。该设备用于测量轻型UGV的土壤特性，因此被设计为可在卡车或拖车上安装和使用。本文讨论了自动测光仪的设计方面和优点。

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