公开(公告)号：US6076395A

公开(公告)日：2000-06-20

申请号：US18968

申请日：1998-02-05

申请人： Patrick B. Black ,  Timothy Andrew Hansen ,  Robert H. Anderson

发明人： Patrick B. Black ,  Timothy Andrew Hansen ,  Robert H. Anderson

IPC分类号： G01N7/10 ,  G01N13/00 ,  G01N13/04

CPC分类号： G01N7/10 ,  G01N13/00 ,  G01N2013/003

摘要： A device for measuring the concentration changes of a vapor at various moisture contents ranging from saturation to dry and under different confining stress as it diffuses through a porous media which includes a porous central housing having a central space and a fluid conveying line extending into the central space of the central housing and an outer housing which encompasses for containment of the central housing and is positioned in an outward spaced relation from the central housing to form a medial space, between the external housing and the internal housing and having a second fluid conveying line extending into the medial space.

摘要翻译： 一种用于测量各种水分含量的蒸气的浓度变化的装置，其范围从饱和干度和在不同的约束应力下，当其扩散通过多孔介质时，其包括具有中心空间的多孔中心壳体和延伸到中心的流体输送管线 中心壳体的空间和外壳，其包围用于容纳中心壳体并且与中心壳体间隔开的位置定位成在内部壳体和内部壳体之间形成中间空间，并具有第二流体输送线 延伸到内侧空间。

公开(公告)号：US4601002A

公开(公告)日：1986-07-15

申请号：US456159

申请日：1983-01-06

申请人： Richard L. Rosenthal

发明人： Richard L. Rosenthal

IPC分类号： G06K15/22 ,  G09G1/08 ,  G06F15/40

CPC分类号： G06K15/22 ,  G09G1/08

摘要： A method for digitally constructing variable width cartographic lines, the invention provides an algorithm for generating symbolized lines using multiply-stroked centerline data. The algorithm allows generation of software which utilizes trigonometric functions and which can be implemented in applications using vector data with vector or raster plotters. The algorithm further accounts for basic cartographic principles, existing algorithm characteristics and hardware constraints imposed by specific output devices.

摘要翻译： 一种用于数字构造可变宽度制图线的方法，本发明提供了一种使用多重划线中心线数据生成符号线的算法。 该算法允许生成利用三角函数的软件，并且可以在使用矢量或光栅绘图仪的矢量数据的应用中实现。 该算法进一步说明了特定输出设备施加的基本制图原理，现有算法特性和硬件约束。

公开(公告)号：US5726349A

公开(公告)日：1998-03-10

申请号：US444352

申请日：1995-05-18

申请人： Billy G. Palmertree ,  Lewis Bonny Naron ,  James H. Robinson

发明人： Billy G. Palmertree ,  Lewis Bonny Naron ,  James H. Robinson

IPC分类号： E02D1/02 ,  G01N3/00 ,  G01N3/40 ,  G01N33/24

CPC分类号： G01N3/40 ,  E02D1/022 ,  G01N2203/0082 ,  G01N33/24

摘要： A compact, portable cone penetrometer for determining the shear resistance of soil measures the compressive force on the penetrometer in penetrating the ground by a load cell and the depth of penetration of the ground by an ultrasonic proximity sensor. The outputs of the load cell and the proximity sensor are stored in the memory of a data logger/processor, from which the field data may later be transferred to a digital computer for averaging and tabulating of the data.

摘要翻译： 用于确定土体抗剪强度的紧凑型便携式锥形透度计测量由测力传感器穿透地面的穿透仪上的压缩力和超声波接近传感器对地面的穿透深度。 负载传感器和接近传感器的输出被存储在数据记录器/处理器的存储器中，现场数据可以随后从该数据记录器/处理器传送到数字计算机以对数据进行平均和制表。

公开(公告)号：US5647927A

公开(公告)日：1997-07-15

申请号：US493024

申请日：1995-06-21

申请人： George L. Mason

发明人： George L. Mason

IPC分类号： B60C23/00 ,  B60C23/20

CPC分类号： B60C23/003 ,  B60C23/20

摘要： A digital computer computes the optimum air pressure in the tires of a vehicle which minimizes fuel consumption, tire wear, and road deterioration, and transmits to a pressurized air supply system an output signal for adjusting the tire pressure to this optimum tire pressure. The computer uses input from sensors including both vehicle speed and acceleration.

摘要翻译： 数字计算机计算车辆轮胎中的最佳空气压力，其最小化燃料消耗，轮胎磨损和道路恶化，并且向加压空气供应系统传输用于将轮胎压力调节到该最佳轮胎压力的输出信号。 计算机使用来自传感器的输入，包括车速和加速度。

公开(公告)号：US4571985A

公开(公告)日：1986-02-25

申请号：US552883

申请日：1983-11-17

申请人： Charles J. Daly

发明人： Charles J. Daly

IPC分类号： G01N15/08

CPC分类号： G01N15/08

摘要： A method and apparatus for directly measuring the hydraulic conductivity of porous materials at various degrees of saturation, the invention involves determination of the rate of rotation under dynamic equilibrium of concentric cylinders having a partially saturated porous material disposed in an annular space between the concentric cylinders, the rate of rotation being directly related to the hydraulic conductivity of the material. The hydraulic conductivity of the material can thus be determined without the need for measuring fluid discharge and piezometric head gradient as is necessary in prior art determination of hydraulic conductivity.

摘要翻译： 一种在不同饱和度下直接测量多孔材料的水力传导率的方法和装置，本发明涉及确定在同心圆柱体之间的环形空间内具有部分饱和的多孔材料的同心圆筒的动态平衡下的旋转速率， 旋转速率与材料的水力传导率直接相关。 因此，可以确定材料的水力传导性，而不需要在现有技术的水力传导性测定中需要测量流体排放和压头测量头梯度。