公开(公告)号：US06988417B2

公开(公告)日：2006-01-24

申请号：US10670441

申请日：2003-09-25

Applicant: R. Lal Kushwaha ,  Louis Roth ,  James Schnaider ,  Tyrel Lloyd ,  William C. Roberts ,  Wayne Morley ,  Denise Stilling

Inventor： R. Lal Kushwaha ,  Louis Roth ,  James Schnaider ,  Tyrel Lloyd ,  William C. Roberts ,  Wayne Morley ,  Denise Stilling

IPC: G01N3/02

CPC classification number: G01L1/005 ,  G01N33/24

Abstract: An apparatus for measuring the displacement of visco-elastoplastic media below a surface thereof comprises an upper plate mounted such that a displacement force exerted on the top surface thereof will move the upper plate a displacement distance downward toward a base. Guides maintain the upper plate and the base in alignment such that movement is along a displacement axis. A calibrated bias element exerts a calibrated bias force resisting movement of the upper plate toward the base. A displacement measuring device measures the displacement distance, and is operative to generate a movement signal corresponding to the displacement distance. A data acquisition system is operative to receive and record the movement signal, and calculate the displacement force exerted on the top surface of the upper plate required to move the upper plate the displacement distance against the calibrated bias force.

Abstract translation: 用于测量其表面下方的粘弹塑性介质的位移的装置包括上板，其安装成使得施加在其顶表面上的位移力将使上板朝向底座向下移动位移距离。 导轨将上板和底座保持对准，使得运动沿位移轴线。 校准的偏置元件施加校准的偏压力以抵抗上板朝向底座的运动。 位移测量装置测量位移距离，并且可操作地产生对应于位移距离的运动信号。 数据采集​​系统可操作以接收和记录运动信号，并且计算施加在上板的顶表面上的移动力，该位移力使上板移动距离校准偏压力的位移距离。