Gurevich L, Bennett W H, Anderson M A, Mann F A, Jiang B, Hahn A W
Department of Veterinary Medicine and Surgery, University of Missouri, Columbia 65211.
Biomed Sci Instrum. 1994;30:81-6.
We have developed and implemented a low cost system for measuring ground reaction forces in dogs with normal and abnormal ambulation as they walk or trot over a floor mounted plate that measures vertical and horizontal forces. Orthogonally mounted strain gages measure the forces imposed. A bridge amplifier conditions the signals which are sampled and converted to digital form for display on an operator initiated graphical user interface (GUI) which displays the forces as a function of time on the screen of a Macintosh computer. The system also allows the input of timing of the velocity of approach to the plate and the foot strike can be monitored (via tap reply) on the computer screen to verify the fidelity of the foot strike on the active surface of the plate. The data gathered on a particular strike is stored as a "raw" signal, analyzed and recorded in a spread sheet text format for later analysis.
我们已经开发并实施了一种低成本系统，用于测量正常和异常行走的犬在走过安装在地板上的平板时的地面反作用力，该平板可测量垂直和水平力。正交安装的应变片测量施加的力。桥式放大器对信号进行调节，这些信号被采样并转换为数字形式，以便在操作员启动的图形用户界面（GUI）上显示，该界面在苹果电脑屏幕上显示力随时间的变化。该系统还允许输入接近平板的速度的时间，并且可以在电脑屏幕上监测（通过敲击回复）脚着地情况，以验证在平板有效表面上脚着地的准确性。在特定撞击时收集的数据作为“原始”信号存储，以电子表格文本格式进行分析和记录，以供后续分析。
