| 摘要 |
<p>Methods for aligning a movable arm having a tool at its free end are disclosed. The methods use an alignment element having a surface lying in a plane formed by an x and a y-axis. According to one embodiment, the method comprises placing the tool on or at a distance in the z-direction from the surface; moving the tool in the x-direction while sensing the surface of the element until an edge of the element is sensed; moving the tool in the y-direction while sensing the surface of the element until an edge of the element is sensed and determining centers in the x and y directions based on the distance the tool has moved and the dimensions of the element. The tool may be a metering probe having a disposable tip on the end thereof and the measured response may be air pressure in the probe.</p> |
