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Travel Stages

Photonics Spectra
Sep 2010
Applied Scientific Instrumentation Inc.Request Info
 
Applied Scientific Instrumentation (ASI) offers an assortment of stages with flat tops and an extended range of travel for robotic loading. The MS-2500 stage provides 100 mm of Y-axis travel and 250 mm of X-axis travel, and it works well on existing inverted microscopes. Custom OEM configurations are available, including front-loading stages with more than 300 mm of Y-axis travel. All axes derive their precise control through the use of closed-loop DC servomotors employing high-resolution encoders for positioning feedback. The X-Y stage uses crossed-roller slides, precision leadscrews and zero-backlash miniature geared DC servomotors for smooth and accurate motion. The stages come standard with rotary encoders with a resolution of 100 nm and bidirectional repeatability of better than 800 nm rms. Resolutions down to 20 nm and repeatability accuracies of <300 nm rms can be obtained with optional linear encoders.


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GLOSSARY
axis
A straight line, real or imaginary, passing through a body and indicating its center; a line so positioned that various portions of an object are located symmetrically in relation to the line. See also optical axis.
backlash
In a mechanical system, any lost motion between driving and driven elements due to clearance between parts.
microscope
An instrument consisting essentially of a tube 160 mm long, with an objective lens at the distant end and an eyepiece at the near end. The objective forms a real aerial image of the object in the focal plane of the eyepiece where it is observed by the eye. The overall magnifying power is equal to the linear magnification of the objective multiplied by the magnifying power of the eyepiece. The eyepiece can be replaced by a film to photograph the primary image, or a positive or negative relay...
resolution
1. In optics, the ability of a lens system to reproduce the points, lines and surfaces in an object as separate entities in the image. 2. The minimum adjustment increment effectively achievable by a positioning mechanism. 3. In image processing, the accuracy with which brightness, spatial parameters and frame rate are divided into discrete levels.
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