{"id":4244,"date":"2020-10-19T18:26:57","date_gmt":"2020-10-19T18:26:57","guid":{"rendered":"https:\/\/aerotechinc.wpengine.com\/?p=4244"},"modified":"2024-06-28T14:34:35","modified_gmt":"2024-06-28T18:34:35","slug":"minimum-incremental-motion-and-holding-stability-in-beamline-positioning","status":"publish","type":"post","link":"https:\/\/www.aerotech.com\/minimum-incremental-motion-and-holding-stability-in-beamline-positioning\/","title":{"rendered":"Minimum Incremental Motion and Holding Stability in Beamline Positioning"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Background<\/h2><p>Many beamline applications such as X-ray microscopy and Computed Tomography (CT) require positioning of samples, detectors, and optics in order to perform measurements. Microscopy applications often require imaging of the structure of matter at the sub-micrometer and even nanometer level. Good holding stability, both short-term and long-term, is required because movement of the sample or optics over the time of measurement will cause poor images. Also, the ability to make small mechanical movements on the order of nanometers is often critical for alignment and adjustment of samples or optics.<\/p><p>Stepper and servomotors are two common drive methods for controlling position in mechanical positioning systems used in beamline applications. Stepper motors are brushless DC devices that divide 360 degrees of rotation into equal steps. Motion is induced by energizing segments of the coil winding sequentially. A stepper motor can hold position by energizing one segment of the coil, without any feedback, making it a good choice for low-cost, precision applications requiring holding stability. Servomotors are typically brushless AC devices, but in contrast to stepper motors, most often use three phases of coil winding plus a feedback device like an encoder or resolver. This feedback device allows a controller to commutate the motor phases and close a PID servo loop around the actual position of the motor, providing a significant advantage in applications that require small step sizes and good holding stability.<\/p><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n    <div class=\"wp-block-button aligncenter\">\n        <span class=\"hs-cta-trigger-button hs-cta-trigger-button-170292590976 wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" target=\"_blank\" rel=\"noreferrer noopener\">Download White Paper<\/span>\n    <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Background Many beamline applications such as X-ray microscopy and Computed&hellip;<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","_searchwp_excluded":"","footnotes":""},"categories":[954,948,949,950,945,951,942,944,958],"tags":[],"content_type":[972],"industry":[980],"topic":[993,983,984,985,987,991],"class_list":["post-4244","post","type-post","status-publish","format-standard","hentry","category-custom-engineered-motion-systems","category-gantries","category-gimbals-optical-mounts","category-hexapods","category-motion-control-platforms","category-piezoelectric-nanopositioners","category-science-research","category-stages-actuators","category-white-paper","content_type-white-paper","industry-science-research-institutions","topic-custom-engineered-motion","topic-gantries","topic-gimbals-optical-mounts","topic-hexapods","topic-motion-control-platforms","topic-stages-actuators"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Incremental Motion in Beamline Positioning | Aerotech<\/title>\n<meta name=\"description\" content=\"To learn more about minimum incremental motion and holding stability in beamline positioning, click here to read our whitepaper!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.aerotech.com\/minimum-incremental-motion-and-holding-stability-in-beamline-positioning\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Incremental Motion in Beamline Positioning | Aerotech\" \/>\n<meta property=\"og:description\" content=\"To learn more about minimum incremental motion and holding stability in beamline positioning, click here to read our whitepaper!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.aerotech.com\/minimum-incremental-motion-and-holding-stability-in-beamline-positioning\/\" \/>\n<meta property=\"og:site_name\" content=\"Aerotech US\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-19T18:26:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-06-28T18:34:35+00:00\" \/>\n<meta name=\"author\" content=\"dwebster\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"dwebster\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"19 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.aerotech.com\/minimum-incremental-motion-and-holding-stability-in-beamline-positioning\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.aerotech.com\/minimum-incremental-motion-and-holding-stability-in-beamline-positioning\/\"},\"author\":{\"name\":\"dwebster\",\"@id\":\"https:\/\/www.aerotech.com\/#\/schema\/person\/1c49828c1ca04a5ebdd6101b094ed6b2\"},\"headline\":\"Minimum Incremental Motion and Holding Stability in Beamline Positioning\",\"datePublished\":\"2020-10-19T18:26:57+00:00\",\"dateModified\":\"2024-06-28T18:34:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.aerotech.com\/minimum-incremental-motion-and-holding-stability-in-beamline-positioning\/\"},\"wordCount\":242,\"publisher\":{\"@id\":\"https:\/\/www.aerotech.com\/#organization\"},\"articleSection\":[\"Custom Engineered Motion Systems\",\"Gantries\",\"Gimbals &amp; 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