{"id":3566,"date":"2024-01-18T00:29:17","date_gmt":"2024-01-18T08:29:17","guid":{"rendered":"https:\/\/digitalnigel.com\/wordpress\/?p=3566"},"modified":"2024-01-18T00:29:17","modified_gmt":"2024-01-18T08:29:17","slug":"laser-tape-measure","status":"publish","type":"post","link":"https:\/\/digitalnigel.com\/wordpress\/?p=3566","title":{"rendered":"Laser Tape Measure"},"content":{"rendered":"\n<p>I got one of the little Bosch laser tape measure devices as a gift for the holidays. It&#8217;s an impressive little device, and is remarkably accurate. I&#8217;m curious how it makes the measurement, because the timing requirements to directly measure time of flight for a laser beam over the course of a couple feet are quite tight.<\/p>\n\n\n\n<p>I used the same photodiode setup I put together for measuring the accuracy of a mechanical clock, and took a look at the signals.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-id=\"3568\" src=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-1024x768.jpg\" alt=\"\" class=\"wp-image-3568\" srcset=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-1024x768.jpg 1024w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-300x225.jpg 300w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-150x113.jpg 150w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-768x576.jpg 768w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-1536x1152.jpg 1536w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/IMG_0990-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/SDS00001.png\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"480\" data-id=\"3567\" src=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/SDS00001.png\" alt=\"\" class=\"wp-image-3567\" srcset=\"https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/SDS00001.png 800w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/SDS00001-300x180.png 300w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/SDS00001-150x90.png 150w, https:\/\/digitalnigel.com\/wordpress\/wp-content\/uploads\/2024\/01\/SDS00001-768x461.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>It does seem like they&#8217;re doing some modulation on the laser beam, but I haven&#8217;t dug further to come to any conclusions yet on how they&#8217;re actually deriving a distance. Pretty neat tool though.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I got one of the little Bosch laser tape measure devices as a gift for the holidays. It&#8217;s an impressive little device, and is remarkably accurate. I&#8217;m curious how it makes the measurement, because the timing requirements to directly measure &hellip; <a href=\"https:\/\/digitalnigel.com\/wordpress\/?p=3566\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,6],"tags":[],"class_list":["post-3566","post","type-post","status-publish","format-standard","hentry","category-electronics","category-technology"],"_links":{"self":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3566"}],"version-history":[{"count":1,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3566\/revisions"}],"predecessor-version":[{"id":3569,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3566\/revisions\/3569"}],"wp:attachment":[{"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/digitalnigel.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}