{"id":3494,"date":"2018-01-15T10:44:08","date_gmt":"2018-01-15T09:44:08","guid":{"rendered":"http:\/\/wp.andreas.bieri.name\/myblog\/?p=3494"},"modified":"2018-01-04T16:52:38","modified_gmt":"2018-01-04T15:52:38","slug":"rauschquelle-linearisiert","status":"publish","type":"post","link":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/","title":{"rendered":"Rauschquelle verbessert"},"content":{"rendered":"<h4><strong>Linearisierung<\/strong><\/h4>\n<p>In einem <a href=\"http:\/\/wp.andreas.bieri.name\/myblog\/2017\/04\/09\/eine-rauschquelle-fuer-messzwecke\/\" target=\"_blank\" rel=\"noopener\">fr\u00fcheren Beitrag<\/a> habe ich beschrieben, wie sich eine Rauschquelle f\u00fcr Messungen an elektronischen Schaltungen einsetzen l\u00e4sst (z.B. f\u00fcr wie die Aufnahme von von Durchlasskurven von Filtern).\u00a0 Die eingesetzte Rauschquelle hat aber bei niedrigen Frequenzen bis 100MHz eine stark abfallende Rauschleistung, fast 20dB Abfall. F\u00fcr diesen Bereich habe ich mir nun nach [1] ein Linearisier-Glied gebaut.<\/p>\n<h5>Aufbau<\/h5>\n<p>Ich habe das RC-Glied mit einem gefr\u00e4sten St\u00fcck Platine aufgebaut. Die Gr\u00f6sse ist ca. 10x25mm. Gefr\u00e4st habe ich sie mit meiner<a href=\"http:\/\/www.thecooltool.com\/produkte\/unimat-metalline\/unimat-ml-6in1\/\" target=\"_blank\" rel=\"noopener\"> Unimat ML<\/a> Oberfr\u00e4se. Nur ein Fr\u00e4ser brach &#8211; ich muss besser geignete Fr\u00e4ser suchen, meine Flohmarkt-Schn\u00e4ppchen sind zu fein und sollten mit h\u00f6heren Drehzahlen resp. weniger Vorschub benutzt werden. Best\u00fcckt wurde mit einem SMD Widerstand 2.2k der Gr\u00f6sse 1206 und einem Keramikkondensator 33pf der Gr\u00f6sse 0805. Die Anschl\u00fcsse habe ich mit SMA Platinenrand-Buchsen realisiert.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3496\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg\" alt=\"\" width=\"600\" height=\"453\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1-300x227.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1-230x174.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1-350x264.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1-480x362.jpg 480w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3497\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin2.jpg\" alt=\"\" width=\"600\" height=\"475\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin2.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin2-300x238.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin2-230x182.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin2-350x277.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin2-480x380.jpg 480w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3498\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin3.jpg\" alt=\"\" width=\"600\" height=\"427\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin3.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin3-300x214.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin3-230x164.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin3-350x249.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin3-480x342.jpg 480w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h5>Messung<\/h5>\n<p>Hier die Rauschquelle mit dem RC-Glied<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3499\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4.jpg\" alt=\"\" width=\"800\" height=\"276\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4.jpg 800w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4-300x104.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4-768x265.jpg 768w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4-230x79.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4-350x121.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin4-480x166.jpg 480w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3506\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin10.jpg\" alt=\"\" width=\"600\" height=\"295\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin10.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin10-300x148.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin10-230x113.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin10-350x172.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin10-480x236.jpg 480w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Die folgenden Bildpaare zeigen die Rauschleistung mit (links) und ohne (rechts) RC Glied:<\/p>\n<p>Spektrum von 0-3GHz<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-3500 size-full\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin5.jpg\" alt=\"\" width=\"400\" height=\"304\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin5.jpg 400w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin5-300x228.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin5-230x175.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin5-350x266.jpg 350w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/> <img loading=\"lazy\" class=\"alignnone wp-image-3507\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin11.jpg\" alt=\"\" width=\"400\" height=\"311\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin11.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin11-300x233.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin11-230x179.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin11-350x272.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin11-480x373.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>Bis 30MHz<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-3501\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin6.jpg\" alt=\"\" width=\"400\" height=\"307\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin6.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin6-300x231.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin6-230x177.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin6-350x269.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin6-480x369.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/> <img loading=\"lazy\" class=\"alignnone wp-image-3508\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin12.jpg\" alt=\"\" width=\"400\" height=\"305\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin12.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin12-300x229.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin12-230x176.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin12-350x267.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin12-480x366.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>Bis 100Mh<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-3502\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7.jpg\" alt=\"\" width=\"400\" height=\"290\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7-300x218.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7-550x400.jpg 550w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7-230x167.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7-350x254.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin7-480x348.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/> <img loading=\"lazy\" class=\"alignnone wp-image-3509\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin13.jpg\" alt=\"\" width=\"400\" height=\"279\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin13.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin13-300x209.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin13-230x160.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin13-350x244.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin13-480x334.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>Bis 300MHz<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-3504\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin9.jpg\" alt=\"\" width=\"400\" height=\"285\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin9.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin9-300x214.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin9-230x164.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin9-350x249.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin9-480x342.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/> <img loading=\"lazy\" class=\"alignnone wp-image-3510\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin14.jpg\" alt=\"\" width=\"400\" height=\"288\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin14.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin14-300x216.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin14-230x166.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin14-350x252.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin14-480x346.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>Bis 500MHz<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-3503\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin8.jpg\" alt=\"\" width=\"400\" height=\"287\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin8.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin8-300x215.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin8-230x165.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin8-350x251.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin8-480x344.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/> <img loading=\"lazy\" class=\"alignnone wp-image-3511\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15.jpg\" alt=\"\" width=\"400\" height=\"291\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15-300x218.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15-550x400.jpg 550w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15-230x167.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15-350x254.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin15-480x349.jpg 480w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p><strong>Fazit: <\/strong>Der Aufbau ist gelungen, das RC erf\u00fcllt seinen Zweck offensichtlich gut. Die Nichtlinearit\u00e4t zwischen 3MHz und 500MHz liegt bei ca. 5dB, zwischen 3MHz und 30MHz unter 1dB.<\/p>\n<p>&nbsp;<\/p>\n<h4><strong>K\u00fchlung<\/strong><\/h4>\n<p>Aus einer defekten Server Power Supply Unit konnte ich einen passenden K\u00fchlk\u00f6rper ausbauen. Ich musste nur den Flansch abs\u00e4gen und ein Loch bohren. Der W\u00e4rmetrtansport schein OK zu sein, der ganze K\u00fchlk\u00f6rper wird gleichm\u00e4ssig (sehr) warm. F\u00fcr einen Dauereinsatz m\u00fcsste man wohl noch einen L\u00fcfter aufsetzen. Aber das ist schon viel besser als vorher ohne K\u00fchlung.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3523\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noisecool1.jpg\" alt=\"\" width=\"600\" height=\"367\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool1.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool1-300x184.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool1-230x141.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool1-350x214.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool1-480x294.jpg 480w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-3524\" src=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noisecool2.jpg\" alt=\"\" width=\"600\" height=\"401\" srcset=\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool2.jpg 600w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool2-300x201.jpg 300w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool2-230x154.jpg 230w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool2-350x234.jpg 350w, http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noisecool2-480x321.jpg 480w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Links<br \/>\n<\/strong>[1] Funkamateur FA 2017\/12 Seite1126, http:\/\/www.funkamateur.de<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linearisierung In einem fr\u00fcheren Beitrag habe ich beschrieben, wie sich eine Rauschquelle f\u00fcr Messungen an elektronischen Schaltungen einsetzen l\u00e4sst (z.B. f\u00fcr wie die Aufnahme von von Durchlasskurven von Filtern).\u00a0 Die eingesetzte Rauschquelle hat aber bei niedrigen Frequenzen bis 100MHz eine stark abfallende Rauschleistung, fast 20dB Abfall. F\u00fcr diesen Bereich habe ich mir nun nach [1] [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8,11],"tags":[48,158],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Rauschquelle verbessert - Merkbar.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rauschquelle verbessert - Merkbar.\" \/>\n<meta property=\"og:description\" content=\"Linearisierung In einem fr\u00fcheren Beitrag habe ich beschrieben, wie sich eine Rauschquelle f\u00fcr Messungen an elektronischen Schaltungen einsetzen l\u00e4sst (z.B. f\u00fcr wie die Aufnahme von von Durchlasskurven von Filtern).\u00a0 Die eingesetzte Rauschquelle hat aber bei niedrigen Frequenzen bis 100MHz eine stark abfallende Rauschleistung, fast 20dB Abfall. F\u00fcr diesen Bereich habe ich mir nun nach [1] [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/\" \/>\n<meta property=\"og:site_name\" content=\"Merkbar.\" \/>\n<meta property=\"article:published_time\" content=\"2018-01-15T09:44:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-01-04T15:52:38+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"wp_blogadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#website\",\"url\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/\",\"name\":\"Merkbar.\",\"description\":\"IT, Elektronik und Mathematik\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de\"},{\"@type\":\"ImageObject\",\"@id\":\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#primaryimage\",\"inLanguage\":\"de\",\"url\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg\",\"contentUrl\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg\",\"width\":600,\"height\":453},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#webpage\",\"url\":\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/\",\"name\":\"Rauschquelle verbessert - Merkbar.\",\"isPartOf\":{\"@id\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#primaryimage\"},\"datePublished\":\"2018-01-15T09:44:08+00:00\",\"dateModified\":\"2018-01-04T15:52:38+00:00\",\"author\":{\"@id\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#\/schema\/person\/47691942dec3f2eb9d34bb8b5507870d\"},\"breadcrumb\":{\"@id\":\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Rauschquelle verbessert\"}]},{\"@type\":\"Person\",\"@id\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#\/schema\/person\/47691942dec3f2eb9d34bb8b5507870d\",\"name\":\"wp_blogadmin\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#personlogo\",\"inLanguage\":\"de\",\"url\":\"http:\/\/1.gravatar.com\/avatar\/d0dc804558b03f640b22e497ec010c9a?s=96&d=mm&r=g\",\"contentUrl\":\"http:\/\/1.gravatar.com\/avatar\/d0dc804558b03f640b22e497ec010c9a?s=96&d=mm&r=g\",\"caption\":\"wp_blogadmin\"},\"url\":\"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/author\/wp_blogadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Rauschquelle verbessert - Merkbar.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/","og_locale":"de_DE","og_type":"article","og_title":"Rauschquelle verbessert - Merkbar.","og_description":"Linearisierung In einem fr\u00fcheren Beitrag habe ich beschrieben, wie sich eine Rauschquelle f\u00fcr Messungen an elektronischen Schaltungen einsetzen l\u00e4sst (z.B. f\u00fcr wie die Aufnahme von von Durchlasskurven von Filtern).\u00a0 Die eingesetzte Rauschquelle hat aber bei niedrigen Frequenzen bis 100MHz eine stark abfallende Rauschleistung, fast 20dB Abfall. F\u00fcr diesen Bereich habe ich mir nun nach [1] [&hellip;]","og_url":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/","og_site_name":"Merkbar.","article_published_time":"2018-01-15T09:44:08+00:00","article_modified_time":"2018-01-04T15:52:38+00:00","og_image":[{"url":"http:\/\/wp.andreas.bieri.name\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg"}],"twitter_card":"summary","twitter_misc":{"Verfasst von":"wp_blogadmin","Gesch\u00e4tzte Lesezeit":"1 Minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#website","url":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/","name":"Merkbar.","description":"IT, Elektronik und Mathematik","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"de"},{"@type":"ImageObject","@id":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#primaryimage","inLanguage":"de","url":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg","contentUrl":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-content\/uploads\/2018\/01\/noiselin1.jpg","width":600,"height":453},{"@type":"WebPage","@id":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#webpage","url":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/","name":"Rauschquelle verbessert - Merkbar.","isPartOf":{"@id":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#website"},"primaryImageOfPage":{"@id":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#primaryimage"},"datePublished":"2018-01-15T09:44:08+00:00","dateModified":"2018-01-04T15:52:38+00:00","author":{"@id":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#\/schema\/person\/47691942dec3f2eb9d34bb8b5507870d"},"breadcrumb":{"@id":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/"]}]},{"@type":"BreadcrumbList","@id":"http:\/\/wp.andreas.bieri.name\/myblog\/2018\/01\/15\/rauschquelle-linearisiert\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/"},{"@type":"ListItem","position":2,"name":"Rauschquelle verbessert"}]},{"@type":"Person","@id":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#\/schema\/person\/47691942dec3f2eb9d34bb8b5507870d","name":"wp_blogadmin","image":{"@type":"ImageObject","@id":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/#personlogo","inLanguage":"de","url":"http:\/\/1.gravatar.com\/avatar\/d0dc804558b03f640b22e497ec010c9a?s=96&d=mm&r=g","contentUrl":"http:\/\/1.gravatar.com\/avatar\/d0dc804558b03f640b22e497ec010c9a?s=96&d=mm&r=g","caption":"wp_blogadmin"},"url":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/author\/wp_blogadmin\/"}]}},"_links":{"self":[{"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/posts\/3494"}],"collection":[{"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/comments?post=3494"}],"version-history":[{"count":8,"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/posts\/3494\/revisions"}],"predecessor-version":[{"id":3514,"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/posts\/3494\/revisions\/3514"}],"wp:attachment":[{"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/media?parent=3494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/categories?post=3494"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ec2-52-29-166-97.eu-central-1.compute.amazonaws.com\/myblog\/wp-json\/wp\/v2\/tags?post=3494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}