{"id":7900,"date":"2018-06-13T07:00:00","date_gmt":"2018-06-13T06:00:00","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=7900"},"modified":"2018-06-11T10:12:31","modified_gmt":"2018-06-11T09:12:31","slug":"current-sensors-for-measurement-with-a-low-noise-level","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/current-sensors-for-measurement-with-a-low-noise-level\/","title":{"rendered":"Current sensors for measurement with a low noise level"},"content":{"rendered":"<p>LEM expands its range of high accuracy transducers announcing the new <span class=\"highlight highlight-blue\"><a href=\"http:\/\/www.lem.com\" target=\"_blank\" rel=\"noopener\">IN 1000-S for non-intrusive and isolated measurement of DC, AC and pulsed nominal current of 1000A<\/a><\/span>.<\/p>\n<span class=\"highlight highlight-blue\"><a href=\"https:\/\/engineernewsnetwork.com\/blog\/lem-launches-new-website-to-enable-users-to-search-product-information-more-efficiently\/\">LEM<\/a><\/span> already launched a 2000A model last year as first model of this range reinventing the fluxgate technology.<\/p>\n<p>+10 to +40 or +50\u00b0C temperature range is usually offered by the traditional high accuracy 1000 A transducer, the IN 1000-S model provides an extended operating temperature range of -40 to +85\u00b0C, allowing it to be used in a wider range of applications in addition to labs.<br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-7565662001938327\" data-ad-slot=\"7585079586\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><br \/>\nThese applications include: test equipment for traditional industrial applications, medical equipment (eg, MRI, proton therapy, etc), precision motor controllers and metering.<\/p>\n<p>A maximum signal processing has been treated in the digital domain, and a new approach to the fluxgate technology architecture has been applied for the ripple cancellation of the fluxgate drive frequency.<\/p>\n<p>The result is a compact transducer, maintaining its high accuracy over a wider temperature range, with reduced noise level vs the previous generation.<\/p>\n<p><strong>Immunity to temperature effects, interference and supply voltage variation<\/strong><\/p>\n<p>Processing the signal in the digital domain brings complete immunity to temperature effects, interference and supply voltage variation after the ADC. This contributes to offset and offset drift improvement.<\/p>\n<p>The reduction of the interference or ripple from the fluxgate driving signal at a fixed frequency is as a result of the use of the DSP (Digital Signal Processor). Higher frequency harmonics have been reduced.<\/p>\n<p>The remaining interference has been eliminated by driving a \u2018ripple compensation coil\u2019 whose amplitude and phase are adjusted during the calibration of each transducer.<\/p>\n<p>After calibration, the remaining peak-to-peak ripple is less than 34ppm, relative to the full-scale transducer output, over the full -40\u02daC to 85\u02daC operating temperature range.<\/p>\n<p>These innovations contribute IN 1000-S model to provide the high performance across the extended temperature range, delivering extremely high accuracy with linearity and low offset over temperature range better than 3 ppm and 19.5 ppm respectively.<\/p>\n<p>The IN 1000-S has been designed to operate from a bipolar \u00b115 VDC power supply and will accommodate round primary conductors of up to 38.2mm diameter.<\/p>\n<p>In addition to its normal current output, the transducer offers an additional output indicating the transducer state (low or high output levels) and an external LED showing normal operation.<\/p>\n<p>An equivalent product would usually be made up of two parts, the measuring head and the treatment electronic, while this new model proposes a compact design integrating all in one, allowing a variety of panel mounting topologies (flat or vertical).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LEM expands its range of high accuracy transducers announcing the new IN 1000-S for non-intrusive and isolated measurement of DC, AC and pulsed nominal current of 1000A. LEM already launched a 2000A model last year as first model of this range reinventing the fluxgate technology. +10 to +40 or +50\u00b0C temperature range is usually offered &hellip;<\/p>\n","protected":false},"author":1,"featured_media":7901,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[4481,4480,4138,1149,2814,4483,4482],"class_list":["post-7900","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-current-sensors","tag-fluxgate-technology","tag-lem","tag-medical-equipment","tag-metering","tag-precision-motor-controllers","tag-test-equipment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Current sensors for measurement with a low noise level - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Closed-loop Fluxgate transducer measures DC, AC or pulsed current for 1000A; 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