{"id":5717,"date":"2024-12-10T10:51:26","date_gmt":"2024-12-10T09:51:26","guid":{"rendered":"https:\/\/eidel.no\/en\/?post_type=product&#038;p=5717"},"modified":"2024-12-17T15:44:08","modified_gmt":"2024-12-17T14:44:08","slug":"floating-potential-probe","status":"publish","type":"product","link":"https:\/\/eidel.no\/en\/product\/floating-potential-probe\/","title":{"rendered":"Floating Potential Probe"},"content":{"rendered":"\n<p>Spacecrafts may experience harmful effects due charging when exposed to a space environment.<br>Spacecraft charging can manifest as damage to onboard electronic instruments or interference with<br>scientific measurements. A floating potential probe can monitor the spacecraft potential and 1) provide a<br>real-time warning signal about high charging levels (~kV range), or 2) be used by a scientific instrument<br>to correct for platform charging effects at lower charging levels (a few V).<\/p>\n\n\n\n<p><strong>How is the problem solved today?<\/strong><\/p>\n\n\n\n<p>Today, spacecraft potentials are measured using variants of floating potential probes, like the e.g., the<br>Floating potential measurement unit (FPMU) mounted on the ISS (Barjatya et al., 2009), or using low-energy electron spectrometers. These are either  large instrument and not well suited for e.g., smaller satellites, while spectrometers have the disadvantage of not supporting high voltages. Also, for<br>spectrometers, the time constant is longer since it needs to step through the complete energy range of<br>the spectrometer to get the curves required to calculate the potential. Meaning it is also a derived<br>parameter and not a direct physical measurement.<\/p>\n\n\n\n<p>EIDEL Floating Potential Probe is an instrument initially developed by the University of Oslo and delivered in cooperation by EIDEL.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"319\" height=\"238\" src=\"https:\/\/eidel.no\/en\/wp-content\/uploads\/sites\/2\/2024\/12\/FPP-probe.png\" alt=\"\" class=\"wp-image-5722\" srcset=\"https:\/\/eidel.no\/en\/wp-content\/uploads\/sites\/2\/2024\/12\/FPP-probe.png 319w, https:\/\/eidel.no\/en\/wp-content\/uploads\/sites\/2\/2024\/12\/FPP-probe-300x224.png 300w\" sizes=\"auto, (max-width: 319px) 100vw, 319px\" \/><figcaption class=\"wp-element-caption\">FPP Prototype (image: University of Oslo)<\/figcaption><\/figure>\n\n\n\n<p>The <a href=\"https:\/\/eidel.no\/en\/product\/multi-needle-langmuir-probe\/\">m-NLP<\/a> is also capable of measuring the floating potential. However, this is also a derived<br>measurement and limited to low voltage. A dedicated floating potential probe is aimed at measurement range up to the kV-range, and provide an independent measurement at the lower range. Both being physical measurements and not derived.<\/p>\n\n\n\n<p><a href=\"https:\/\/eidel.no\/en\/contact\/\">Contact us<\/a> for more information on the Floating Potential Probe.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spacecrafts may experience harmful effects due charging when exposed to a space environment.Spacecraft charging can manifest as damage to onboard electronic instruments or interference withscientific measurements. A floating potential probe can monitor the spacecraft potential and 1) provide areal-time warning signal about high charging levels (~kV range), or 2) be used by a scientific instrumentto [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":5721,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5717","product","type-product","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Floating Potential Probe - Eidel - Engelsk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eidel.no\/en\/?post_type=product&p=5717\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Floating Potential Probe - Eidel - Engelsk\" \/>\n<meta property=\"og:description\" content=\"Spacecrafts may experience harmful effects due charging when exposed to a space environment.Spacecraft charging can manifest as damage to onboard electronic instruments or interference withscientific measurements. 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