{"id":3348,"date":"2021-10-01T08:49:59","date_gmt":"2021-10-01T08:49:59","guid":{"rendered":"https:\/\/www.nplindia.org\/?page_id=3348"},"modified":"2025-08-18T10:36:33","modified_gmt":"2025-08-18T10:36:33","slug":"electromagnetic-metrology-section","status":"publish","type":"page","link":"https:\/\/www.nplindia.in\/index.php\/science-technology\/indian-standard-time-metrology-division\/electromagnetic-metrology-section\/","title":{"rendered":"Electromagnetic Metrology"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3348\" class=\"elementor elementor-3348\">\n\t\t\t\t\t\t<section class=\"has_eae_slider has_ma_el_bg_slider elementor-section elementor-top-section elementor-element elementor-element-66dc3b0 elementor-section-full_width elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"53955\" data-id=\"66dc3b0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"has_eae_slider has_ma_el_bg_slider elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-20df8e9 jltma-glass-effect-no\" data-eae-slider=\"99974\" data-id=\"20df8e9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b177aa7 jltma-glass-effect-no elementor-widget elementor-widget-shortcode\" data-id=\"b177aa7\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13197\" class=\"elementor elementor-13197\">\n\t\t\t\t\t\t<section class=\"has_eae_slider has_ma_el_bg_slider elementor-section elementor-top-section elementor-element elementor-element-6eee7c7 elementor-section-full_width elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"59078\" data-id=\"6eee7c7\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"has_eae_slider has_ma_el_bg_slider elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-8b75a1a jltma-glass-effect-no\" data-eae-slider=\"98775\" data-id=\"8b75a1a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ac131a elementor-widget-tablet__width-auto elementor-widget-mobile__width-auto jltma-glass-effect-no elementor-widget elementor-widget-image\" data-id=\"3ac131a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2023\/01\/CSIR-removebg-preview-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-image-24151\" alt=\"\" srcset=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2023\/01\/CSIR-removebg-preview-150x150.png 150w, https:\/\/www.nplindia.in\/wp-content\/uploads\/2023\/01\/CSIR-removebg-preview-300x300.png 300w, https:\/\/www.nplindia.in\/wp-content\/uploads\/2023\/01\/CSIR-removebg-preview.png 500w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"has_eae_slider has_ma_el_bg_slider elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-9e41c9f jltma-glass-effect-no\" data-eae-slider=\"73573\" data-id=\"9e41c9f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-21388ae jltma-glass-effect-no elementor-widget elementor-widget-text-editor\" data-id=\"21388ae\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center; font-size: 43px; font-family: Arial Rounded MT Bold;\"><span style=\"color: #ffffff;\">\u0938\u0940\u090f\u0938\u0906\u0908\u0906\u0930-\u0930\u093e\u0937\u094d\u091f\u094d\u0930\u0940\u092f \u092d\u094c\u0924\u093f\u0915 \u092a\u094d\u0930\u092f\u094b\u0917\u0936\u093e\u0932\u093e<\/span><\/p><p style=\"text-align: center; font-size: 40px; font-family: Cooper Black;\"><span style=\"color: #ffffff;\"><span style=\"text-decoration: none;\">CSIR-National Physical Laborator<\/span>y<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"has_eae_slider has_ma_el_bg_slider elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-2044372 jltma-glass-effect-no\" data-eae-slider=\"2817\" data-id=\"2044372\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-eb96210 jltma-glass-effect-no elementor-widget elementor-widget-image\" data-id=\"eb96210\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/12\/npl-1-150x150.png\" class=\"attachment-thumbnail size-thumbnail wp-image-39141\" alt=\"\" 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elementor-element elementor-element-bf7fdb8 jltma-glass-effect-no\" data-eae-slider=\"42032\" data-id=\"bf7fdb8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5cc7b63 hfe-nav-menu__align-left hfe-submenu-icon-arrow hfe-submenu-animation-none hfe-link-redirect-child hfe-nav-menu__breakpoint-tablet jltma-glass-effect-no elementor-widget elementor-widget-navigation-menu\" data-id=\"5cc7b63\" data-element_type=\"widget\" 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data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"has_eae_slider has_ma_el_bg_slider elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f8955db jltma-glass-effect-no\" data-eae-slider=\"54436\" data-id=\"f8955db\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b022eeb jltma-glass-effect-no elementor-widget elementor-widget-heading\" data-id=\"b022eeb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Electromagnetic Metrology<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"has_eae_slider has_ma_el_bg_slider elementor-section elementor-top-section elementor-element elementor-element-60612fb elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"60578\" data-id=\"60612fb\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"has_eae_slider has_ma_el_bg_slider elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d6fbd10 jltma-glass-effect-no\" data-eae-slider=\"24459\" data-id=\"d6fbd10\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c06ed8d jltma-glass-effect-no elementor-widget elementor-widget-accordion\" data-id=\"c06ed8d\" data-element_type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2011\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-2011\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">About<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2011\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-2011\"><p align=\"justify\">Electromagnetic (EM) Metrology at CSIR-NPL comprises of various measurement facilities in frequency range from 1 Hz to 110 GHz of electromagnetic spectrum for devices from household electronic appliances to advanced strategic communication and instrumentation. CSIR-NPL (NMI of the country) provides measurements for microwave frequencies from 9 kHz to 110 GHz frequency range that are precise, accurate, reliable, internationally recognized and traceable to the SI units through Microwave Metrology and Magnetic Metrology. The Microwave and Magnetic based National Standards and measurement capabilities are realized, established, maintained, and upgraded at CSIR-NPL. These standards are disseminated to reference laboratories across India to provide traceability to various sectors: strategic, defence, manufacturers, testing industries, government regulators and research institutions. Electromagnetic metrology at CSIR-NPL has a unique combination of comprehensive capabilities of various parameters of Electromagnetics such as attenuation, microwave power, E-Field and specific absorption rate (SAR), Magnetic flux Density, Magnetic flux, turn area of search coil, power loss measurement of electrical steel, along with various free space measurements parameters. Upcoming 5G technology is not just a routine technological change but a platform to enable several smart technologies such as smart banking, smart city, smart village, smart healthcare smart automobile and many more. This shows the overall impact of Electromagnetic metrology on country\u2019s upcoming technological needs.<\/p><p align=\"justify\">Microwave metrology includes parameters such as attenuation, impedance, insertion loss followed by free space microwave measurements such as Electric Filed, SAR, Shielding effectiveness, and dielectric measurements along with advanced Quantum E-Field measurements traceable to Plank Constant. Each parameter have their associated primary standards, their calibration and measurement capabilities (CMCs) and their degree of equivalence with the leading NMIs of the world, and associated on-going research for advanced measurements including quantum standards.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2012\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-2012\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Microwave Metrology<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2012\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-2012\"><p style=\"text-align: justify;\"><span style=\"color: #556b2f;\">Microwave Metrology at CSIR-NPL exhibits an international degree of equivalence for various measurement parameters such as Microwave Power, Attenuation, Impedance, E-Field, Shielding Effectiveness, Radiated power density, Specific Absorption Rate in the frequency range from 9 kHz to 50 GHz with fifteen registered CMC&#8217;s and seven international inter-comparisons. Microwave Metrology also engages in Dielectric Material characterization (\u03b5 and \u03c3) for Lossy Liquids and biological materials by using commercial open ended Dielectric probe, along with VNA (ZNB 8), for frequencies up to 6 GHz as recommended in IEEE-1528 2013 standard. However, the IEEE-1528:2013 standard, is now superseded by the new IEEE\/IEC-62209 1528: 2020 standard, which has made few advancements to measurement methods and standards used.<br \/><\/span><\/p><div id=\"attachment_3734\" style=\"width: 611px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-3734\" src=\"https:\/\/www.getinfo.global\/wp-content\/uploads\/2021\/10\/1-1.png\" alt=\"\" width=\"601\" height=\"276\" class=\"size-full wp-image-3734\" srcset=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/10\/1-1.png 601w, https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/10\/1-1-300x138.png 300w\" sizes=\"(max-width: 601px) 100vw, 601px\" \/><p id=\"caption-attachment-3734\" class=\"wp-caption-text\">Design for Fabricated Sample Cell for Liquid Dielectric Materials<\/p><\/div><p style=\"text-align: justify;\">Electromagnetic metrology section has already completed a technology transfer for \u201cprocess-know how for Tissue Equivalent liquids as per IEEE-1528 standard\u201d on Sept 24, 2020. We are working to extend the scope of this by preparation or standard TELs for upcoming 5G frequencies. These TELs are being prepared as per by the new IEEE\/IEC-62209 1528: 2020 standard, which require different chemicals from the ones used for previous studies.<\/p><p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.getinfo.global\/wp-content\/uploads\/2021\/10\/2-1.png\" alt=\"\" width=\"421\" height=\"277\" class=\"aligncenter size-full wp-image-3735\" srcset=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/10\/2-1.png 421w, https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/10\/2-1-300x197.png 300w\" sizes=\"(max-width: 421px) 100vw, 421px\" \/><\/p><p style=\"text-align: justify;\">Vector SAR measurement system, NPL has partnered with EURAMET consortium for development of calibration methods for probe calibration of time domain probes and arrays for vector SAR measurement systems. These probe measure simultaneous amplitude and phase at much faster rate than the existing SAR measurement systems\/probes. A Specific Absorption Rate (SAR) evaluation system is indigenously developed by CSIR- NPL. In this setup E-Field Sensor, Tissue equivalent liquid, Robotic automation (Robotic arm procured from epson) and a controlled GUI are being indigenously developed. The system is capable to evaluate SAR upto 3W\/kg with an expanded uncertainty of \u00b10.15W\/kg per 1.6W\/kg<\/p><p class=\"MsoNormal\" style=\"margin-bottom: .0001pt; text-align: justify; line-height: 115%;\"><span style=\"font-size: 12.0pt; line-height: 115%; font-family: 'Times New Roman','serif';\"><o:p><\/o:p><\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2013\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-2013\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Center For Rydberg Atom Based Quantum Measurements <\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2013\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-2013\"><p>CSIR-National Physical Laboratory (CSIR-NPL) being a National Metrological Institute (NMI) of India has the responsibility to realize all the physical measurements in terms of SI units or physical constants and accordingly update the related calibration facilities. Since metrology provides backbone to almost all technologies, establishment of primary standards are necessarily required for technological and hence economic growth of the country. In the field of electromagnetic measurement, the accuracy of the order of \u00b5V\/m in the measurement of E-field amplitude have not been achieved using the classical antennas or E-field probes. Also, calibration of conventional E-field probes follows something like a chicken-and-egg dilemma i.e., to calibrate the probe, you need a reference electric field whose values are accurately known. But to have a known field, you need a calibrated probe. This need for calibration limits accuracy and increases errors.<\/p><p>In contrast, this primary standard facility utilizes the properties Rydberg atoms whose outermost electrons in very high orbits act as highly sensitive electric probes. In this technique, two counter-propagating probe and coupling laser beams of different wavelengths interact in a vapor cell containing Rydberg atoms of Rubidium. Because of quantum-mechanical interaction and related effects, the atoms become transparent to the probe beam giving rise to EIT signal. But when an electric field from a radiofrequency (RF) wave is applied to the atoms along with the laser fields, the transmission spectra spectrum of the probe beam changes and this change is directly proportional to the applied electric field. This sensor would be self-calibrated or provide traceability to the universal Planck constants because of invariance of the atomic parameters. The developed single sensor system can be able to calibrate all the RF antennas working in the entire range starting from few MHz to 300 GHz with better reliability and sensitivity than the present standards.<\/p><p><span style=\"text-decoration: underline;\"><strong>AIM<\/strong><\/span><\/p><p>Establishment of primary standard for amplitude, phase, polarization and power measurement of RF E-field. In addition to it, a novel technique to determine the direction of incoming radio frequency field will also be established for increasing the accuracy of radar and wireless communication signals.<\/p><p><span style=\"text-decoration: underline;\"><strong>Objectives<\/strong><\/span><\/p><p>Measurement of RF E-field polarization, amplitude and power by exploiting the Rydberg states of alkali atom using radio frequency field that will cause Autler-Townes splitting of EIT peak has been realized<\/p><p>Determination of phase and angle of arrival of incident RF field using Rydberg atoms is in progress<\/p><p>Establishment of wireless communication and radar systems in the ultra-violet range utilizing angle of arrival of incident RF field in near future<\/p><p><span style=\"text-decoration: underline;\"><strong>Key Papers<\/strong><\/span><\/p><ul><li><a href=\"https:\/\/scholar.google.com\/citations?user=J3qBDTAAAAAJ&amp;hl=en&amp;oi=sra\">HS\u00a0Rawat<\/a>,\u00a0<a href=\"https:\/\/scholar.google.com\/citations?user=sDAoRvEAAAAJ&amp;hl=en&amp;oi=sra\">SK Dubey<\/a>, VN Ojha. Distinction between double electromagnetically induced transparency and double Autler\u2013Townes splitting in RF-driven four-level ladder 87Rb atomic vapor. J. Phys. B: At. Opt. Phys. July 6, 2018. D<strong>OI<\/strong>\u00a010.1088\/1361-6455\/aacdd9<\/li><li>Harish Singh Rawat, Satya Kesh Dubey, and Vijay Narain Ojha. Polarization dependence of interferences inside rubidium atomic vapor governing microwave vector E-field metrology. J. Opt. Soc. Am. 2019. DOI 10.1364\/JOSAB.36.003547<\/li><li>Monika, Harish Singh Rawat &amp; Satya Kesh Dubey. RF E-field Sensing Using Rydberg Atom-Based Microwave Electrometry. <a href=\"https:\/\/link.springer.com\/journal\/12647\">MAPAN<\/a>, 2020. DOI 10.1007\/s12647-020-00404-2<\/li><\/ul><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2014\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-2014\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Magnetic Metrology<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2014\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-2014\"><p style=\"text-align: justify;\"><span style=\"color: #556b2f;\">This section is responsible for maintaining and upgrading National Standard related to the magnetic parameter like Magnetic flux Density, Magnetic flux, turn area of search coil, power loss measurement of electrical steel, through continuous development and providing calibration\/test services (as per ISO\/IEC: 17025 guidelines) to more than 100 customers (MSME sectors, Large scale industries, Govt. organizations and R&amp;D institutes like Indian Air Force, Air India, Power Grid, CPRI, IDEMI, ERTL, ETDC, ABB, Siemens, Samsung, GE Healthcare, L&amp;T, Adani power, Genus Power, Secure Meters etc.) to improve the quality infrastructure of India.<\/span><\/p><p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.getinfo.global\/wp-content\/uploads\/2021\/10\/3-1.png\" alt=\"\" width=\"691\" height=\"361\" class=\"aligncenter size-full wp-image-3751\" srcset=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/10\/3-1.png 691w, https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/10\/3-1-300x157.png 300w\" sizes=\"(max-width: 691px) 100vw, 691px\" \/><\/p><p><strong><u>Available Facilities<\/u><\/strong><\/p><ul><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Scalar RF reflection coefficient and attenuation: reflection coefficient in \u00a0 \u00a0waveguide5.8 GHz to 18 GHz<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Vector\/ Scalar \u00a0RF reflection coefficient and attenuation: VSWR in coaxial line 1 MHz to 50 GHz<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Scalar RF reflection coefficient and attenuation: attenuation in coaxial lineupto 40 GHz<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Scalar RF reflection coefficient and attenuation: attenuation in coaxial line: 1 MHz to 40 GHz<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Scalar RF reflection coefficient and attenuation: attenuation in waveguide from 5.8 GHz to 18 GHz<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">E- Field Measurements Upto 3 GHz<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Low magnetic field measurement facility (AC\/DC): 1 to 2000 \u03bcT (expanded uncertainty 1.6-0.5 %).<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">AC magnetic field measurement setup: range 10 mG to 20 G (50 Hz).<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Magnetic flux measurement of range 0.0001-10 weber with uncertainty of \u00b10.005 to 0.15 %.<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Cesium magnetometer: measuring magnetic field of Nano tesla range i.e., 10000-1 nT.<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Epstein frame setup: measurement of parameters of electrical steel strips such as specific power loss, peak value of magnetic polarization, and peak value of magnetic field strength .<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">VSM (Vibrating sample magnetometer): magnetic characterization of materials (system under maintenance).<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">MPMS (magnetic properties measuring system):Measures magnetic properties of materials i.e., Magnetic moment: magnetization, susceptibility (T=1.8\u2013400 K &amp; B=0\u20137 T).<\/span><\/li><\/ul><p class=\"heading-color text-justify\"><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2015\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-2015\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Calibration and Test Facilities Available<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2015\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-2015\"><ul><li style=\"text-align: justify;\"><span style=\"color: #556b2f;\">Calibration of permanent Magnet<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Calibration of AC\/DC Gaussmeter<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Calibration of Magnetic field indicator<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Calibration of low field magnetometer<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Calibration of Helmholtz Coil<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Calibration of Fluxmeter<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Calibration of Turn area of search coil<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Testing of AC\/DC electromagnet<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Power loss measurement of Electrical Steel<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Magnetic Radiation Measurement<\/span><\/li><\/ul><p style=\"text-align: left;\"><span style=\"color: #556b2f;\">The second major activity of our group is actively involved in research on Magnetic materials, Multiferroic materials, Spintronic, Magneto Resistance materials for development of magnetic sensor.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2016\" class=\"elementor-tab-title\" data-tab=\"6\" role=\"button\" aria-controls=\"elementor-tab-content-2016\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Research Activities<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2016\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"6\" role=\"region\" aria-labelledby=\"elementor-tab-title-2016\"><ul><li style=\"text-align: justify;\"><span style=\"color: #556b2f;\">Materials R &amp; D for Magnetic Metrological Applications.<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">R &amp; D on Magneto resistance based Material.<\/span><\/li><li style=\"text-align: left;\"><span style=\"color: #556b2f;\">Thin Film Preparation by RF Sputtering &amp; Spin Coater Facility.<\/span><\/li><\/ul><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2017\" class=\"elementor-tab-title\" data-tab=\"7\" role=\"button\" aria-controls=\"elementor-tab-content-2017\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Team<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2017\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"7\" role=\"region\" aria-labelledby=\"elementor-tab-title-2017\"><ul><li><strong>Dr. Ashish Agarwal<\/strong><br \/>Chief Scientist &amp; Professor (AcSIR)<\/li><li><strong>Dr. Satyakesh Dubey<\/strong><br \/>Sr. Principal Scientist<\/li><li><strong>Dr. Alok Prakash<\/strong><br \/>Scientist<\/li><li><strong>Mr. Anurag Kr. Katiyar<\/strong><br \/>Technical Assistant<\/li><li><strong>Mr. Mange Ram<\/strong><br \/>Sr. Technician-II<\/li><li><strong>Mrs. Manno<\/strong><br \/>Work Assistant<\/li><\/ul><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-2018\" class=\"elementor-tab-title\" data-tab=\"8\" role=\"button\" aria-controls=\"elementor-tab-content-2018\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Contact<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t<div id=\"elementor-tab-content-2018\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"8\" role=\"region\" aria-labelledby=\"elementor-tab-title-2018\"><p><strong>Dr. Satyakesh Dubey<\/strong><br \/><span>Sr. Principal Scientist &amp; Associate Professor (AcSIR)<\/span><br \/><span>Division: Indian Standard Time<\/span><br \/><span>Section: \u00a0Electromagnetic Metrology Section<\/span><br \/><span>Email:\u00a0<\/span>dubeysk<span>.nplindia@csir.res.in<\/span><br \/><span>Phone: +91-011-45609313<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"has_eae_slider has_ma_el_bg_slider elementor-section elementor-top-section elementor-element elementor-element-f9f1843 elementor-section-full_width elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"69819\" data-id=\"f9f1843\" 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