{"id":1326,"date":"2021-09-24T09:38:05","date_gmt":"2021-09-24T09:38:05","guid":{"rendered":"https:\/\/www.nplindia.org\/?page_id=1326"},"modified":"2025-12-11T10:24:15","modified_gmt":"2025-12-11T10:24:15","slug":"length-dimension-and-nano-metrology-section","status":"publish","type":"page","link":"https:\/\/www.nplindia.in\/index.php\/science-technology\/physico-mechanical-metrology\/length-dimension-and-nano-metrology-section\/","title":{"rendered":"Length , Dimension &#038; Nano Metrology"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1326\" class=\"elementor elementor-1326\">\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-09f2e8e elementor-section-full_width elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"38255\" data-id=\"09f2e8e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div 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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=\"17177\" 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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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-a5a2982 jltma-glass-effect-no\" data-eae-slider=\"85803\" data-id=\"a5a2982\" 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-cc65b6c jltma-glass-effect-no elementor-widget elementor-widget-heading\" data-id=\"cc65b6c\" 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\">Length Dimension &amp; Nano 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-fd17948 elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"22828\" data-id=\"fd17948\" 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-7f2747b jltma-glass-effect-no\" data-eae-slider=\"26726\" data-id=\"7f2747b\" 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-c47c051 jltma-glass-effect-no elementor-widget elementor-widget-accordion\" data-id=\"c47c051\" 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<div id=\"elementor-tab-title-2061\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-2061\" 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<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2061\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-2061\"><div id=\"attachment_2034\" style=\"width: 474px\" class=\"wp-caption alignleft\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-2034\" src=\"https:\/\/www.getinfo.global\/wp-content\/uploads\/2021\/09\/1-6-300x244.png\" alt=\"Iodine127I2-frequency-stablised-He-Ne-Laser-the-primary-standard-facility-at-CSIR_NPL\" width=\"464\" height=\"377\" class=\"wp-image-2034\" srcset=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/1-6-300x244.png 300w, https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/1-6.png 379w\" sizes=\"(max-width: 464px) 100vw, 464px\" \/><p id=\"caption-attachment-2034\" class=\"wp-caption-text\">Iodine (<sup>127<\/sup>I<sub>2<\/sub>) Frequency Stablised He-Ne Laser: The Primary Standard<\/p><\/div><p style=\"text-align: justify;\">This section realizes and disseminates SI unit of length. Si unit of length is metre. The metre is defined as length of path travelled by light in vacuum in 1\/ 299792458 of second. SI Unit metre is realized here using an iodine stabilized He-Ne Laser. Traceability to SI unit is disseminated over several orders of magnitude from micrometer to tens of metre.<\/p><p style=\"text-align: justify;\">The laboratory is equipped with state of art instruments like Gauge Block Interferometer, Displacement Measuring interferometer (for linear, angular, straightness and flatness of bed measurements), Flatness Measuring Interferometers for optical flats etc., Length Measuring Machine, Coordinate Measuring machines, Gauge Block Comparators, Autocollimators etc. traceable to SI. Dimensional measurements including, length, angle Form are carried out using these state-of-the-art equipment, good environmental control, and superior techniques.\u00a0 Our efforts are\u00a0focused\u00a0on R and D in measurement techniques\u00a0for industrial needs, reducing turnaround time of calibration services and a better service. Our Calibration measurements capabilities have been internationally peer reviewed and are available at:<\/p><p style=\"text-align: justify;\">http:\/\/kcdb.bipm.org\/AppendixC\/country_list_search.asp?CountSelected=IN&branch=L\/DimMet<\/p><p style=\"text-align: left;\">The Standards of Dimension provides services to promote Global competitiveness in form of technical consultancy, measurement solutions, Calibration and testing services and trainings. It provides high accuracy measurements and follows international quality systems. Our services cover dimensional metrology needs over a large span. Our measurements results are highly valued by customers and a single measurement\/ calibration service has high leverage in terms of metrology\u00a0performed\u00a0at Industries.<\/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<div id=\"elementor-tab-title-2062\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-2062\" 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 Person<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2062\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-2062\"><p><a href=\"\/wp-content\/uploads\/2022\/08\/girija_moona@nplindia.pdf\" target=\"_blank\" rel=\"noopener\" style=\"color: #556b2f;\"><strong>Dr. Girija Moona<\/strong><\/a><br \/><span>Principal Scientist &amp; Head<\/span><br \/><span>Length Dimension and Nano Metrology<\/span><br \/><span>Apex Metrology Building, Room No. 15<\/span><br \/><span>National Physical Laboratory, New Delhi-110 012<\/span><br \/>Email: <span><a href=\"http:\/\/moonag@nplindia.org\" target=\"_blank\" rel=\"noopener\" style=\"color: #556b2f;\">moonag.nplindia@csir.res.in<\/a><br \/><\/span>Phone :<span>+91 1145609490<\/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<div id=\"elementor-tab-title-2063\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-2063\" 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\">Services Offered<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2063\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-2063\"><p>Industry\/ clients for India and abroad are \u00a0welcome to approach us for needs of measurements, training, consultancy services and \u00a0calibration.<\/p><p><strong>Dimensional Calibration Services<\/strong><\/p><p>For guidelines of calibration, please visit: <a href=\"\/index.php\/commercial-services\/calibration-testing\/\" target=\"_blank\" rel=\"noopener\">Centre for Calibration &amp; Testing (CFCT)<\/a><\/p><p><a href=\"\/wp-content\/uploads\/2021\/11\/DP-102.pdf\" target=\"_blank\" rel=\"noopener\">Download Brochure<\/a><\/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<div id=\"elementor-tab-title-2064\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-2064\" 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 Charges: Standards of Dimension <\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2064\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-2064\"><\/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-72cc4e4 elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"22148\" data-id=\"72cc4e4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\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-16d4c77 elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"32809\" data-id=\"16d4c77\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\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-c41981f elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"38712\" data-id=\"c41981f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\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-f79d95b elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"16390\" data-id=\"f79d95b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\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-ef4316d elementor-section-boxed elementor-section-height-default elementor-section-height-default jltma-glass-effect-no\" data-eae-slider=\"10376\" data-id=\"ef4316d\" 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-911fb74 jltma-glass-effect-no\" data-eae-slider=\"20171\" data-id=\"911fb74\" 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-c379a05 jltma-glass-effect-no elementor-invisible elementor-widget elementor-widget-image-gallery\" data-id=\"c379a05\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;}\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 25%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-1326 gallery-columns-4 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3MywidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzItOC5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/2-8.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/2-8-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2073\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2073'>\n\t\t\t\t1000 mm Length Measuring Machine\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"3\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3NCwidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzMtNi5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/3-6.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/3-6-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2074\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2074'>\n\t\t\t\tZygo Interferometer for Flatness has been installed recently for measurement of flatness and wedge angle of the optical flats\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3NSwidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzQtNy5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/4-7.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/4-7-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2075\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2075'>\n\t\t\t\tPrecision Roundness Measuring Machine\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"5\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3NiwidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzUtNS5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/5-5.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/5-5-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2076\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2076'>\n\t\t\t\tAn External Diameter Measurement Setup to achieve 40 nm measurement uncertainty\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"6\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3NywidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzYtMy5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/6-3.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/6-3-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2077\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2077'>\n\t\t\t\tFlick standard calibration with 60 nm measurement uncertainty for inhouse traceability of roundness through laser interferometer\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3OCwidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzctMy5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/7-3.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/7-3-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2078\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2078'>\n\t\t\t\t3D Coordinate Measuring Machine\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"c379a05\" data-elementor-lightbox-title=\"8\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjA3OSwidXJsIjoiaHR0cHM6XC9cL3d3dy5ucGxpbmRpYS5pblwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDlcLzgtMi5wbmciLCJzbGlkZXNob3ciOiJjMzc5YTA1In0%3D\" href='https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/8-2.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nplindia.in\/wp-content\/uploads\/2021\/09\/8-2-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-2079\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-2079'>\n\t\t\t\tGauge Block Interferometer (GB1300)\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\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 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