{"id":99,"date":"2025-11-08T18:22:11","date_gmt":"2025-11-08T18:22:11","guid":{"rendered":"https:\/\/foredencnc.com\/?p=99"},"modified":"2025-12-05T09:47:23","modified_gmt":"2025-12-05T09:47:23","slug":"vw-rod-extensometer-%ec%a7%80%ec%a4%91%eb%b3%80%ec%9c%84%ea%b3%84","status":"publish","type":"post","link":"https:\/\/foredencnc.com\/?p=99","title":{"rendered":"VW Rod Extensometer (\uc9c0\uc911\ubcc0\uc704\uacc4)"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><strong>Description<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The V.W Inclinometer is useful for measuring ground displacement caused by stress concentration (convergence) during excavation works such as tunnels, mines, and communication ducts.<\/li>\n\n\n\n<li>When displacement occurs due to rock movement or relaxation, it is transferred to the VW displacement sensor through the anchor rod. The tension of the vibrating wire changes accordingly.<\/li>\n\n\n\n<li>When the vibrating wire is magnetized by the magnetic coil, it generates a resonant frequency that is transmitted to the readout device, where it is displayed in engineering units. This allows measurement of the rate, ratio, magnitude, and range of displacement.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"396\" height=\"215\" src=\"https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/Screenshot-2025-11-09-010511.png\" alt=\"\" class=\"wp-image-100\" srcset=\"https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/Screenshot-2025-11-09-010511.png 396w, https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/Screenshot-2025-11-09-010511-300x163.png 300w\" sizes=\"auto, (max-width: 396px) 100vw, 396px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Composition &amp; Characteristics<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u25a3 <strong>Product Components<\/strong><\/h4>\n\n\n\n<p>\u2460 VW Displacement Sensor<br>\u2461 Cable<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u25a3 <strong>Features<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The VW displacement sensor is designed with a total measuring range of 50 mm.<\/li>\n\n\n\n<li>Before shipment, each sensor is individually calibrated using a dedicated calibration device to ensure reliability by matching displacement with frequency characteristics.<\/li>\n\n\n\n<li>A precision-grade temperature sensor is built in to compensate for thermal expansion of the gauge caused by temperature variation.<\/li>\n\n\n\n<li>The product is waterproof and corrosion-resistant.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Specification<\/h4>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>Product Specifications<\/title>\n    <style>\n        body {\n            font-family: Arial, sans-serif;\n            padding: 20px;\n            max-width: 1200px;\n            margin: 0 auto;\n        }\n        table {\n            border-collapse: collapse;\n            width: 100%;\n            box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n        }\n        th, td {\n            border: 1px solid #999;\n            padding: 12px;\n        }\n        th {\n            font-weight: bold;\n            text-align: center;\n        }\n        td:first-child {\n            font-weight: bold;\n          \n        }\n        td[colspan=\"2\"] {\n            text-align: center;\n        }\n        td:not(:first-child) {\n            text-align: center;\n        }\n    <\/style>\n<\/head>\n<body>\n    <table>\n        <tr>\n            <th>Model<\/th>\n            <th>SJ-1100 (Type-1: Sliding Anchor)<\/th>\n            <th>SJ-1101 (Type-2: Embedded Type)<\/th>\n        <\/tr>\n        <tr>\n            <td>Applicable Sensor<\/td>\n            <td colspan=\"2\">Vibrating Wire Sensor (VW Type)<\/td>\n        <\/tr>\n        <tr>\n            <td>Measurement Range<\/td>\n            <td colspan=\"2\">1,400 ~ 3,500Hz (0 ~ 50mm)<\/td>\n        <\/tr>\n        <tr>\n            <td>Measurement Range (Strain)<\/td>\n            <td colspan=\"2\">Min 1,000 ~ Max 4,000\u00b5\u03b5<\/td>\n        <\/tr>\n        <tr>\n            <td>Resolution<\/td>\n            <td colspan=\"2\">0.01mm<\/td>\n        <\/tr>\n        <tr>\n            <td>Accuracy<\/td>\n            <td colspan=\"2\">\u00b10.25% FSR<\/td>\n        <\/tr>\n        <tr>\n            <td>Non-linearity<\/td>\n            <td colspan=\"2\">\u00b10.5% FSR<\/td>\n        <\/tr>\n        <tr>\n            <td>Operating Temperature<\/td>\n            <td colspan=\"2\">-20\u00b0C ~ 50\u00b0C<\/td>\n        <\/tr>\n        <tr>\n            <td>Temperature Sensor Operating Range<\/td>\n            <td>RTD: -45\u00b0C ~ 100\u00b0C<\/td>\n            <td>Thermistor: -30\u00b0C ~ 80\u00b0C<\/td>\n        <\/tr>\n        <tr>\n            <td>Temperature Sensor Accuracy<\/td>\n            <td>RTD: \u00b10.7\u00b0C<\/td>\n            <td>Thermistor: \u00b11\u00b0C<\/td>\n        <\/tr>\n        <tr>\n            <td>Thermal Expansion Coefficient<\/td>\n            <td colspan=\"2\">11 \u00d7 10\u207b\u2076\u00b0C<\/td>\n        <\/tr>\n        <tr>\n            <td>Number of Measuring Points<\/td>\n            <td colspan=\"2\">4 Points<\/td>\n        <\/tr>\n        <tr>\n            <td>Minimum Borehole Diameter<\/td>\n            <td colspan=\"2\">\u00d838mm or more<\/td>\n        <\/tr>\n        <tr>\n            <td>Sensor Body<\/td>\n            <td colspan=\"2\">Special Stainless Steel, Copper Alloy<\/td>\n        <\/tr>\n        <tr>\n            <td>Anchor Rod<\/td>\n            <td colspan=\"2\">Stainless Steel (\u00d84\u00d7\u00d86mm)<\/td>\n        <\/tr>\n        <tr>\n            <td>Anchor Rod Protective Cover<\/td>\n            <td colspan=\"2\">Nylon Tube (\u00d88\u00d7\u00d810mm)<\/td>\n        <\/tr>\n        <tr>\n            <td>Signal Cable<\/td>\n            <td colspan=\"2\">\u00d810mm, 0.235mm\u00b2 \u00d7 8C Shielded PVC Cable (3m)<\/td>\n        <\/tr>\n    <\/table>\n<\/body>\n<\/html>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>This product is subject to change without prior notice for quality improvement.<\/summary>\n<p><\/p>\n<\/details>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"785\" height=\"149\" src=\"https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/image-56.png\" alt=\"\" class=\"wp-image-1533\" srcset=\"https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/image-56.png 785w, https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/image-56-300x57.png 300w, https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/image-56-768x146.png 768w, https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/image-56-465x88.png 465w, https:\/\/foredencnc.com\/wp-content\/uploads\/2025\/11\/image-56-695x132.png 695w\" sizes=\"auto, (max-width: 785px) 100vw, 785px\" \/><\/figure>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>Component Specifications<\/title>\n    <style>\n        body {\n            font-family: Arial, sans-serif;\n            max-width: 1000px;\n            margin: 50px auto;\n            padding: 20px;\n            min-height: 100vh;\n        }\n        \n        .container {\n            background: white;\n            border-radius: 15px;\n            padding: 40px;\n            box-shadow: 0 20px 60px rgba(0,0,0,0.3);\n        }\n        \n        h1 {\n            text-align: center;\n            margin-bottom: 40px;\n        }\n        \n        .table-wrapper {\n            display: flex;\n            gap: 30px;\n            flex-wrap: wrap;\n            justify-content: center;\n        }\n        \n        table {\n            border-collapse: collapse;\n            background-color: white;\n            box-shadow: 0 4px 15px rgba(0,0,0,0.1);\n            border-radius: 10px;\n            overflow: hidden;\n        }\n        \n        th, td {\n            padding: 15px 25px;\n            text-align: left;\n            border: 1px solid #ddd;\n        }\n        \n        th {\n            background: linear-gradient(135deg, #4ECDC4 0%, #44A8FF 100%);\n            color: white;\n            font-weight: bold;\n        }\n        \n        td {\n            background: #fafafa;\n        }\n        \n        tr:hover td {\n            background: #e3f2fd;\n        }\n        \n        .table-title {\n            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);\n            color: white;\n            text-align: center;\n            font-weight: bold;\n            padding: 15px;\n        }\n    <\/style>\n<\/head>\n<body>\n    <div class=\"container\">\n        <h1>Component Specifications<\/h1>\n        \n        <div class=\"table-wrapper\">\n            <!-- Components Table -->\n            <table>\n                <thead>\n                    <tr>\n                        <th colspan=\"2\" class=\"table-title\">Components<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td><strong>A<\/strong><\/td>\n                        <td>Cable<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>B<\/strong><\/td>\n                        <td>Connector<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>C<\/strong><\/td>\n                        <td>Head<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>D<\/strong><\/td>\n                        <td>Pipe<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>E<\/strong><\/td>\n                        <td>Housing (A)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>F<\/strong><\/td>\n                        <td>Housing (B)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>G<\/strong><\/td>\n                        <td>Sensor<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>F<\/strong><\/td>\n                        <td>End Cover<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n\n            <!-- Product Specifications Table -->\n            <table>\n                <thead>\n                    <tr>\n                        <th colspan=\"2\" class=\"table-title\">Product Specifications<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td><strong>Length<\/strong><\/td>\n                        <td>4m<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>Standard Cable Length (mm)<\/strong><\/td>\n                        <td>1,000<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>Housing Diameter (mm)<\/strong><\/td>\n                        <td>32<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>Pipe Diameter (mm)<\/strong><\/td>\n                        <td>25<\/td>\n                    <\/tr>\n                    <tr>\n                        <td><strong>Weight (kg)<\/strong><\/td>\n                        <td>4.5<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n    <\/div>\n<\/body>\n<\/html>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description Composition &amp; Characteristics \u25a3 Product Components \u2460 VW Displacement Sensor\u2461 Cable \u25a3 Features Specification Product Specifications Model SJ-1100 (Type-1: Sliding Anchor) SJ-1101 (Type-2: Embedded Type) Applicable Sensor Vibrating Wire Sensor (VW Type) Measurement Range 1,400 ~ 3,500Hz (0 ~ 50mm) Measurement Range (Strain) Min 1,000 ~ Max 4,000\u00b5\u03b5 Resolution<span class=\"more-link\"><a href=\"https:\/\/foredencnc.com\/?p=99\">Read More &rarr;<\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":100,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,136,3,116,133],"tags":[48,49],"class_list":["entry","author-editor","post-99","post","type-post","status-publish","format-standard","has-post-thumbnail","category-extensometers","category-measurements","category-products","category-sensor-product","category-sensors","tag-vw-rod-extensometer","tag-49"],"_links":{"self":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/99","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=99"}],"version-history":[{"count":11,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/99\/revisions"}],"predecessor-version":[{"id":1776,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/99\/revisions\/1776"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/media\/100"}],"wp:attachment":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=99"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=99"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=99"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}