{"id":3709,"date":"2026-03-03T07:32:46","date_gmt":"2026-03-03T07:32:46","guid":{"rendered":"https:\/\/nbaem.com\/?p=3709"},"modified":"2026-03-03T08:40:12","modified_gmt":"2026-03-03T08:40:12","slug":"what-magnet-are-used-in-magnetic-encoder","status":"publish","type":"post","link":"https:\/\/nbaem.com\/et\/what-magnet-are-used-in-magnetic-encoder\/","title":{"rendered":"What Magnets Are Used in Magnetic Encoder Guide"},"content":{"rendered":"<h2>Core Materials Used in Magnetic Encoders<\/h2>\n<p>Choosing the wrong magnetic material is the fastest way to trigger signal noise or total thermal failure in a sensor assembly. We focus on four primary materials to ensure high <strong>rotary encoder resolution<\/strong>, balancing <strong><a href=\"https:\/\/en.wikipedia.org\/wiki\/Remanence\" target=\"_blank\" rel=\"noopener\">Remanentsus<\/a> (Br)<\/strong> ja <strong>Koerciviteet (Hc)<\/strong> to meet specific application demands.<\/p>\n<ul>\n<li><strong>Sinterdatud Neod\u00fc\u00fcmi (NdFeB):<\/strong> This is our top choice for high flux density. By using high-grade <strong>Sintered Neodymium<\/strong> (such as <strong>N42SH<\/strong>), we ensure a powerful magnetic field that maintains signal integrity even with generous <strong>\u00f5huvahe tolerantsid<\/strong>. It is the industry standard for <strong>haruldaste muldade magnetid<\/strong> where compact size and maximum strength are non-negotiable.<\/li>\n<li><strong>Samarium-kobalt (SmCo):<\/strong> We specify SmCo for environments where thermal drift is a dealbreaker. With a superior <strong>temperature coefficient<\/strong>, these magnets operate reliably at <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> and beyond without the risk of permanent demagnetization.<\/li>\n<li><strong>Ferriit (keramiin):<\/strong> For cost-effective speed sensing, <strong>injection molded ferrite<\/strong> provides a stable, corrosion-resistant solution. While it offers lower flux than rare earth options, it is highly effective for high-volume consumer applications where budget is a primary constraint.<\/li>\n<li><strong>Sideakad magnets:<\/strong> To achieve complex multipole patterns or tight mechanical tolerances, we utilize bonded materials. These allow for <strong>magnetic field homogeneity<\/strong> in unique geometries, often eliminating the need for secondary machining.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Materjali t\u00fc\u00fcp<\/th>\n<th style=\"text-align: left;\">Maksimaalne t\u00f6\u00f6mperatuur<\/th>\n<th style=\"text-align: left;\">Magnetiline tugevus<\/th>\n<th style=\"text-align: left;\">Primary Advantage<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>NdFeB (N42SH)<\/strong><\/td>\n<td style=\"text-align: left;\">150\u00b0C \u2013 180\u00b0C<\/td>\n<td style=\"text-align: left;\">V\u00e4ga K\u00f5rge<\/td>\n<td style=\"text-align: left;\">Maximum signal-to-noise ratio<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>SmCo<\/strong><\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td style=\"text-align: left;\">K\u00f5rge<\/td>\n<td style=\"text-align: left;\">Exceptional thermal stability<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ferriit<\/strong><\/td>\n<td style=\"text-align: left;\">250\u00b0C<\/td>\n<td style=\"text-align: left;\">Madal<\/td>\n<td style=\"text-align: left;\">Lowest cost \/ Corrosion resistant<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Bonded<\/strong><\/td>\n<td style=\"text-align: left;\">120\u00b0C \u2013 150\u00b0C<\/td>\n<td style=\"text-align: left;\">Keskmine<\/td>\n<td style=\"text-align: left;\">Complex shapes \/ High precision<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Magnetization Patterns and Topology in Magnetic Encoders<\/h2>\n<p>Choosing the right magnetization pattern is just as critical as the material itself when determining <strong>what magnet are used in magnetic encoder<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>Hall-tingimuste andur<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<ul>\n<li><strong>Application:<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>.<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<\/ul>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>multipoolinea ringmagned<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<ul>\n<li><strong>T\u00e4psus:<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>rotary encoder resolution<\/strong>.<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <a href=\"https:\/\/nbaem.com\/et\/bonded-magnet-data-sheet\/\" target=\"_blank\" rel=\"noopener\">sidestatud magnetid<\/a> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<\/ul>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>\u00f5huvahe tolerants<\/strong>.<\/p>\n<ul>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<\/ul>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>magnetic field homogeneity<\/strong> stays within your required specs for industrial-grade reliability.<\/p>\n<h2>Technical Selection Criteria for Magnetic Encoder Magnets<\/h2>\n<p>Choosing the right magnet for an encoder isn\u2019t just about strength; it\u2019s about how that strength holds up under real-world stress. We balance four critical technical factors to ensure your <strong>Hall effect sensors<\/strong> or AMR sensors provide reliable data without signal drift.<\/p>\n<h3>Thermal Stability and Remanence<\/h3>\n<p>Heat is the enemy of magnetic precision. Every material has a specific <strong>Temperature Coefficient of Remanence (Br)<\/strong>, dictating how much flux density you lose as the motor heats up. For applications reaching extreme environments, we utilize <a href=\"https:\/\/nbaem.com\/et\/high-temperature-magnets\/\">k\u00f5rge temperatuuriga magnetid<\/a> to prevent permanent demagnetization and maintain a stable <strong>Koerciviteet (Hc)<\/strong>.<\/p>\n<h3>Air Gap Management and Flux Strength<\/h3>\n<p>The distance between the magnet and the sensor\u2014the <strong>\u00f5huvahe tolerants<\/strong>\u2014directly impacts your <strong>rotary encoder resolution<\/strong>.<\/p>\n<ul>\n<li><strong>Small Air Gaps:<\/strong> Allow for lower-grade magnets or thinner profiles.<\/li>\n<li><strong>Large Air Gaps:<\/strong> Require materials with high <strong>Remanentsus (Br)<\/strong>, such as <strong>Sintered Neodymium<\/strong>, to project a field strong enough for the sensor to detect clearly.<\/li>\n<\/ul>\n<h3>Mechanical Integrity: Sintered vs. Bonded<\/h3>\n<p>The manufacturing method determines the magnet\u2019s physical limits and magnetic output.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">omadus<\/th>\n<th style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<th style=\"text-align: left;\">Sidustatud magnetid<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Magnetic Output<\/strong><\/td>\n<td style=\"text-align: left;\">Highest (Max Flux)<\/td>\n<td style=\"text-align: left;\">Keskmine<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong><\/td>\n<td style=\"text-align: left;\">Limited (Simple geometries)<\/td>\n<td style=\"text-align: left;\">High (Injection molded)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Kestvus<\/strong><\/td>\n<td style=\"text-align: left;\">Brittle (Requires coating)<\/td>\n<td style=\"text-align: left;\">Tough (Polymer matrix)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Tolerance<\/strong><\/td>\n<td style=\"text-align: left;\">Requires grinding<\/td>\n<td style=\"text-align: left;\">High precision (Net shape)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Magnetic Consistency and Angle Error<\/h3>\n<p>To minimize <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> in software, the hardware must be perfect. We prioritize <strong>magnetic field homogeneity<\/strong> during production. If the magnetic poles are unevenly distributed, the sensor reports \u201cjitter,\u201d leading to poor positioning. By ensuring consistent <a href=\"https:\/\/nbaem.com\/et\/magnetization-and-demagnetization-for-permanent-magnet\/\" target=\"_blank\" rel=\"noopener\">magnetization and demagnetization<\/a> standards, we provide the uniformity needed for high-precision industrial automation.<\/p>\n<h2>Material Comparison for Magnetic Encoder Magnets<\/h2>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>Remanentsus (Br)<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>Sintered Neodymium<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>temperature coefficient<\/strong>.<\/p>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <a href=\"https:\/\/nbaem.com\/et\/products\/samarium-cobalt-magnets\/\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/a> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<th style=\"text-align: left;\">Maksimaalne t\u00f6\u00f6mperatuur<\/th>\n<th style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<th style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<th style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Neod\u00fcma (NdFeB)<\/strong><\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td style=\"text-align: left;\">V\u00e4ga K\u00f5rge<\/td>\n<td style=\"text-align: left;\">Medium\/High<\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Sammarium-kobalt (SmCo)<\/strong><\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td style=\"text-align: left;\">K\u00f5rge<\/td>\n<td style=\"text-align: left;\">K\u00f5rge<\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ferriit (Savinik)<\/strong><\/td>\n<td style=\"text-align: left;\">250\u00b0C<\/td>\n<td style=\"text-align: left;\">Madal<\/td>\n<td style=\"text-align: left;\">v\u00e4ga madal<\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Sidustatud magnetid<\/strong><\/td>\n<td style=\"text-align: left;\">120\u00b0C \u2013 150\u00b0C<\/td>\n<td style=\"text-align: left;\">Keskmine<\/td>\n<td style=\"text-align: left;\">Keskmine<\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<ul>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> <strong>Ferriit<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> <strong>Sintered Neodymium<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>\u00f5huvahe tolerants<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> <strong>Sided magnetid<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<\/ul>\n<h2>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h2>\n<p>The physical geometry of a magnet dictates how it interacts with the sensor and fits into your mechanical assembly. When deciding <strong>what magnet are used in Magnetic encoder<\/strong> applications, the choice usually falls into three primary categories based on the sensing architecture.<\/p>\n<hr \/>\n<h3>Disc Magnets for End-of-Shaft Sensing<\/h3>\n<p>Disc magnets are the standard choice for compact motor feedback. Positioned at the end of a rotating shaft, these magnets typically utilize <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>.<\/p>\n<ul>\n<li><strong>Best For:<\/strong> Small BLDC motors and actuators.<\/li>\n<li><strong>Key Advantage:<\/strong> Simple alignment with a <strong>Hall-tingimuste andur<\/strong> or <strong>AMR<\/strong> chip placed directly opposite the magnet face.<\/li>\n<li><strong>Material:<\/strong> Often <strong>Sintered Neodymium<\/strong> for high <strong>remanence (Br)<\/strong> in tight spaces.<\/li>\n<\/ul>\n<h3>Multipole Ring Magnets for Off-Axis Sensing<\/h3>\n<p>For applications like large robotic joints or hollow-shaft motors, a <strong>multipole ring magnet<\/strong> is required. These are mounted around the shaft rather than at the end.<\/p>\n<ul>\n<li><strong>Sensing Style:<\/strong> Radial or axial sensing where the sensor \u201creads\u201d the poles as they pass by.<\/li>\n<li><strong>T\u00e4psus:<\/strong> High pole counts significantly improve <strong>rotary encoder resolution<\/strong>.<\/li>\n<li><strong>Kohandamine:<\/strong> Me kasutame <strong>injection molded ferrite<\/strong> or bonded NdFeB to create complex multipole patterns that maintain strict <strong>magnetic field homogeneity<\/strong>.<\/li>\n<\/ul>\n<h3>Magnetic Strips for Linear Encoders<\/h3>\n<p>In linear motion control, magnets are provided in flexible or rigid strips. These feature alternating north-south poles along the length of the track.<\/p>\n<ul>\n<li><strong>Applications:<\/strong> CNC stages, hydraulic cylinders, and industrial automation.<\/li>\n<li><strong>Reliability:<\/strong> These strips offer excellent <strong>\u00f5huvahe tolerants<\/strong>, ensuring the sensor maintains a clean signal even with slight mechanical play.<\/li>\n<\/ul>\n<hr \/>\n<h3>Shape and Application<\/h3>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Form Factor<\/th>\n<th style=\"text-align: left;\">Primary Polarization<\/th>\n<th style=\"text-align: left;\">Common Application<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Disc<\/strong><\/td>\n<td style=\"text-align: left;\">Diametriline<\/td>\n<td style=\"text-align: left;\">Compact motor feedback<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ring<\/strong><\/td>\n<td style=\"text-align: left;\">Multipole (Radial\/Axial)<\/td>\n<td style=\"text-align: left;\">Robotics &amp; Hollow-shafts<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Strip<\/strong><\/td>\n<td style=\"text-align: left;\">Multi-pole Linear<\/td>\n<td style=\"text-align: left;\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <a href=\"https:\/\/nbaem.com\/et\/in-home-alliance\/\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/a> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>.<\/p>\n<h2>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h2>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>what magnet are used in Magnetic encoder<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>magnetic field homogeneity<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<ul>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>Kvaliteedi tagamine:<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<\/ul>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong><a href=\"https:\/\/nbaem.com\/et\/nbaem-your-best-neodymium-magnet-supplier-from-china-5\/\" target=\"_blank\" rel=\"noopener\">neodymium magnet supplier from China<\/a><\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<h2>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h2>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>what magnet are used in Magnetic encoder<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>Sammarium-kobalt (SmCo)<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>Sintered Neodymium<\/strong>. These <strong>haruldaste muldade magnetid<\/strong> cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits <strong>Koerciviteet (Hc)<\/strong> and low <strong>temperature coefficient<\/strong>, ensuring the magnetic field remains stable even under extreme thermal stress.<\/p>\n<h3>How does the air gap affect my encoder resolution?<\/h3>\n<p>The <strong>\u00f5huvahe tolerants<\/strong> directly impacts the signal-to-noise ratio of the <strong>Hall-tingimuste andur<\/strong> or <strong>AMR (Anisotropic Magneto-Resistive)<\/strong> chip. A larger air gap results in lower <strong>Remanentsus (Br)<\/strong> at the sensor face, which can lead to jitter and reduced <strong>rotary encoder resolution<\/strong>. It is essential to <a href=\"https:\/\/nbaem.com\/et\/how-to-measure-magnet-strength\/\" target=\"_blank\" rel=\"noopener\">measure magnet strength<\/a> at the specific operating distance to ensure the flux density meets the sensor\u2019s minimum requirements.<\/p>\n<h3>Why is diametric polarization preferred for rotary sensors?<\/h3>\n<p><strong>Diametric polarization<\/strong> is the industry standard for <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>. Unlike axial magnets, a diametrically magnetized disc provides a rotating magnetic field vector that the sensor interprets as a sine\/cosine wave. This setup is vital for achieving high-accuracy absolute positioning and effective <strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>.<\/p>\n<h3>Can I use ferrite magnets for high-precision applications?<\/h3>\n<p>K\u00f5ikjal <strong>injection molded ferrite<\/strong> is a fantastic, cost-effective choice for basic speed sensing or high-volume automotive pumps, it usually falls short for high-precision feedback. For applications requiring strict <strong>magnetic field homogeneity<\/strong>, I always advise using <strong>Sintered Neodymium<\/strong>. Neodymium provides the consistent flux distribution needed to minimize non-linearity and signal distortion.<\/p>\n<ul>\n<li><strong>High-Temp Stability:<\/strong> Choose SmCo for 200\u00b0C+ environments.<\/li>\n<li><strong>Precision Sensing:<\/strong> Stick to Sintered NdFeB for better homogeneity.<\/li>\n<li><strong>Linear Applications:<\/strong> Utilize multipole magnetic strips for long-travel accuracy.<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong> Use bonded or ferrite magnets for simple tachometer functions.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Discover what magnets are used in magnetic encoders including Neodymium Ferrite and SmCo with guidance on materials magnetization and selection<\/p>","protected":false},"author":1,"featured_media":3708,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/03\/What_magnet_are_used_in_Magnetic_encoder_5CXgVqRI7-e1772526946163.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/posts\/3709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/comments?post=3709"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/posts\/3709\/revisions"}],"predecessor-version":[{"id":3713,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/posts\/3709\/revisions\/3713"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/media\/3708"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/media?parent=3709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/categories?post=3709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/et\/wp-json\/wp\/v2\/tags?post=3709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}