{"id":42,"date":"2026-03-29T19:43:07","date_gmt":"2026-03-29T19:43:07","guid":{"rendered":"https:\/\/nucliflare.com\/?post_type=product&#038;p=42"},"modified":"2026-05-14T17:11:31","modified_gmt":"2026-05-14T17:11:31","slug":"gm-counter-module","status":"publish","type":"product","link":"https:\/\/nucliflare.com\/index.php\/product\/gm-counter-module\/","title":{"rendered":"GM Counter Module"},"content":{"rendered":"<h2>Key Features<\/h2>\n<ul>\n<li>Programmable HV supply: <strong>50\u2013650 V<\/strong><\/li>\n<li>Adjustable PWM frequency: <strong>10\u2013500 kHz<\/strong><\/li>\n<li>PID-controlled HV stabilization<\/li>\n<li>Ripple monitoring<\/li>\n<li>Pulse counting and CPS measurement<\/li>\n<li>Real-time dose rate calculation [mSv\/h]<\/li>\n<li>Accumulated dose tracking [mSv]<\/li>\n<li>Two-region polynomial calibration engine<\/li>\n<li>Full Modbus register access (USB &amp; RS485)<\/li>\n<li>5V power supply<\/li>\n<li>Embedded diagnostics<\/li>\n<\/ul>\n<h2>Unified Communication Architecture<\/h2>\n<p>The module exposes a single Modbus register space.<\/p>\n<p>Whether connected via:<\/p>\n<ul>\n<li>USB (virtual COM port),<\/li>\n<li>RS485 bus,<\/li>\n<\/ul>\n<p>the command structure and register mapping remain identical.<\/p>\n<p>This simplifies:<\/p>\n<ul>\n<li>firmware integration,<\/li>\n<li>system validation,<\/li>\n<li>migration from development setups (USB) to field systems (RS485),<\/li>\n<li>remote configuration and diagnostics.<\/li>\n<\/ul>\n<p>No vendor-specific protocol.<br \/>\nNo separate USB command layer.<\/p>\n<h2>High-Voltage Section<\/h2>\n<p>Integrated HV converter includes:<\/p>\n<ul>\n<li>50\u2013650 V programmable output<\/li>\n<li>Configurable PWM frequency (10\u2013500 kHz)<\/li>\n<li>Configurable maximum duty cycle<\/li>\n<li>PID regulator (adjustable P and I gains)<\/li>\n<li>ADC-based voltage feedback<\/li>\n<li>Ripple estimation (1-second window)<\/li>\n<li>Hardware fault monitoring (overload \/ thermal)<\/li>\n<\/ul>\n<p>All parameters accessible and stored via Modbus.<\/p>\n<h2>Runtime Data (Modbus Input Registers)<\/h2>\n<p>Available parameters include:<\/p>\n<ul>\n<li>Total pulse counter<\/li>\n<li>Pulses per second (CPS)<\/li>\n<li>Dose rate [mSv\/h]<\/li>\n<li>Accumulated dose [mSv]<\/li>\n<li>Measured HV voltage<\/li>\n<li>HV ripple estimation<\/li>\n<li>PWM duty cycle<\/li>\n<li>5V supply voltage<\/li>\n<li>CPU and board temperature<\/li>\n<li>Modbus communication statistics<\/li>\n<li>HV fault status<\/li>\n<\/ul>\n<h2>Calibration Engine<\/h2>\n<p>Two polynomial regions with configurable switching threshold.<\/p>\n<p>Each region supports:<\/p>\n<ul>\n<li>Quadratic (a2)<\/li>\n<li>Linear (a1)<\/li>\n<li>Offset (a0)<\/li>\n<li>Exponent scaling<\/li>\n<\/ul>\n<p>Allows adaptation to different GM tubes without firmware modification.<\/p>\n<h2>Integration Model<\/h2>\n<p>The GM Counter Module is a system component intended for OEM integration.<\/p>\n<p>Designed to:<\/p>\n<ul>\n<li>eliminate external HV modules,<\/li>\n<li>provide full runtime observability,<\/li>\n<li>simplify embedded system design,<\/li>\n<li>reduce development time for radiation monitoring solutions.<\/li>\n<\/ul>\n<p>Typical integrations include:<\/p>\n<ul>\n<li>UAV radiation sensors<\/li>\n<li>Industrial monitoring cabinets<\/li>\n<li>Mobile survey platforms<\/li>\n<li>Environmental logging stations<\/li>\n<li>Research automation setups<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><strong>Modular Geiger-M\u00fcller Radiation Detection Board (Modbus over USB &amp; RS485)<\/strong><\/p>\n<p>The GM Counter Module is a compact, fully configurable Geiger-M\u00fcller tube interface designed for integration into radiation monitoring systems.<\/p>\n<p>It integrates a programmable high-voltage supply, pulse counting engine, dose calculation logic and a unified Modbus communication interface in a single 5V-powered board.<\/p>\n<p>The same Modbus register map is available via:<\/p>\n<ul>\n<li>USB 2.0 (microUSB, virtual COM \/ CDC)<\/li>\n<li>RS485 (Modbus RTU, non-isolated)<\/li>\n<\/ul>\n<p>This ensures seamless transition between laboratory configuration and industrial deployment without firmware changes.<\/p>\n","protected":false},"featured_media":43,"comment_status":"open","ping_status":"closed","template":"","meta":{"inline_featured_image":false},"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":{"0":"post-42","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-uncategorized","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/product\/42","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/comments?post=42"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/media\/43"}],"wp:attachment":[{"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/media?parent=42"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=42"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=42"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nucliflare.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=42"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}