{"id":289041,"date":"2026-02-23T10:57:11","date_gmt":"2026-02-23T01:57:11","guid":{"rendered":"https:\/\/casscale.net\/product\/sample-product\/althen-sensors-fgdh-4a-frictional-torque-sensor-system\/"},"modified":"2026-02-23T10:57:11","modified_gmt":"2026-02-23T01:57:11","slug":"althen-sensors-fgdh-4a-frictional-torque-sensor-system","status":"publish","type":"product","link":"https:\/\/casscale.net\/en\/product\/sample-product\/althen-sensors-fgdh-4a-frictional-torque-sensor-system\/","title":{"rendered":"Althen Sensors \/ FGDH-4A Frictional Torque Sensor System"},"content":{"rendered":"<h4>FGDH-4A Frictional Torque Sensor System<\/h4>\n<h6>Key features<\/h6>\n<ul>\n<li>No strain gauges on the drive shaft<\/li>\n<li>Clamp-on installation<\/li>\n<li>Wireless digital telemetry (2.4 GHz)<\/li>\n<li>Long operating time \u2013 up to 10 hours<\/li>\n<li>Switchable measuring ranges<\/li>\n<li>USB rechargeable without removing the sensor<\/li>\n<li>No calibration required<\/li>\n<li>Multiple shaft diameter options \u2013 \u00d820\u201330 mm, \u00d830\u201340 mm, \u00d840\u201350 mm<\/li>\n<\/ul>\n<h6>About the FGDH-4A Frictional Torque Sensor System<\/h6>\n<p>The\u00a0<strong>FGDH-4A<\/strong>\u00a0is a\u00a0<strong>friction-type torque sensor system<\/strong>\u00a0designed to measure torque generated on\u00a0<strong>rotating shafts<\/strong>\u00a0and transmit the data\u00a0<strong>digitally and wirelessly<\/strong>\u00a0to a dedicated receiver. Unlike conventional solutions that require strain gauges to be bonded to the drive shaft, the FGDH-4A enables\u00a0<strong>one-touch measurement<\/strong>, drastically reducing installation effort and preparation time.<\/p>\n<h6>Key benefits<\/h6>\n<ul>\n<li>No strain-gauge installation on the shaft: saves time and eliminates bonding\/wiring work<\/li>\n<li>Fast, simple mounting: clamp onto the shaft and secure with screws<\/li>\n<li>Wireless digital telemetry (2.4 GHz): long transmission distance and easy antenna setup<\/li>\n<li>Noise-resistant signal: digital transmitter\/receiver system, no cabling required<\/li>\n<li>Longer operating time: approx. 10 hours (vs. conventional FGDH-3A approx. 6 hours)<\/li>\n<li>High dynamic response: 1 kHz response frequency<\/li>\n<li>No calibration required: ready to use quickly<\/li>\n<li>USB rechargeable: recharge via USB power cable without removing the sensor<\/li>\n<li>Built-in sleep function: reduces battery drain for extended runtime<\/li>\n<\/ul>\n<h6>Measuring ranges<\/h6>\n<p>Switchable between three ranges: \u00b13200 \/ \u00b16400 \/ \u00b116000 \u00d7 10\u207b\u2076 strain. This wide range supports measurements from small to large torque amplitudes.<\/p>\n<h6>Shaft diameter options<\/h6>\n<p>Available for the following shaft diameter ranges (depending on version):<\/p>\n<ul>\n<li>\u00d8 20\u201330 mm<\/li>\n<li>\u00d8 30\u201340 mm<\/li>\n<li>\u00d8 40\u201350 mm<\/li>\n<\/ul>\n<h6>How it works: friction-type sensing<\/h6>\n<p>Traditional strain-gauge torque measurement requires surface preparation, bonding, curing, and lead wiring. The FGDH-4A uses\u00a0<strong>friction-type gauges<\/strong>, so\u00a0<strong>no gluing is needed<\/strong>. The sensor is integrated into the clamp-on unit, making installation\u00a0<strong>quick and repeatable<\/strong>.<\/p>\n<h6>Digital telemetry for reliable measurements<\/h6>\n<p>The integrated\u00a0<strong>digital transmitter\/receiver<\/strong>\u00a0system provides robust, noise-resistant data transmission and simplifies setup by eliminating wiring. High-speed processing also reduces telemetry delay significantly compared to conventional systems.<\/p>\n<h6>Regulatory compliance (2.4 GHz)<\/h6>\n<p>Compliant with radio regulations in Japan, the European Union (EU), the United States, Canada, China, India, Australia, and the Republic of Korea.<\/p>\n<h6 id=\"technical-specifications-title\">Technical Specifications<\/h6>\n<div class=\"rounded border border-gray-line\/20 overflow-hidden\">\n<table class=\"!my-0\">\n<thead class=\"sr-only\">\n<tr>\n<th>Specification<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th class=\"align-top\">Applicable shaft diameter<\/th>\n<td>\u03c620.0 \uff5e 30.0mm \/ \u03c630.0 \uff5e 40.0mm \/ \u03c640.0 \uff5e 50.0mm<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Capacity<\/th>\n<td>Depends on the diameter (outer and inner), material, surface roughness and surface treatment of the shaft<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Output<\/th>\n<td>Depends on the diameter (outer and inner), material, surface roughness and surface treatment of the shaft<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Allowable temperature<\/th>\n<td>-20 to +60 \u2103 (No dew condensation)<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Sampling frequency<\/th>\n<td>5kHz<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Frequency response<\/th>\n<td>1kHz<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Wireless specifications<\/th>\n<td>Conforms to 2.4 GHz band advanced low power data communication system<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Number of radio channels<\/th>\n<td>16 channels (paired with receiver radio channels)<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">External Dimensions<\/th>\n<td>\u00a0\u03c652\u00d750mm \/ \u03c664\u00d750mm \/ \u03c675\u00d750mm<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Protection rating<\/th>\n<td>Equivalent to IP51<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Continuous operating time<\/th>\n<td>Approx. 10 hours (23 \u2103 \u00b15 \u2103)<\/td>\n<\/tr>\n<tr>\n<th class=\"align-top\">Power supply<\/th>\n<td>lithium-ion rechargeable battery<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fast, Strain-Gauge-Free Torque Sensing with Digital Telemetry.<\/p>\n","protected":false},"featured_media":289040,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[5487],"product_cat":[3447],"product_tag":[5011],"class_list":{"0":"post-289041","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-althen-sensors","7":"product_cat-rotational-torque-sensor","8":"product_tag-rotary-torque-sensor","10":"first","11":"instock","12":"taxable","13":"shipping-taxable","14":"product-type-simple"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/product\/289041","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/comments?post=289041"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/media\/289040"}],"wp:attachment":[{"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/media?parent=289041"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/product_brand?post=289041"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/product_cat?post=289041"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/casscale.net\/en\/wp-json\/wp\/v2\/product_tag?post=289041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}