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Small Range Torque Sensors Allow Accurate Measurements to 0.2Nm

New low-capacity models of Sensor Technology’s non-contact torque sensors allow accurate measurement down to 200mNm (0.2Nm), for applications such as precision and high-speed robots, medical devices, protheses and implants, small drives and micro motors.
Fairport, NY: Saelig Company, Inc. has introduced new TorqSense SGR 510/520 Sensors to cover torque ranges from 0.2Nm to 1Nm, adding to previous models that extend measurements up to 13,000Nm. Based on a full four-element strain gauge bridge design, the SGR sensors have the ability to accurately measure and record sudden spikes in torque load. The TorqSense SGR measures torque at 4000 times per second and uses high performance signal conditioning to provide a corruption-free, high bandwidth torque monitoring tool. The design is further enhanced by 250% overrange and 400% overload capabilities, the elimination of side and end load errors, and real-time temperature compensation.
The non-contact signal transmission design means that the sensor exerts no load on the shaft it is monitoring, and maintenance-prone slip rings have been eliminated.
Three analog output channels on the 511 allow the SGR to measure real-time speed and power in addition to torque monitoring. Another output is dedicated to self-diagnostics and/or status functions. An Ethernet gateway module can also be fitted to the unit if needed.
This ability to cope with torque spikes is becoming increasingly important in automated machinery, integrated systems, test rigs and continuously monitored plant. They can have an immediate effect on operations, or they may indicate the beginnings of a problem. The SGR sensors are designed to accurately record torque data from any type of system, big or small, simple or complex, yet be robust enough for use in virtually any environment.
As well as analog outputs, TorqSense SGR 520/521 is also fitted with digital outputs for interfacing with modern instrumentation and laptops. This means that that the 520/521 can be set up directly from a PC that is running configuration software such as LabView or Sensor Technology’s TorqView. Optional interfaces include RS232, CANbus, and USB. Using the USB output, it is possible to connect up to 10 SGR 520/521s into one fully integrated system, allowing even the most complex installations to be comprehensively monitored from a single workstation.
Torque measurement is playing an increasingly important role in modern plant and machinery monitoring and control, enabling steady increases in efficiency, productivity, availability and accuracy – all key drivers in the advance towards ever-increasing efficient and reliable technology. The new SGR510/520 series suits torque measuring applications for testing, feedback control of drive mechanisms and a wide range of process control applications: motorsport and automotive design, wind and other renewable energy, aerospace, machine diagnostics, pharmaceutical and food manufacturing, etc.  These sensors are made by Sensor Technology Ltd., Europe’s premier torque transducer supplier, and are available from their USA distributor Saelig Company, Inc. Fairport, NY.  For detailed specifications, free technical assistance, or additional information, please contact 1-888-7SAELIG, via email:, or visit
About Saelig Company Inc.
Founded in 1988 in Rochester, New York, Saelig is a North American distributor with a growing reputation for finding and sourcing remarkable, unique test and measurement and control products and components for use in a wide variety of industries. Products lines are continuously added from sources across the globe, and are offered at competitive prices, accompanied by full in-house technical support, exceptional customer service, and fast delivery. For full details of available product lines, please visit

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