SensorData Technologies, a renowned industry supplier of standard and custom force meters, torque transducers, load cells, strain sensors and related instrumentation, has announced the global market introduction of the BT400 Series Bluetooth non-contact radio-coupled rotary flange torque sensor. This high-performance rotary torque transducer provides pinnacle performance in a variety of situations. The non-contact radio-coupled rotary flange torque sensor supplies measured data via radio transmission, eliminating the need for cumbersome wires. In turn, this new torque sensor demands less installation space than competing products. The BT400 Series non-contact radio-coupled rotary flange torque sensor is capable of measuring torque up to 8,000 lb-ft, at speeds up to 15,000 RPM.
Featuring an SAE4340 alloy steel construction with satin nickel finish, SensorData Technologies Inc. BT400 Series is available in six base models. The rated capacities of these non-contact radio-coupled rotary flange sensor torque sensors range from 50-250 ft-lb to 8,000 ft-lb and the torque sensor diameters from 2.5” to 9”. The BT400 Series features non-linearity and hysteresis specifications of 0.05 percent of rated output, a non-repeatability specification of 0.02 percent of rated output, maximum load of 150 percent of rated capacity standard with higher overload protection available, and rotor deflection at rated capacity (typ.) of 0.29 degrees. The high torsional stiffness of this rotary torque sensor, as well as its low rotating inertia, facilitates its increased frequency response. Rotary torque transducer units are designed to reliably operate over a compensated temperature range of –70 degrees Fahrenheit to 170 degrees, with useable range of –40 degrees Fahrenheit to 185 degrees. The specialized construction SensorData Technologies Inc. BT400 makes it immune to the harmful effects of EMI and ESD, as well as to interference incurred by nearby metal structures.
The new BT400 Series torque sensor may be installed directly into a dynamometer driveline, where its compact design, Bluetooth communication capabilities, and non-contact operation eliminate the need for external couplings or expensive alignment procedures. Its encapsulated onboard electronics also facilitate remote shunt calibration by providing strain gage bridge excitation, bridge output amplification, and conversion of the amplified signal into a 16-bit digital word. This onboard signal amplification and automatic word signal conversion significantly reduces the unwanted effects of inherent conducted noise commonly found within other types of rotary torque transducers.
Any computer system or electronic equipment with 2.4 GHz Bluetooth connectivity can wirelessly receive transmission data from the BT400 Series rotary torque transducer. This rotary torque measurement system can also transmit data to the remote Bluetooth Base Station that is included with the device. The torque sensor’s Bluetooth Base Station provides three analog outputs and a USB port for connection to any desktop or laptop. The Bluetooth radio operates in the unlicensed 2.4 GHz ISM band and employs a frequency hopping transceiver to combat interference and fading from other adjacent devices. An optional zero-velocity speed sensor is also available. For a detailed list of available torque sensor model variations and customization options, please consult the SensorData Technologies Inc. The company’s comprehensive research and development team of engineers manufactures standard and custom rotary torque transducers in-house at their Shelby Township, Michigan facility.