Magtrol, Inc.

With its compact, bearingless, maintenance-free design, the new tf torque flange sensor from magtrol brings many appealing advantages to torque measurement applications. The tfs high torsional rigidity supports direct mounting on the machine shaft or flange, avoiding the use of couplings on one side. This allows easy integration into a test system, shortens the overall length of the test bench and reduces costs. based on strain-gauge technology, the tf sensors precise telemetry system enables highly accurate signal transmission. A signal amplifier mounted in the measuring flange amplifies the measuring signal, modulates it to high frequency and transmits it inductively (via the hf transmitter) to the receiver. In the receiver, the digitized torque signal is transformed into an analog output signal of 10 vdc. Rotational speed can be measured and converted to a ttl output signal with the optional speed pickup. the contactless design of the torque flange sensor permits a gap of up to 5 mm (typically 1 to 3 mm) between the rotor antenna and hf transmitter, which makes the signal acquisition insensitive to any axial or radial misalignment. Another advantage of this torque measurement system is its insusceptibility to signal interferencedue to the fact that, unlike other designs, the antenna does not need to be looped around the sensor. Additionally, a protective cover can be mounted close to the sensor with no effect on the signal. features complete torque measuring system consisting of: measuring flange with signal amplifier hf transmitter receiver/conditioner 4 m cable contactless signal transmission: via telemetry torque range: 50 nm to 150,000 nm high accuracy: 0. 1% to 0. 25% overload capacity: up to 200% overload limit: 400% compact, easy-to-mount design high torsional stiffness bearingless: maintenance and wear-free excellent noise immunity and shock resistance protection class: ip 42 (ip 54 optional) 2