Cost-effective T21WN torque transducer introduced by HBM


Test and measurement solutions provider HBM Test and Measurement (HBM) has introduced its new T21WN torque transducer, which is based on strain-gauge technology and uses contactless energy and measurement signal transmission to measure torque.

The torque transducer enables demanding static and dynamic measurements of torque, rotational speed, and angle of rotation to be performed on non-rotating as well as rotating components. It is ideal for laboratory, test shop and testing applications as well as for use in production and process monitoring and quality assurance.

Apart from the torque output signal of +/-10V at nominal (rated) torque, it also provides a standard frequency output signal of 10kHz +/- 5kHz. The T21WN torque transducer is available with nominal (rated) torques ranging between 0.1Nm and 200Nm.

The maximum permissible rotational speed of the torque measuring system is up to 20,000rpm, depending on the measurement range. An integrated rotational speed/angle of rotation measuring system with 360 pulses per revolution completes the transducer and can be used up to the specified maximum nominal (rated) rotational speed without restrictions.

The transducer is supplied with the 24V direct voltage common in test benches and is suitable for use in substantially more dynamic applications than the preceding T20WN model due to its measurement bandwidth of 1kHz and a broader range of functions.


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Sam joined the UKi Media & Events automotive team in 2017, having recently graduated from the University of Brighton with a degree in journalism. For the newest addition to the editorial team, stepping into the assistant editor position signalled the start of a career in the subject he studied. In addition to his work on UKi’s automotive titles, Sam also contributes to Stadia, writing content for the magazine and website.

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