High-precision torque calibration with a reference transducer

HBM: The importance of accurate torque measurement in test bench applications, for example, keeps increasing.

This means a corresponding increase in the significance of calibration for the torque transducers used in these test benches. An addition to the proven TB2 torque reference transducer family of products now makes it possible to obtain accurate, traceable measurements much more quickly, as measurement is direct, unlike the familiar lever-arm calibration, where weights have to be put on and taken off by hand.

The type TB2 torque reference transducer from the measurement specialists HBM allows traceability to the national standards, and therefore totally safe and reliable calibration of the torque measurand. It can now also come with 100 Nm and 200 Nm measuring ranges.

The reference transducer is suitable for non-rotational use in the laboratory, or in an industrial environment. Also available as an option is an IP67 version, which can then also be used in a harsh industrial environment. TB2 transducers are already typically achieving best class 0.5, as per DIN 51309 or EA-10/14, for the minimum torque values of the measuring range, starting from 2%. The standard for this class usually only requires a range of 20 to 100%.

The strain gages (SG) installed in the TB2 allow all amplifiers to be used that support strain gage full bridges. This includes, for instance, the ML38B precision amplifier module for the MGCplus system from HBM.

The new espressoDAQ modules are ideally suited for applications where larger measurement systems would be too complicated and expensive.