Torque transducers also measure speed

The T40B and T40FM torque transducers by HBM are able to measure torque and speed at the same time in harsh conditions.

08/01/2013


The T40B and T40FM torque transducers by HBM are able to measure torque and speed at the same time in harsh conditions. Courtesy: HBMHBM's T40B and T40FM torque transducers include an integrated speed measurement system and are specifically designed to work in harsh environments such as those that contain humidity, condensation, dust, oil and grease. The T40B and T40FM takes measurements based on the contactless sensing of an anisotropic magnetoresistive (AMR) sensor. The transducer integrates both the magnetic technology and the speed measurement sensor, which saves space and makes installation easier.

The T40's optional speed measurement sensor lets the device measure both torque and speed (rpm) at the same time. The T40 torque transducer measures speed with a 1024 pulse output, which provides users a far higher resolution than traditional optical systems.

In addition, because the radial or axial distance between the sensor and the magnetic ring is only 2.5-mm, the rotational speed measuring system has a high tolerance of application-related vibrations.

An optional reference pulse signal is generated by a separate sensor that senses the corresponding magnetic field in the axial direction. The system can thus provide the signals to integrate the rotational speed and the angle of rotation in the control loop of downstream equipment such as a data acquisition system (DAQ).

Other features of the T40B and T40FM include:

  • Torque measuring ranges of up to 80,000 Newton-meters
  • Low measurement uncertainty
  • Good temperature stability
  • Up to 0.03% of full scale linearity and hysteresis combined
  • Standard response times of 1000, 3000, 6000 and 10,000 Hz options

HBM, Inc.

www.hbm.com 

- See more Control Engineering discrete manufacturing products.



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