Terms and expressions for specifying torque transducers

This survey includes the principal terms and definitions required for expertly selecting and specifying a torque transducer.

This document includes both a clear explanation and illustrative, practical examples for many terms. If specific terms can be interpreted in several ways, you get details about their concrete meaning in the context of HBM torque transducers.

The terms explained in the PDF document comprise two groups of topics:

• Technical characteristics of the torque measurement system
• Field of application and maximum loads

 

Metrological properties of the torque measurement system

• Accuracy class
• Sensitivity C
• Nominal sensitivity C_nom
• Sensitivity tolerance d_C
• Temperature effect on the sensitivity TK_C
• Temperature effect on the zero signal TK₀
• Linearity deviation d_lin
• Relative reversibility error d_hy
• Linearity deviation including hysteresis d_lh
• Relative standard deviation of repeatability

Ambient conditions and load limits

• Nominal rotation speed
• Nominal torque M_nom
• Maximum service torque
• Limit torque
• Breaking torque
• Permission oscillation bandwith
• Axial limit force
• Lateral limit force
• Bending limit moment
• Reference temperature
• Nominal temperature range
• Service temperature range
• Storage temperature range

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 Terms and expressions for specifying torque transducers (623 kB)