Division 3.4.1.2

The following system requirements shall be met by a single torque meter by calibration:

1. i..

   Non linearity: < ± 6 Nm

2. ii..

   Repeatability: < ± 6 Nm

3. iii..

   Crosstalk: < ± 1 % FSO (only applicable for rim torque meters)

4. iv..

   Measurement rate: ≥ 20 Hz

where:

• ‘Non linearity’ means the maximum deviation between ideal and actual output signal characteristics in relation to the measurand in a specific measuring range.

• ‘Repeatability’ means closeness of the agreement between the results of successive measurements of the same measurand carried out under the same conditions of measurement.

• ‘Crosstalk’ means signal at the main output of a sensor (M_y), produced by a measurand (F_z) acting on the sensor, which is different from the measurand assigned to this output. Coordinate system assignment is defined according to ISO 4130.

• ‘FSO’ means full scale output of calibrated range.

The recorded torque data shall be corrected for the instrument error determined by the supplier.