ANOTHER APPROACH ANALYZING THE CROSSTALK MATRIX FOR A PRECISE FORCE-TORQUE TRANSDUCER

• Abstract:

  A new multi-component facility for force and torque, which can simultaneously realize precise axial force (F_z) and torsional moment (torque, M_z), is being developed in PTB. Moreover, precise two-axis measuring devices (force-torque transducers) as transfer standards must be also developed for the establishment of the measurement traceability of screw testing machines. Authors have calibrated a new-developed force-torque transducer in each direction of force and torque, separately. The crosstalk matrixes have been obtained by ordinal way, where the normal square-inverse matrix (2 by 2) was used. In this paper, authors tried to obtain the crosstalk matrix by means of another approach, pseudo-inverse matrix, where the data was used as many as possible (2 by 18 or 2 by 26), and the useful crosstalk matrix could be determined in one value.
• Keywords:

  multi-component measurement, force, torque, screw testing machine, pseudo-inverse matrix
• Download:

  IMEKO-WC-2015-TC3-068.pdf
• DOI:

  _unreg_wc-2015.068

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