Holding arrangement having an apparatus for balancing a load...

Electricity: motive power systems – Positional servo systems

Reexamination Certificate

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Details

C318S568110, C901S009000, C901S048000, C248S280110, C700S279000, C700S261000, C359S382000, C359S384000

Reexamination Certificate

active

07109678

ABSTRACT:
In a holding arrangement (101) for a medical-optical instrument (103), an electric motor is provided in a rotational joint (111, 119) to compensate a load torque occurring in this rotational joint. This electric motor is supplied with current in correspondence to a detected position of the rotational joint (111, 119). A current control curve required for this purpose is stored in a memory. This current control curve can be determined in that the rotational joints are deflected with the electric motor into predetermined positions and the current demand needed therefor is detected.

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patent: 2002/0108874 (2002-08-01), Metelski

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