| 摘要 |
A device for measuring the rotational imbalance of a specimen, having a spindle unit with a spindle, which is embodied to hold the specimen and to allow it to rotate at a testing speed, a holder suspension by means of which the spindle unit is anchored to the machine base in pendulum fashion such that the imbalance forces occurring during the measurement operation are able to move the spindle unit back and forth in a predetermined measuring direction M, and a sensor arrangement that detects at least one imbalance parameter occurring in the measuring direction M during rotation of the spindle, wherein the spindle unit is supported by means of at least one auxiliary bearing that is only able to transmit forces in the direction of a normal N to the measuring direction M.
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