| 摘要 |
A measuring device is disclosed which contains a sensor fastened to sensor holding elements (4, 5, 6, 7, 8) and suspended so as to be displaceable in relation to a frame (1) in three orthogonal directions (x, y, z). For each direction of displacement, two parallel moving bridges (11 and 12, 20 and 21, 28 and 24) are provided which are hinged on rigid connecting elements (13, 14, 22, 25). The device permits the return of the sensor to its reference position in the first two directions of displacement (x, y) by gravity or by centering elements provided for that purpose.
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