| 摘要 |
<p>Angle transducer unit of the multiturn measuring type for absolute measurement of the angular position of a rotatable shaft. A first transducer (10) of the absolute angular measurement type with a drive shaft (3) is non-rotatably mounted on the rotatable shaft. A second angle transducer (11) of the absolute angular measurement type has a driven shaft (4). There are gear wheels (1, 2) mounted on the drive and driven shafts, these gear wheels being mutually in mesh to form a gear for up or down gearing of the rotational rate of the drive shaft. The two angle transducers, e.g. resolvers, are intended for being conventionally connected to an apparatus for measuring the differential angular position of the shafts. Novel to the angle transducer unit is that the gear wheels comprise an internally toothed gear wheel (2) and an externally toothed gear wheel (1). The latter rolls on the internally toothed gear wheel (2) and has a number of teeth which is only some few teeth, preferably only one tooth less than the number of teeth of the internally toothed gear wheel, and is mounted on one (3 or 4) of said shafts. The internally toothed gear wheel (2) is mounted on the other shaft. Excentric means (14a, 14b) in the form of cylindrical housing parts are disposed for mounting the shafts mutually excentric (e).</p> |
