Direct Linear Drive, Drive Device and Actuating Device
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United States of America Patent
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Issued Date -
Apr 14, 2011
app pub date -
Jun 13, 2008
filing date -
Jun 13, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a direct linear drive having a stator (12; 112) and a runner (14; 114), to at least one of which electric energy can be applied in order to initiate a translational movement on a coupling element (36; 136); and having a position sensing device (16; 116) for determining the position of the runner (14; 114) in relation to the stator (12; 112); it further relates to a drive device with a direct linear drive of this type and to an actuating device which is equipped with a drive device of this type. According to the invention, the position sensing device (16; 116) is designed as a linear position sensor with a magnetostrictive measuring element (54; 154) and an associated measurement transducer (58; 158).
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