Doubling Up!  

Oleh:

Chamberlain, Jeramé

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 83 no. 6 (Apr. 2011), page 56-58.
Topik: Motors; Accuracy; Motion Control; Feedback Control Systems

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44.64 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Most people think of parallel-drive systems as those found in Cartesian/gantry robots. But parallel-drive systems can also be viewed as two or more linear motors working in parallel from a single drive controller. This covers the Cartesian/gantry-style robots plus other major areas of motion control, such as high-precision and ultra-high-precision single-axis robots having resolution and position accuracy in the subnanometer to high-picometer range. The major issue with all parallel-drive systems is orthogonal alignment: the ability to keep the parallel axis square. The thing that makes it possible to connect linear-shaft motors in parallel is a highly responsive motor. The dynamic motion generated by any two identical linear-shaft motors is the same when given the same control signal. Putting an encoder in the center of mass and using parallel linear-shaft motors equally spaced from the center of the mass gives the desired feedback and force generation in mass center.

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