Encoders close the loop in modern motion control
Article Abstract:
There is a wide range of modern applications for optical encoders. which are particularly used in measuring product performance. Rotary and linear encoders are the two most readily available commercial configurations of optical encoders. Of the two, rotary encoders are the more commonly used sensors. There are two types of rotary encoders, incremental and absolute. Their basic operation, the different types and the advantages of absolute over incremental encoders are presented. The selection of a particular rotary encoder is determined by the type of output required.
Publication Name: Quality Progress
Subject: Engineering and manufacturing industries
ISSN: 0033-524X
Year: 1992
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Continuous approximations in the study of hierarchies
Article Abstract:
Modelling hierarchies with continuous approximations is not advisable, as relative errors are significant and may even increase as the hierarchies expand. However, ignoring rounding operators and integer constraints in formulae derived from the discrete model of balanced hierarchies can be a valid approximation when hierarchies are of a suitable size due to the bounds on the relative errors of the approximations.
Publication Name: RAND Journal of Economics
Subject: Economics
ISSN: 0741-6261
Year: 1995
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How to enjoy an artichoke
Article Abstract:
Directions are presented for preparing and eating artichokes.
Publication Name: Woman's Day
Subject: Family and marriage
ISSN: 0043-7336
Year: 1992
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