Redundancy-enabled stabilisation of linear encoder performance: The biSLIDER

Linear encoders are widely used in industry particularly for machine tools. Their performance may suffer thermal and mechanical instability. This paper presents a technique to stabilise the performance over time by recovering to a reference state. It is based on the simultaneous readings of two head...

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Published inCIRP annals Vol. 67; no. 1; pp. 531 - 534
Main Authors Balsamo, Alessandro, Francese, Claudio, Ottone, Renato, Piccato, Aline
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2018
Subjects
Compensation
Encoder
Redundancy
Redundancy
Encoder
Compensation
Online AccessGet full text
ISSN0007-8506
DOI10.1016/j.cirp.2018.04.004

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Abstract Linear encoders are widely used in industry particularly for machine tools. Their performance may suffer thermal and mechanical instability. This paper presents a technique to stabilise the performance over time by recovering to a reference state. It is based on the simultaneous readings of two heads separated by an invariant spacer. It requires off-the-shelf components only and is widely applicable in industry. Experimental results in the field and in lab show excellent error recovery even in the presence of highly nonlinear errors.
AbstractList Linear encoders are widely used in industry particularly for machine tools. Their performance may suffer thermal and mechanical instability. This paper presents a technique to stabilise the performance over time by recovering to a reference state. It is based on the simultaneous readings of two heads separated by an invariant spacer. It requires off-the-shelf components only and is widely applicable in industry. Experimental results in the field and in lab show excellent error recovery even in the presence of highly nonlinear errors.
Author Piccato, Aline
Francese, Claudio
Ottone, Renato
Balsamo, Alessandro
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Cites_doi 10.1016/S0007-8506(07)62538-4
10.1364/OE.24.021378
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SubjectTerms Compensation
Encoder
Redundancy
Title Redundancy-enabled stabilisation of linear encoder performance: The biSLIDER
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