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AuthorBenammar, Mohieddine
AuthorBagher, Mohamed
AuthorAl Kaisi, Mohammed
Available date2023-04-05T08:36:44Z
Publication Date2009
Publication Name2009 16th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2009
ResourceScopus
URIhttp://dx.doi.org/10.1109/ICECS.2009.5410864
URIhttp://hdl.handle.net/10576/41688
AbstractResolvers and other types of sinusoidal encoders provide electrical signals whose amplitudes are related to the sine and cosine of the mechanical shaft angle ¿ over the full 360° range. The tangent/cotangent converter, used with these transducers to extract ¿ from these signals, is based on the determination of a ratio between the absolute values of the sine and cosine signals. This produces highly non-linear output. In conventional converters, ¿ is determined from the output using a look up table or a processor. In this work, an analog shaping network is described for the linearization of this output and hence for linear determination of ¿. The optimal break points positions of the shaping network are determined experimentally and automatically using a LabVIEW-based setup that seeks minimization of the overall absolute error of the converter. The absolute error was 0.14° over the full 360° range of input angle. The principle of operation, full circuit details, computer simulation and practical results are given.
Languageen
PublisherIEEE
SubjectAbsolute error
Absolute values
Break-points
Cosine signals
Electrical signal
LabViEW
Linearizers
Look up table
Mechanical shafts
Non-linear
Sinusoidal encoder
Mining
Ontology
Computer simulation
TitleNovel linearizer for tangent/cotangent converter
TypeConference Paper
Pagination575-578
dc.accessType Abstract Only


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