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Overview

Sliding the MLS sensors along a magnetic scale will produce a sine and a cosine output signal as a function of its position relative to a magnetic pole. In order to deliver satisfying results, this will be achieved as long as the air gap between sensor edge and magnetic scale surface does not exceed approximately half of the pole pitch. As the sensor principle is based on the anisotropic magneto resistance effect, the signal amplitudes are nearly independent on the magnetic field strength and therefore air gap variations do not have a strong effect on the measured accuracy. The sensor detects a magnetic gradient field and is thus almost insensitive to homogenous magnetic stray fields. Precise displacement values will be obtained by using a sine/cosine decoder device. The maximal obtainable precision depends on the accuracy of the magnetic scale and on the distance sensor – magnetic scale. Errors <1% of the pole pitch per meter are commonly achievable. MLS hybrids are available for pole pitches of 1, 2, 2.5 and 5mm.  

Benefits

  • Sin- / cos-output signals suitable for signal evaluation by standard ASIC’s
  • Allows very high precision measurements in harsh and dirty environments
  • High accuracy / low hysteresis
  • Insensitive to air gap fluctuations
  • Highly reliable due to contactless measurement principle
  • Low interference field sensitivity  

Features

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This information has been provided to your free of charge for your use but remains the sole property of TE Connectivity Corporation (''TE'') or SnapEDA,  Inc. or Ultra Librarian/EMA Design Automation, Inc. (collectively, "Company"). While Company has used reasonable efforts to ensure its accuracy, Company does not guarantee that it is error-free, not makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. Company expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.