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Rotation
Speed Sensors
Rotation Speed Sensors News Last Up-date: 04/01/20 17:04:46 | |
Rotary Position Sensor for High Speeds - The AS5132 magnetic rotary position sensor IC from ams is designed for high rotation speeds. With a propagation delay of less than 22µs and advanced pre-commutation, the device is designed to give angle measurement even in motors rotating at speeds up to 80,000rpm. Angle measurements are accurate to within ±3° (maximum). “BLDC motor manufacturers can achieve high and constant levels of torque even in high-speed applications over the whole dynamic range,” said the supplier. The chip combines Hall elements, an analogue front end and digital signal processing. It can dynamically compensate for angle errors attributable to propagation delay, which are most noticeable at high speeds ... |
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Articles, Papers and References | Sponsored Links: | |
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Shukuji Asakura, Akimitsu Ishihara, Frequency Output Type Motion Sensor Using Self-excited Potential Oscillation, Sensors and Actuators, A 90, 2001, pp.111-117. Abstract: A new method for measuring the velocity of a moving fluid around an electrode was proposed. The method measured the frequency of a self-excited oscillation of an iron electrode immersed in H3PO4-H2O2 solutions. The flow in the neighborhood of the electrode, on which transport processes depended, was presumed to change the oscillation frequency. The frequency is proportional to the concentration of the hydrogen peroxide, [H2O2], at the phosphoric acid concentration of 0.5 mol/dm3. The moving velocity of the electrode against the static solution could be determinated. In the same sense, the rotation speed of the electrode and the electrode tilt, which affected natural convection around an electrode, could be measured. |
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Akimitsu
Ishihara and Shukuji Asakura, A Possible Motion Sensor with
Frequency Output, In Proceedings of
the 18th Chemical Sensor Symposium, April 3-5, 1994, Tohoku University,
Japan, Vol.10, Supplement A. |
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Patents on Sensors and Rotation Speed Sensor Instrumentation | |
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K.-M.H. Lenssen, D.J. Adelerhof, H.J. Gassen, A.E.T. Kuiper, G.H.J. Somers and J.B.A. van Zon, Robust Giant Magnetoresistance Sensors, In Proceedings of the 13th European Conference on Solid-State Transducers (EUROSENSORS XIII), The Hague, The Netherlands, 12-15 September, 1999, pp.589-596. |
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P. Rako, Automotive Hall-effect rotary-position sensor uses novel flux-concentrator technology, EDN, 10/18/2007 | |
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Kirianaki N.V., Yurish S.Y., High Precision, Wide Speed Range Rotation Sensing with UFDC-1, Sensors & Transducers Magazine, Vol. 59, Issue 9, September 2005, pp. 426-431 | |
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Andrew Monnin, A New Chapter in Encoder-Based Motion Control, Sensors Magazine, November 1998 | |
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Mike Kroening, Jacob Hite, A Velocity Sensor for Rotating Shafts, Sensors Magazine, September 1998 | |
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Wiegand Effect Sensors: Theory and Applications, Sensors Magazine, May 1998 | |
Asad M. Madni, Robert D. Geddes, A Micromachined Quartz Angular Rate Sensor for Automotive and Advanced Inertial Applications, Sensors Magazine, August 1999 | ||
John Reschovsky, Digital Rotor Telemetry, Sensors Magazine, September 1999 | ||
Asad M. Madni, Roger F. Wells, An Advanced Steering Wheel Sensor, Sensors Magazine, February 2000 | ||
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Daniel Dwyer, A Self-Calibrating Miniature Hall Effect Solution to Gear Tooth Speed Sensing, Sensors Magazine, September 2001 | |
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J. Rull, A. Sudrià, J. Bergas, S. Galceran, Programmable logic design for an encoder-based velocity sensor in a DSP-controlled motion system, in Proceedings of 7th International Conference on Emerging Technologies and Factory Automation, 1999, pp. 1243-1247 | |
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Franz-Josef Hoffmann, A New Dimension in Encoder Technology, Sensors Magazine, May 2002 | |
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Josef Janisch, Understanding Integrated Hall Effect Rotary Encoders, Sensors Magazine, Vol.23, No.11, November 2006, pp.20-23 | |
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Hank Bierhardth, Craftsman's Electronic Rotary Torque Sensor System: A New Twist on Torque Measurements, 4Wheel & Off Road, March 2007 | |
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Winston Sun, Tao Mei, Antony W.-T. Ho, and Wen J. Li , A MEMS High-speed Rotation Measurement System with MCNC Fabricated Motion and Reference Sensors Using Wireless Transmission, in Proceedings of IEEE International Conference On Multisensor Fusion and Integration for Intelligent Systems (MFI 99’), Taipei, Taiwan, August 15-18, 1999 |
Rotation-Speed Sensor Instrumentation
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