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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Anoop, C.S. George, B. |
| Copyright Year | 2012 |
| Description | Author affiliation: Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India (Anoop, C.S.; George, B.) |
| Abstract | A new, simple and efficient electronic scheme suitable for magneto-resistive angle sensors with 0–360° range is presented in this paper. Most of the existing magneto-resistive angle sensors have a sine/cosine relationship between the output and sensing angle but a linear characteristic is highly useful. The proposed Signal Conditioning (SC) method accepts and processes output signal from the sensor that is sine/cosine in-nature and provides an output directly proportional to the sensing angle. Accuracy of the final output depends mainly on a dc reference voltage and a reference sinusoidal signal. A prototype of the proposed SC circuit has been built and tested to verify the practicality of the scheme. Output of the prototype circuit was linear across 0 to 360° and worst-case error was less than 0.08%. An angle sensor assembly using a magneto-resistive sensing element has been built for further tests. This unit provides two output signals. The SC circuit is an optimized scheme for best accuracy when operating with these signals. The sensor unit has been interfaced with the SC circuit and tested. As expected, the output was found to be linear for the full-circle range. |
| Starting Page | 2083 |
| Ending Page | 2087 |
| File Size | 841378 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781457717734 |
| ISSN | 10915281 |
| e-ISBN | 9781457717727 |
| DOI | 10.1109/I2MTC.2012.6229511 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-05-13 |
| Publisher Place | Austria |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic sensors Sensor phenomena and characterization Prototypes Switches Tunneling magnetoresistance Magnetic tunneling Precision measurement Angle Transducer Giant Magneto Resistance Tunneling Magneto Resistance Hall Effect |
| Content Type | Text |
| Resource Type | Article |
| Subject | Instrumentation Electrical and Electronic Engineering |
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