{"title":"基于隧道磁电阻的角度传感器","authors":"C. Anoop, B. George, Kumar V Jagadeesh","doi":"10.1109/ICSENST.2011.6137015","DOIUrl":null,"url":null,"abstract":"An angle transducer that provides a linear output for full-circle range (0–360°) of operation is presented in this paper. The sensor part of the transducer is made of two pairs of Tunneling Magneto-Resistors (TMR) and the signal conditioning part consists of a couple of sinusoids having same frequency but differing in phase by 90° and a phase detector. The novel signal conditioning circuit proposed here operates on the sine/cosine outputs of the TMRs and provides a voltage that is linear to the angle being sensed. Simulation studies conducted using SPICE demonstrate the efficacy of the transducer in providing a linear output across the entire full-scale range with a worst case error less than ± 0.15 %. Results obtained from a prototype unit built and tested establish the practicality of the proposed transducer. The worst case error of the prototype was < ± 1 %.","PeriodicalId":202062,"journal":{"name":"2011 Fifth International Conference on Sensing Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"Tunneling magneto-resistor based angle transducer\",\"authors\":\"C. Anoop, B. George, Kumar V Jagadeesh\",\"doi\":\"10.1109/ICSENST.2011.6137015\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An angle transducer that provides a linear output for full-circle range (0–360°) of operation is presented in this paper. The sensor part of the transducer is made of two pairs of Tunneling Magneto-Resistors (TMR) and the signal conditioning part consists of a couple of sinusoids having same frequency but differing in phase by 90° and a phase detector. The novel signal conditioning circuit proposed here operates on the sine/cosine outputs of the TMRs and provides a voltage that is linear to the angle being sensed. Simulation studies conducted using SPICE demonstrate the efficacy of the transducer in providing a linear output across the entire full-scale range with a worst case error less than ± 0.15 %. Results obtained from a prototype unit built and tested establish the practicality of the proposed transducer. The worst case error of the prototype was < ± 1 %.\",\"PeriodicalId\":202062,\"journal\":{\"name\":\"2011 Fifth International Conference on Sensing Technology\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 Fifth International Conference on Sensing Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICSENST.2011.6137015\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 Fifth International Conference on Sensing Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSENST.2011.6137015","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An angle transducer that provides a linear output for full-circle range (0–360°) of operation is presented in this paper. The sensor part of the transducer is made of two pairs of Tunneling Magneto-Resistors (TMR) and the signal conditioning part consists of a couple of sinusoids having same frequency but differing in phase by 90° and a phase detector. The novel signal conditioning circuit proposed here operates on the sine/cosine outputs of the TMRs and provides a voltage that is linear to the angle being sensed. Simulation studies conducted using SPICE demonstrate the efficacy of the transducer in providing a linear output across the entire full-scale range with a worst case error less than ± 0.15 %. Results obtained from a prototype unit built and tested establish the practicality of the proposed transducer. The worst case error of the prototype was < ± 1 %.