NDLI: A reluctance-Hall Effect based linear digital angle sensor

Content Provider	IEEE Xplore Digital Library
Author	Anoop, C.S. George, B.
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India (Anoop, C.S.; George, B.)
Abstract	A new angle sensor based on a combination of a reluctance technique and Hall-Effect principle is presented in this paper. The proposed sensor provides a linear, digital output proportional to the angle being sensed. The sensor consists of two identical ring shaped sheets, in parallel, and a permanent magnet, placed between the rings. This unit rotates in unison with the target. Two fixed Hall-Effect sensor ICs, which are 180° apart, are kept in the air gap between the rings. An analysis shows that the flux density seen by these fixed Hall-Effect ICs vary as a third order polynomial function of the angle being sensed. A new signal conditioning method that provides a linear digital output from the proposed sensor is presented. A prototype angle sensor and signal conditioning unit have been built and tested. Output of the prototype unit was linear across 0 - 110° and worst-case error was less than 1.2%. The proposed sensor is suitable for automotive and industrial applications, especially where center of the target is not easily accessible to employ the conventional magnetic sensors directly.
Sponsorship	IEEE Instrum. Meas. Soc.
Starting Page	1362
Ending Page	1366
File Size	1537701
Page Count	5
File Format	PDF
ISBN	9781467346214
ISSN	10915281
e-ISBN	9781467346238
DOI	10.1109/I2MTC.2013.6555636
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automotive engineering Prototypes Magnetic flux Sensors Polynomials Hall effect Permanent magnets brake wear sensor Angle sensor Hall Effect Reluctance linearization
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in