Oscillation controlled magnetic sensing by uing spinelectronics device

Hideo Kaiju, Kazuo Shiikj

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Oscillation controlled magnetic sensing by using magneto-resistance devices is proposed. An InSb magnetic sensing device was used in the feedback loop of a Hartley oscillator. The oscillation starts when the resistance of the InSb magnetic sensing device changes in the external magnetic field as the oscillation condition is satisfied. Output response and error rate in our magnetic sensing for the detection of oscillation were investigated. As a result a high output response and low noise were obtained. The resistance change dependence of the output voltage is in good agreement with calculation results obtained from F-matrix method. Noise originated from the output in the sensing circuit can be explained from the thermal noise and shot noise of total output impedance. Based on these analyses, S/N ratio of the oscillation controlled magnetic sensing is found to be higher than those of conventional methods. Furthermore, error rate less than 10-7 is found to be obtained, and it can be explained from calculated results of normal distribution taking the crest value of total noise, summarized thermal noise and shot noise, and threshold voltage into account. Therefore, this magnetic sensing method has potential application in highly sensitive magnetic sensors.

Original languageEnglish
Title of host publication3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005, Proceedings
PublisherInternational Institute of Informatics and Systemics, IIIS
Pages31-34
Number of pages4
ISBN (Print)9806560477, 9789806560475
Publication statusPublished - 2005 Jan 1
Externally publishedYes
Event3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005 - Austin, TX, United States
Duration: 2005 Jul 242005 Jul 27

Publication series

Name3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005, Proceedings
Volume2

Conference

Conference3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005
CountryUnited States
CityAustin, TX
Period05/7/2405/7/27

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Keywords

  • Feedback Loop
  • Hartley Oscillation
  • Magnetic Sensing
  • Magnetoresisitance Device
  • Spinelectronics

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Control and Systems Engineering

Cite this

Kaiju, H., & Shiikj, K. (2005). Oscillation controlled magnetic sensing by uing spinelectronics device. In 3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005, Proceedings (pp. 31-34). (3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005, Proceedings; Vol. 2). International Institute of Informatics and Systemics, IIIS.