Difference between revisions of "Projects:2015s1-28 Wireless Rotation Detector"

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(Background & Significance)
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*Intend to change – use Electromagnetic Wave instead
 
*Intend to change – use Electromagnetic Wave instead
 
[[File: Background_&_significance.PNG|thumb|300px|left|'''Fig. 1:''' Background & significance]]
 
[[File: Background_&_significance.PNG|thumb|300px|left|'''Fig. 1:''' Background & significance]]
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== Key Requirements ==
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*Metamaterial Absorber shall absorb at least 90% (-10db) power at 2.4GHz when it has same polarization with antenna.
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*Dual antennas shall work at 2.4GHz and the crosstalk between 2 antennas shall be less than -40dB.
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*Portable system shall be operational up to 50cm from the rotating object.
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*Portable system shall accurately measure the rotating object in both low and high speed.
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== Proposed Approaches ==
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*Method exploited - ‘Divide-And-Conquer’.
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*The entire project can be decomposed into several aspects.
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**Hardware (design required)
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*** Metamaterial Absorber
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*** Dual-Antennas

Revision as of 17:45, 17 August 2015

Supervisors

Honours students


Project objects

Scope

  • Design and construct a portable wireless device which can accurately measure the speed of rotating object.

Specific Aims

  • Design and produce a metamaterial absorber with resonate frequency of 2.4GHz.
  • Design and fabricate a planar dual-antenna which can transmit and receive signals with limited crosstalk.
  • Design a software system which can calculate the rotation speed.

Background & Significance

  • Rotation speed measurement devices widely used in industries.
  • Current popular rotation speed measurement devices, such as laser tachometer, use visible light.
  • Can not use if line of sight blocked.
  • Intend to change – use Electromagnetic Wave instead
Fig. 1: Background & significance

Key Requirements

  • Metamaterial Absorber shall absorb at least 90% (-10db) power at 2.4GHz when it has same polarization with antenna.
  • Dual antennas shall work at 2.4GHz and the crosstalk between 2 antennas shall be less than -40dB.
  • Portable system shall be operational up to 50cm from the rotating object.
  • Portable system shall accurately measure the rotating object in both low and high speed.

Proposed Approaches

  • Method exploited - ‘Divide-And-Conquer’.
  • The entire project can be decomposed into several aspects.
    • Hardware (design required)
      • Metamaterial Absorber
      • Dual-Antennas