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Effect of inductive coil shape on sensing performance of linear displacement sensor using thin inductive coil and
Norhisam Misron1, Loo Qian Ying, Raja Nor Firdaus
1Electrical and Electronic Engineering Department, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia. norhisam@eng.upm.edu.my
Sensors (Basel, Switzerland)
|February 21, 2012
Summary
Investigating inductive coil shapes for linear displacement sensors reveals that shape significantly impacts performance. Circle coils offer high sensitivity but low linearity, while square coils provide a balance of medium sensitivity and better linearity.
Area of Science:
- Electrical Engineering
- Sensor Technology
- Materials Science
Background:
- Linear displacement sensors are crucial for precise motion control.
- Inductive sensors offer non-contact position detection suitable for various applications.
- Optimizing inductive coil design is key to enhancing sensor performance.
Purpose of the Study:
- To evaluate the influence of different inductive coil shapes on linear displacement sensor performance.
- To identify optimal inductive coil patterns for improved sensing capabilities.
- To analyze the trade-offs between sensitivity and linearity for various coil geometries.
Main Methods:
- Fabrication of thin-type inductive coils with various shapes (meander, triangular meander, square, circle).
- Integration of coils with a thin pattern guide for a compact linear displacement sensor.
- Measurement of inductance values at different positions to assess sensor response.
- Evaluation of sensor sensitivity and linearity based on inductance measurements.
Main Results:
- Different inductive coil shapes exhibit distinct sensing characteristics.
- Circle-shaped coils demonstrated high sensitivity but compromised linearity.
- Square-shaped coils presented a moderate sensitivity with improved linearity compared to circular coils.
Conclusions:
- Inductive coil geometry is a critical factor in linear displacement sensor design.
- The choice of coil shape involves a trade-off between sensitivity and linearity.
- Square and circular coil designs offer specific advantages for different application requirements.
Keywords:
circle shapeinductanceinductive coillinear displacement sensorlinearitymeander shapepattern guidesensitivitysquare shapetriangular type meander shapeMore Related Videos
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