DOIONLINE 
DOIONLINE Publish In |
International Journal of Mechanical and Production Engineering (IJMPE)-IJMPE |
 Journal Home Volume Issue |
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Issue |
Volume-4,Issue-4 ( Apr, 2016 ) | |||||||||
Paper Title |
Quantitative Detection Of Calcium Using Near-Infrared Spectroscopy For Apply In Bone Densitometry | |||||||||
Author Name |
Siridech Chaichanakol, Shigeo M. Tanaka, Anak Khantachawana | |||||||||
Affilition |
Department of Mechanical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Thailand Kanazawa University, Ishikawa (Japan) Department of Mechanical Engineering / Biological Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Thailand | |||||||||
Pages |
90-92 | |||||||||
Abstract |
At present, the conventional method for measuring bone density is X-raytechnique. However, the equipment is expensive and X-ray is harmful for health since radiation can cause cell mutation which can lead to cancer. The present research aims to study the possibility of using near-infrared light for measuring bone density. Bone densitometry was designed by using Light-Emitting Diode (LED) with wavelength of 1720 nm as an emitter and the photo diode (PD) as a receiver. Calcium blocks were prepared in order to mimic the bone with various thicknesses and densities. As a result, it is clear that output voltage increases with increasing either thickness or density of calcium. This means light absorbance ability increases with increasing calcium thickness and density.The correlation coefficient of R>0.99 (n=30) confirms that optical spectrum at 1720nm can accurately measure bone density and thickness and suitable for further apply to bone densitometry. Key Words- Bone densitometry, Calcium hydroxyapatite, Near-infrared, Osteoporosis | |||||||||
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