Publication: Study on Chest Expansion in Lateral Plane Using Accelerometers
4
0
Issued Date
2017
Resource Type
Language
eng
File Type
application/pdf
Access Rights
open access
Rights
ผลงานนี้เผยแพร่ภายใต้ สัญญาอนุญาตครีเอทีฟคอมมอนส์แบบ แสดงที่มา-ไม่ใช้เพื่อการค้า-ไม่ดัดแปลง 4.0 (CC BY-NC-ND 4.0)
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
International Journal of Advances in Science, Engineering and Technology(IJASEAT) , pp. 47-51, Volume-6,Issue-1,Special Issue - 1
Suggested Citation
A Kittidej, P Prapawadee, S Pranchalee Study on Chest Expansion in Lateral Plane Using Accelerometers. International Journal of Advances in Science, Engineering and Technology(IJASEAT) , pp. 47-51, Volume-6,Issue-1,Special Issue - 1. Retrieved from: https://hdl.handle.net/20.500.14740/11833
Author(s)
Organization
Abstract
The chest expansion measurement is a part of physical therapy to track the progress of rehabilitation for checking
the performance of lungs. The chest expansion mechanism in lateral plane moves like a bucket handle. It moves more than
one direction. This paper measures the chest expansion by using accelerometers in lateral plane. The MEMS accelerometer
measures acceleration in each axis and can use double integral to convert acceleration to displacement. The acceleration in
each axis is affected from the Earth gravity and then uses simple trigonometric equation to eliminate the Earth gravity from
the acceleration data. Taking deep breath measures chest expansion measuring, therefore the signal has low frequency. This
paper improve the accuracy by subtracting the signal with the average data to eliminate offsetting error and using low-pass
filter for canceling the noise at high frequency. The result shows the displacement error of acceleration and chest caliper.