Multifunctional Optical Sensor Module

Hirofumi Nogami, Ryo Inoue, Yuma Hayashida, Hideyuki Ando, Takahiro Ueno, Renshi Sawada

2018

Abstract

Photoplethysmography (PPG) is widely and commonly used, as it produces a wide range of information, such as stress level, heart rate interval, respiration rate, blood vessel hardness, etc. It is necessary to control the contact force between a PPG sensor and the measurement location (the skin surface), in order to obtain an accurate PPG signal. We propose new multifunctional sensor modules that can measure both pulse waves and contact force. The sensor module has a micro integrated displacement sensor chip with an optical source, photo diodes, and op-amp circuits, and a gum frame with a mirror. Some incident light penetrates into a finger, and the scattered light, which contains a biological signal (a pulse wave), is detected by one photodiode. The photodiode can also detect reflected light from a mirror, which is displaced by a contact force. In this paper, we fabricate a multifunctional sensor module and attempt to simultaneously measure the pulse wave and contact force.

Paper Citation

in Harvard Style

Nogami H., Inoue R., Hayashida Y., Ando H., Ueno T. and Sawada R. (2018). Multifunctional Optical Sensor Module. In Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2018) - Volume 1: BIODEVICES; ISBN 978-989-758-277-6, SciTePress, pages 71-76. DOI: 10.5220/0006596900710076

in Bibtex Style

@conference{biodevices18,
author={Hirofumi Nogami and Ryo Inoue and Yuma Hayashida and Hideyuki Ando and Takahiro Ueno and Renshi Sawada},
title={Multifunctional Optical Sensor Module},
booktitle={Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2018) - Volume 1: BIODEVICES},
year={2018},
pages={71-76},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006596900710076},
isbn={978-989-758-277-6},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2018) - Volume 1: BIODEVICES
TI - Multifunctional Optical Sensor Module
SN - 978-989-758-277-6
AU - Nogami H.
AU - Inoue R.
AU - Hayashida Y.
AU - Ando H.
AU - Ueno T.
AU - Sawada R.
PY - 2018
SP - 71
EP - 76
DO - 10.5220/0006596900710076
PB - SciTePress