Validation of Fiber Optic-Based Fabry–Perot Interferometer for Simultaneous Heart Rate and Pulse Pressure Measurements

Samartkit, Piyawat; Pullteap, Saroj; Seat, Han Cheng

doi:10.1109/jsen.2020.3041782

Cited by 12 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with medical digital sphygmomanometers, the average error of systolic and diastolic blood pressure and HR measured by the FFPI sensor is less than 2%. P. Samartkit et al investigated an FFPI-based sensor for the simultaneous measurement of HR and pulse pressure [22]. The output is demodulated by fringe counting, and HR and pulse pressure information are obtained simultaneously through fringe pattern analysis and Kirchhoff-Love's plate theory, respectively.…”

Section: Optical Fiber Fabry-perot Interferometersmentioning

confidence: 99%

“…The FOS for heart monitoring can be placed under a mat [12,13,35,36] or a mattress [14,[18][19][20]38,39]. Some researchers have also made wearable sensors that can be attached to the body [37] or worn on the wrist [21][22][23]. Sensors used for body temperature monitoring need to be in direct contact with the skin, such as on an arm, in order to measure accurate results [4,5].…”

Section: Application Of Vital Signs Monitoringmentioning

confidence: 99%

“…Due to the high cost of the FBG sensors and the limited sensitivity of the intensity-based sensors, researchers chose the interferometric FOS for vital signs monitoring. Researchers have dedicated much time and effort to the design of sensor structures [12][13][14][15][16][17][18][19][20][21][22][23], demodulation methods [12,[24][25][26][27][28][29][30][31][32][33][34][35][36] and the application of vital signs monitoring [12][13][14]16,[18][19][20][21][22][23][35][36][37][38][39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

et al. 2022

View full text Add to dashboard Cite

Due to the improvement of living standards, people’s attention to health has gradually increased. More and more people are willing to spend money and time on health management. This article reviews work on the vital signs monitoring system based on fiber optic interferometers, including the design of sensor structures, signal demodulation methods and data analysis. After a large number of trials, the system can achieve long-term stable heart rate (HR), respiration rate (RR) and body temperature monitoring, and the collected data can be used for health analysis. Due to the high sensitivity, low cost, and light weight of the interferometric fiber optic sensor, it can be integrated under a mattress or a cushion, which is very suitable for daily use. The system has great application prospects in the field of healthcare.

show abstract

Section: Optical Fiber Fabry-perot Interferometersmentioning

confidence: 99%

Section: Application Of Vital Signs Monitoringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Despite the capacity of the reported FBG respiratory sensors for stability and easy to implement, the cross sensitivity restricts its clinical application. The optical fiber interferometric respiratory sensors have been extensively reported due to flexible structure and compatibility, such as Fabry-Pérot interferometer (FPI) [ 7 , 8 ] Michelson interferometer (MI) [ 9 , 10 ] and Mach-Zehnder interferometer (MZI) [ 11 – 13 ]. Among them, FPI based respiratory sensor is small in size while requires restricted controlling in production process.…”

Section: Introductionmentioning

confidence: 99%

Optical fiber sensor for wearable and accurate human respiratory monitoring

Shao,

Yuan,

Wang

et al. 2024

Biomed. Opt. Express

View full text Add to dashboard Cite

Accurate respiratory monitoring is of great significance in assessing and analyzing physical health, and preventing respiratory diseases. The recently emerged wearable respiratory sensors are confronted with the challenges such as complex fabrication processes, limited accuracy, and stringent wearing requirements. An optical fiber sensor for accurate human respiratory monitoring is proposed and experimentally verified. The sensor head is composed of a piece of seven core fiber sandwiched between two single-mode fibers by two fiber bitapers, which is embedded in a textile sheet and freely worn on the upper body. An efficient signal demodulation system is set up to acquire the respiratory signal, while Fourier transform (FFT) and short-time Fourier transform (STFT) methods are used to analyze the measured signal. Six volunteers are invited to perform the respiratory experiment, and the experimental results demonstrate that the sensor can accurately detect and distinguish respiratory signals under different humans, different states (normal, slow, fast), different body parts (abdomen, chest, back), different postures (standing, sitting, lying), and irregular respiration. The Pearson correlation coefficient of the sensor is higher than 0.9, which is consistent with commercial respiratory sensor. Meanwhile, the instability of the sensor is 0.003 Hz for the same volunteer in 6 months. The sensor has the advantages of high sensitivity, good stability and wearing comfort, showing good potential in healthcare applications.

show abstract

“…The most direct and accurate ways to measure the PW signal and the pulse wave velocity (PWV) is the use of pressure catheters, which, however, is invasive and therefore can not be widespread. Measurement of PW and carotid-femoral PWV is utilized in various commercial devices [22] and is widely investigated in scientific literature using novel sensors, including fiber optic ones [23][24][25][26][27][28][29]; however, most of these sensors are based on interference effects, thus requiring complex and expensive interrogation hardware.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Fiber-Optic Sensing System with Smartphone Interrogation for Pulse Wave Monitoring

Markvart,

Petrov,

Tataurtshikov

et al. 2023

Photonics

View full text Add to dashboard Cite

Pulse wave measurement is a highly prominent technique used in biomedical diagnostics. The development of novel cost-effective pulse wave sensors will pave the way to more advanced healthcare technologies. This work reports on a pulse wave optical fiber sensor interrogated by a smartphone. The sensor performance was tested in terms of signal to noise ratio, repeatability of demodulated signal and suitability of demodulated signals for the extraction of information about direct and reflected waves. The analysis showed that the observed fluctuations of signal parameters are caused by variability of the state of the cardiovascular system and not by the system noise.

show abstract

Validation of Fiber Optic-Based Fabry–Perot Interferometer for Simultaneous Heart Rate and Pulse Pressure Measurements

Cited by 12 publications

References 22 publications

Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

Optical fiber sensor for wearable and accurate human respiratory monitoring

Low-Cost Fiber-Optic Sensing System with Smartphone Interrogation for Pulse Wave Monitoring

Contact Info

Product

Resources

About