Maximal ratio combining for respiratory effort extraction from pressure sensor arrays

2011 ◽  
Author(s):  
M. Holtzman ◽  
R. Goubran ◽  
F. Knoefel
Keyword(s):  
Pressure Sensor ◽  
Sensor Arrays ◽  
Maximal Ratio Combining ◽  
Respiratory Effort

scholarly journals Three-Dimensional Arterial Pulse Signal Acquisition in Time Domain Using Flexible Pressure-Sensor Dense Arrays

Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 569
Author(s):  
Jianzhong Chen ◽  
Ke Sun ◽  
Rong Zheng ◽  
Yi Sun ◽  
Heng Yang ◽  
...  
Keyword(s):  
Radial Artery ◽  
Pressure Sensor ◽  
Pulse Width ◽  
Printed Circuit Boards ◽  
Color Doppler ◽  
Three Dimensional ◽  
Pressure Sensors ◽  
Sensor Arrays ◽  
Signal Acquisition ◽  
Dynamic Pulse

In this study, we developed a radial artery pulse acquisition system based on finger-worn dense pressure sensor arrays to enable three-dimensional pulse signals acquisition. The finger-worn dense pressure-sensor arrays were fabricated by packaging 18 ultra-small MEMS pressure sensors (0.4 mm × 0.4 mm × 0.2 mm each) with a pitch of 0.65 mm on flexible printed circuit boards. Pulse signals are measured and recorded simultaneously when traditional Chinese medicine practitioners wear the arrays on the fingers while palpating the radial pulse. Given that the pitches are much smaller than the diameter of the human radial artery, three-dimensional pulse envelope images can be measured with the system, as can the width and the dynamic width of the pulse signals. Furthermore, the array has an effective span of 11.6 mm—3–5 times the diameter of the radial artery—which enables easy and accurate positioning of the sensor array on the radial artery. This study also outlines proposed methods for measuring the pulse width and dynamic pulse width. The dynamic pulse widths of three volunteers were measured, and the dynamic pulse width measurements were consistent with those obtained by color Doppler ultrasound. The pulse wave velocity can also be measured with the system by measuring the pulse transit time between the pulse signals at the brachial and radial arteries using the finger-worn sensor arrays.

Recent progress in flexible pressure sensor arrays: from design to applications

2018 ◽  
Vol 6 (44) ◽  
pp. 11878-11892 ◽  
Author(s):  
Jing Li ◽  
Rongrong Bao ◽  
Juan Tao ◽  
Yiyao Peng ◽  
Caofeng Pan
Keyword(s):  
Pressure Sensor ◽  
Recent Progress ◽  
Sensor Arrays ◽  
Device Applications ◽  
Flexible Pressure Sensor

This review summarizes the progress in flexible pressure sensor arrays from their fundamental designs to device applications.

Polymer MEMS pressure sensor arrays for fish-like underwater sensing applications

2012 ◽  
Vol 7 (12) ◽  
pp. 1189-1192 ◽  
Author(s):  
A.G.P. Kottapalli ◽  
M. Asadnia ◽  
G. Barbastathis ◽  
M. Triantafyllou ◽  
J.M. Miao ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Sensor Arrays ◽  
Sensing Applications ◽  
Polymer Mems
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