Design of a Digital Breathing Rate Tester Circuit

2014 ◽  
Vol 556-562 ◽  
pp. 2161-2164
Author(s):  
Huang Li ◽  
Li Feng Lin
Keyword(s):  
Nand Gate ◽  
Breathing Rate ◽  
Pulse Counter ◽  
Amplifier Circuit ◽  
Counter Circuit

Digital breathing rate tester uses amplifier circuit, filter circuit, shaping circuit, and frequency quadruplicator circuit to process respiration signals. The signals processed are mixed with signals from logic controller circuit, pass the NAND gate, combine with signals from NAND gate and enter the pulse counter circuit. Pulse counter circuit’s digital tube shows the breathing rates.

A High Efficiency Variable Gain Amplifier Circuit with Controllable Transconductance Amp

2009 ◽  
Vol 129 (10) ◽  
pp. 1968-1969
Author(s):  
Tetsuro Okura ◽  
Shunsuke Okura ◽  
Toru Ido ◽  
Kenji Taniguchi
Keyword(s):  
High Efficiency ◽  
Variable Gain Amplifier ◽  
Amplifier Circuit ◽  
Variable Gain

scholarly journals Measurement of respiratory rate with inertial measurement units

2020 ◽  
Vol 6 (3) ◽  
pp. 237-240
Author(s):  
Simon Beck ◽  
Bernhard Laufer ◽  
Sabine Krueger-Ziolek ◽  
Knut Moeller
Keyword(s):  
Air Pollution ◽  
Respiratory Rate ◽  
Frequency Analysis ◽  
Clinical Settings ◽  
Breathing Rate ◽  
Demographic Changes ◽  
Inertial Measurement Units ◽  
Inertial Measurement ◽  
Respiratory Parameters ◽  
Measurement Units

AbstractDemographic changes and increasing air pollution entail that monitoring of respiratory parameters is in the focus of research. In this study, two customary inertial measurement units (IMUs) are used to measure the breathing rate by using quaternions. One IMU was located ventral, and one was located dorsal on the thorax with a belt. The relative angle between the quaternion of each IMU was calculated and compared to the respiratory frequency obtained by a spirometer, which was used as a reference. A frequency analysis of both signals showed that the obtained respiratory rates vary slightly (less than 0.2/min) between the two systems. The introduced belt can analyse the respiratory rate and can be used for surveillance tasks in clinical settings.

New Method of Fault Knowledge Acquisition of Electronic Equipment

2014 ◽  
Vol 496-500 ◽  
pp. 931-934
Author(s):  
Zhi Cheng Huo ◽  
Qi Shun Sun ◽  
Feng Jun Qi ◽  
Guo Bao Ding
Keyword(s):  
Knowledge Acquisition ◽  
Electronic Equipment ◽  
New Method ◽  
Topological Information ◽  
Amplifier Circuit ◽  
C Language ◽  
Transistor Amplifier ◽  
Analog System ◽  
Non Linear ◽  
Electric Equipment

For the problems like discreteness, tolerance, non-linear of the parts, acquiring the fault knowledge of analog system in electric equipment is hard. This method realized the process of KA automatization through the combination of PSPICE software and C language and taking command lines as combining site. Using the batch file, the programs will form some topological information and parameter information about the fault states of a circuit system each time. The result of a experiment about an Basic Transistor Amplifier circuit proves its feasibility.

A 2 GHz Pulse Counter

1972 ◽  
Author(s):  
H.G. Jungmeister ◽  
P. Drugh
Keyword(s):  
Pulse Counter

scholarly journals Sympathetic Neural Outflow and Chemoreflex Sensitivity Are Related to Spontaneous Breathing Rate in Normal Men

Hypertension ◽  
2006 ◽  
Vol 47 (1) ◽  
pp. 51-55 ◽  
Author(s):  
Krzysztof Narkiewicz ◽  
Philippe van de Borne ◽  
Nicola Montano ◽  
Dagmara Hering ◽  
Tomas Kara ◽  
...  
Keyword(s):  
Spontaneous Breathing ◽  
Breathing Rate ◽  
Chemoreflex Sensitivity ◽  
Normal Men

Monitoring Breathing Rate at Home Allows Early Identification of COPD Exacerbations

CHEST Journal ◽  
2012 ◽  
Vol 142 (6) ◽  
pp. 1524-1529 ◽  
Author(s):  
Aina M. Yañez ◽  
Dolores Guerrero ◽  
Rigoberto Pérez de Alejo ◽  
Francisco Garcia-Rio ◽  
Jose Luis Alvarez-Sala ◽  
...  
Keyword(s):  
Early Identification ◽  
Breathing Rate ◽  
Copd Exacerbations ◽  
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