Intracranial Pressure Signal Processing by Adaptive Fuzzy Network

Author(s):  
Bruno Azzerboni ◽  
Mario Carpentieri ◽  
Maurizio Ipsale ◽  
Fabio La Foresta ◽  
Francesco Carlo Morabito
Author(s):  
Knox T. Millsaps ◽  
Gustave C. Dahl ◽  
Daniel E. Caguiat ◽  
Jeffrey S. Patterson

This paper presents an analysis of data taken from several stall initiation events on a GE LM-2500 gas turbine engine. Specifically, the time series of three separate pressure signals located at compressor stages 3, 6, and 15 were analyzed utilizing various signal processing methods to determine the most reliable indicator of incipient stall for this engine. The spectral analyses performed showed that rotating precursor waves traveling around the annulus at approximately half of the rotor speed were the best indicators. Non-linear chaotic time series analyses were also used to predict stall, but it was not as reliable an indicator. Several algorithms were used and it was determined that stall wave perturbations can be reliably identified about 900 revolutions prior to the stall. This work indicates that a single pressure signal located at stage 3 on an LM-2500 gas turbine is sufficient to provide advance warning of more than 2 seconds prior to the fully developed stall event.


Author(s):  
Federico Wadehn ◽  
David-Jule Mack ◽  
Emanuela Keller ◽  
Thomas Heldt

2012 ◽  
Vol 503 ◽  
pp. 8-11
Author(s):  
Zheng Yuan Zhang ◽  
Cao Yang ◽  
Yong Mei ◽  
Zhi Cheng Feng ◽  
Xiao Gang Li ◽  
...  

pressure sensor, CrSi resistor networks, temperature compensation. Abstract. In this paper, focused on especial requirement monolithic integrated resistance pressure sensor, pressure structure, signal processing circuits and process compatible technology of sensor and IC were studied. The feebleness pressure signal monitoring circuits was designed, high precision CrSi resistor networks was used for temperature compensation of resistance pressure sensor, and a monolithic integrated pressure sensor only 2.3×2.3mm2 was obtained. The measuring results are as follows, measurement range is 5-115kPa, the maximum Vout is more than 4.5V, sensitivity is 1.2%.


2021 ◽  
Author(s):  
Peng Zan ◽  
Hua Zhong ◽  
Jinke Sui ◽  
Banghua Yang ◽  
Guofu Zhang ◽  
...  

2011 ◽  
Vol 172 (1) ◽  
pp. 487-499 ◽  
Author(s):  
Lilian de Martín ◽  
Kaspar van den Dries ◽  
J. Ruud van Ommen

Sign in / Sign up

Export Citation Format

Share Document