Multichannel fiber optic pressure sensor system for parametric emission monitoring in combustion engines

1995 ◽  
Author(s):  
Thomas J. Poorman ◽  
Sergey P. Kalashnikov ◽  
Marek T. Wlodarczyk ◽  
Adam Daire ◽  
Wayne Goeke ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Fiber Optic ◽  
Sensor System ◽  
Combustion Engines ◽  
Emission Monitoring

Multi-Channel and Portable Fiber Optic Combustion Pressure Sensor System

1995 ◽  
Author(s):  
Thomas Poorman ◽  
Sergiey Kalashnikov ◽  
Marek T. Wlodarczyk ◽  
Adam Daire ◽  
Wayne Goeke ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Fiber Optic ◽  
Sensor System ◽  
Combustion Pressure

Fiber optic pressure sensor system for gas turbine engine control

1991 ◽  
Author(s):  
Laurence N. Wesson ◽  
Nellie L. Cabato ◽  
Nicholson L. Pine ◽  
Victor J. Bird
Keyword(s):  
Gas Turbine ◽  
Pressure Sensor ◽  
Fiber Optic ◽  
Gas Turbine Engine ◽  
Sensor System ◽  
Engine Control ◽  
Turbine Engine

Fiber-Optic Pressure Sensor System for Diagnosing Anomalies of the Oral Cavity

2020 ◽  
Author(s):  
Elena Badeeva ◽  
Tatyana Murashkina ◽  
Yuri Vasiliev ◽  
Lyudmila Tereschenko ◽  
Tatiana Istomina
Keyword(s):  
Oral Cavity ◽  
Pressure Sensor ◽  
Fiber Optic ◽  
Sensor System

Fiber Optic In-Cylinder Combustion Pressure Sensor System

1997 ◽  
Author(s):  
Chung E. Lee ◽  
Robert A. Atlkins ◽  
James H. Gardner ◽  
William N. Gibler ◽  
Leslie W. Perry ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Fiber Optic ◽  
Sensor System ◽  
Combustion Pressure

scholarly journals Pressure Sensor System for Customized Scoliosis Braces

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1153
Author(s):  
Franz Konstantin Fuss ◽  
Asliza Ahmad ◽  
Adin Ming Tan ◽  
Rizal Razman ◽  
Yehuda Weizman
Keyword(s):  
Pressure Sensor ◽  
Testing Machine ◽  
Force Plate ◽  
Cost Effective ◽  
Mobile Systems ◽  
Sensor System ◽  
Closed Cell ◽  
Hard Shell ◽  
Energy Absorbers ◽  
Material Testing Machine

Hard-shell thoracolumbar sacral orthoses (TLSOs) are used for treating idiopathic scoliosis, a deformation of the spine with a sideways curvature. The pressure required inside the TLSO for ideal corrective results remains unclear. Retrofitting TLSOs with commercially available pressure measurement systems is expensive and can only be performed in a laboratory. The aim of this study was to develop a cost-effective but accurate pressure sensor system for TLSOs. The sensor was built from a piezoresistive polymer, placed between two closed-cell foam liners, and evaluated with a material testing machine. Because foams are energy absorbers, the pressure-conductance curve was affected by hysteresis. The sensor was calibrated on a force plate with the transitions from loading to unloading used to establish the calibration curve. The root mean square error was 12% on average within the required pressure range of 0.01–0.13 MPa. The sensor reacted to the changing pressure during breathing and different activities when tested underneath a chest belt at different tensions. The peak pressure reached 0.135 MPa. The sensor was further tested inside the scoliosis brace during different activities. The measured pressure was 0.014–0.124 MPa. The results from this study enable cheaper and mobile systems to be used for clinical studies on the comfort and pressure of braces during daily activities.

A Real Time Vehicle Collision Sensor and Reporting System Using Load Sensor, GSM and GPS Technology

2013 ◽  
Vol 718-720 ◽  
pp. 1740-1745
Author(s):  
Tulu Muluneh Mekonnen ◽  
De Ning Jiang ◽  
Yong Xin Feng
Keyword(s):  
Real Time ◽  
Pressure Sensor ◽  
Reporting System ◽  
Electronic Device ◽  
Text Message ◽  
Sensor System ◽  
Gps Receiver ◽  
Gps Technology ◽  
Vehicle Collision ◽  
Load Sensor

Vehicle collision sensor system and reporting accident to police is an electronic device installed in a vehicle to inform police man in case of accident to track the vehicles location. This system works using pressure sensor, GPS and GSM technology. These technology embedded together to sense the vehicle collision and indicate the position of the vehicle or locate the place of accident in order to solve the problem immediately (as soon as possible).For doing so AT89S52 microcontroller is interfaced serially to a GSM modem, GPS receiver, and pressure sensor. A GSM modem is used to send the position (Latitude and Longitude) of the vehicle, the plate of the vehicle and the SMS text from the accident place. The GPS modem will continuously give the data (longitude and latitude) and Load sensor senses the collision of the vehicle against obstacles and input to microcontroller. As load sensor senses the collision, the GSM start to send the plate of the vehicle, text message and the position of the vehicle in terms of latitude and longitude in real time.

Comb Filter-Based Fiber-Optic Methane Sensor System With Mitigation of Cross Gas Sensitivity

2012 ◽  
Vol 30 (19) ◽  
pp. 3103-3109 ◽  
Author(s):  
Duan Liu ◽  
Songnian Fu ◽  
Ming Tang ◽  
Perry Shum ◽  
Deming Liu
Keyword(s):  
Fiber Optic ◽  
Sensor System ◽  
Comb Filter ◽  
Gas Sensitivity ◽  
Methane Sensor
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