Design and Experimental Characterization of a Nonintrusive Measurement System of Rotating Blade Vibration

1994 ◽  
Vol 116 (3) ◽  
pp. 657-662 ◽  
Author(s):  
P. Nava ◽  
N. Paone ◽  
G. L. Rossi ◽  
E. P. Tomasini
Keyword(s):  
Measurement System ◽  
Fiber Optic ◽  
Experimental Tests ◽  
Fiber Optic Sensors ◽  
Experimental Characterization ◽  
Blade Vibration ◽  
Rotating Blade ◽  
Nonintrusive Measurement ◽  
Nonintrusive Monitoring

A measurement system for nonintrusive monitoring of rotating blade vibration in turbomachines based on fiber optic sensors is presented. The design of the whole system is discussed; the development of special purpose sensors, their interfacing to the data acquisition system, and the signal processing are outlined. The processing algorithms are tested by software simulation for several possible blade vibrations. Experimental tests performed on different bladed rotors are presented. Results are compared to simultaneous strain gage measurements.

Design and Experimental Characterization of a Non Intrusive Measurement System of Rotating Blade Vibration

1993 ◽  
Author(s):  
P. Nava ◽  
N. Paone ◽  
G. L. Rossi ◽  
E. P. Tomasini
Keyword(s):  
Measurement System ◽  
Fiber Optic ◽  
Experimental Tests ◽  
Data Acquisition System ◽  
Fiber Optic Sensors ◽  
Experimental Characterization ◽  
Blade Vibration ◽  
Rotating Blade ◽  
Strain Gauge Measurements

A measurement system for non-intrusive monitoring of rotating blade vibration in turbomachines based on fiber optic sensors is presented. The design of the whole system is discussed; the development of special purpose sensors, their interfacing to the data acquisition system and the signal processing are outlined. The processing algorithms are tested by software simulation for several possible blade vibrations. Experimental tests performed on different bladed rotors are presented. Results are compared to simultaneous strain gauge measurements.

Fiber optic sensors for characterization of composite structural materials and structural monitoring

1997 ◽  
Author(s):  
Robert P. Kenny ◽  
E. Gutierrez ◽  
Alfredo C. Lucia ◽  
Maurice P. Whelan ◽  
F. Gaiazzi
Keyword(s):  
Fiber Optic ◽  
Structural Materials ◽  
Fiber Optic Sensors ◽  
Structural Monitoring

scholarly journals Wind Turbine Blade Monitoring with Brillouin-Based Fiber-Optic Sensors

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Agnese Coscetta ◽  
Aldo Minardo ◽  
Lucio Olivares ◽  
Maurizio Mirabile ◽  
Mario Longo ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Fiber Optic ◽  
Strain Sensor ◽  
Experimental Tests ◽  
Fiber Optic Sensors ◽  
Composite Blade ◽  
Operation Stability ◽  
Distributed Strain ◽  
Strain Detection

Wind turbine (WT) blade is one of the most important components in WTs, as it is the key component for receiving wind energy and has direct influence on WT operation stability. As the size of modern turbine blade increases, condition monitoring and maintenance of blades become more important. Strain detection is one of the most effective methods to monitor blade conditions. In this paper, a distributed fiber-optic strain sensor is used for blade monitoring. Preliminary experimental tests have been carried out over a 14 m long WT composite blade, demonstrating the possibility of performing distributed strain and vibration measurements.

Integrated Fiber Optic Sensors For Nondestructive Characterization Of Concrete Structures

1997 ◽  
Vol 503 ◽  
Author(s):  
F. Ansari
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Optical Fiber Sensor ◽  
Fiber Optic Sensors ◽  
Fiber Sensors ◽  
Fully Integrated ◽  
Integrated Optical ◽  
Concrete Elements

ABSTRACTIt is possible to monitor the initiation and progress of various mechanical or environmentally induced perturbations in concrete elements by way of fully integrated optical fiber sensors. Geometric adaptability and ease by which optical fibers can be embedded within concrete elements has led to the development of a number of innovative applications for concrete elements. This article is intended for a brief introduction into the theories, principles, and applications of fiber optic sensors as they pertain to applications in concrete.. However, due to the fact that the transduction mechanism in optical fibers is invariant of the materials employed, the principles introduced here also correspond to other structural materials. The only application related differences among various materials pertain to sensitivity and choice of optical fiber sensor types.

Spectral characterization of tracheal and esophageal tissues using a hyperspectral camera and fiber optic sensors

2016 ◽  
Author(s):  
Corinne D. Nawn ◽  
Brian B. Souhan ◽  
Robert Carter ◽  
Caitlin Kneapler ◽  
Nicholas F. Fell ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Spectral Characterization ◽  
Hyperspectral Camera

scholarly journals Design, Manufacture and Experimental Characterization of Magnetorheological Rotary Brake Based on an Peristaltic Pump System

2021 ◽  
Author(s):  
Tomasz Korona ◽  
Pawel Kowol ◽  
GRAZIA LO SCIUTO
Keyword(s):  
Magnetic Field ◽  
Experimental Tests ◽  
Stress And Strain ◽  
Peristaltic Pump ◽  
Experimental Characterization ◽  
Compression Force ◽  
Pump System ◽  
Concept Model ◽  
Design And Manufacture

Abstract In this article the design and manufacture of the innovative MR rotary brake based on peristaltic pump inspired by the concept model of the pliers and the Rochester Pean forceps are presented . For the calculation and analysis of created structure comprehensive of roller, housing and pliers, simulations concerning the stress and strain are conducted to investigate the deformation and possible failure of part or assembly. Experimental tests including measurements of compression force and magnetic field were conducted to evaluate the performance of proposed designed MR rotary brake based on peristaltic pump system constituted by tube containing MR fluid and pliers with arm responsible of the movement and arm completely hold on bench vise

Characterization of Flow Control Device Performance with Distributed Fiber-Optic Sensors

2019 ◽  
Author(s):  
Ben Banack ◽  
Lyle H. Burke ◽  
Daniel Booy ◽  
Emeka Chineme ◽  
Marty Lastiwka ◽  
...  
Keyword(s):  
Flow Control ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Control Device ◽  
Device Performance ◽  
Flow Control Device
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