Laser methods for nonintrusive measurement of supersonic hydrogen-air combustion flowfields

1988 ◽  
Author(s):  
James C. McDaniel
Keyword(s):  
Nonintrusive Measurement

Nonintrusive Measurement of Echo-Path Parameters in VoIP Environments

2006 ◽  
Vol 55 (6) ◽  
pp. 2062-2071 ◽  
Author(s):  
Lijing Ding ◽  
Mohamed Samy El-Hennawey ◽  
Rafik A. Goubran
Keyword(s):  
Nonintrusive Measurement

scholarly journals Evaluation of Fear Using Nonintrusive Measurement of Multimodal Sensors

Sensors ◽  
2015 ◽  
Vol 15 (7) ◽  
pp. 17507-17533 ◽  
Author(s):  
Jong-Suk Choi ◽  
Jae Bang ◽  
Hwan Heo ◽  
Kang Park
Keyword(s):  
Multimodal Sensors ◽  
Nonintrusive Measurement

Effective Tools for Diagnosing Elusive Turbomachinery Dynamics Problems in the Field

1990 ◽  
Vol 112 (4) ◽  
pp. 470-477 ◽  
Author(s):  
H. R. Simmons ◽  
A. J. Smalley
Keyword(s):  
Signal Processing ◽  
Gas Turbine ◽  
State Of The Art ◽  
Rotating Stall ◽  
Blade Vibrations ◽  
Nonintrusive Measurement ◽  
Alternative Techniques ◽  
Processing Techniques ◽  
Dynamics Problems ◽  
Signal Processing Techniques

This paper describes and discusses techniques that can effectively diagnose dynamics problems in turbomachinery. A variety of elusive dynamics problems are identified that require definition, quantification, diagnosis, and monitoring. The state of the art in measurement and signal processing techniques is discussed with reference to such factors as the directness of the measurement, the degree of intrusion required, the difficulty of installation, and the reliability or durability of the sensor. Several examples of techniques are provided that have proved to be effective in diagnosing elusive dynamics problems; some examples allow comparison of alternative techniques with different degrees of effectiveness. Problems addressed include rotating stall in the compressor section of a gas turbine, coupled lateral/torsional vibration in a gas turbine driven pipeline compressor, forced vibration of combustor parts, strain gage telemetry of blade vibrations, and nonintrusive measurement of blade vibrations using bearing-mounted accelerometers.

Sign in / Sign up

Export Citation Format

Share Document