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When should you calibrate your combustion analyzer?

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Journal Article•DOI CFD-assisted analysis of the characteristics of stratified-charge combustion inside a wall-guided gasoline direct injection engine Yu-Hsuan Su, Ting-Fu Kuo - Show less +1 more 15 May 2019-Energy 7 Citations	Emission data obtained from the exhaust gas analyzer indirectly confirmed the effects of SOI on the combustion behaviors inside the GDI engine.
Proceedings Article•DOI Intracavity Raman spectroscopy for industrial stack gas analysis Troy Wayne Bear Francisco, Ronald R. Rich - Show less +1 more 07 Dec 2004 1 Citations	When applicable, this technique could replace multiple analyzer systems and their associated sampling systems, leading to improved analyzer reliability and maintainability.
Journal Article•DOI On-line computer aided multi-component analysis using organic elemental analyzer Pu Qian 01 Sep 2000-Computational Biology and Chemistry 2 Citations	It indicates that the proposed program is applicable for the combustion-GC type organic elemental analyzer.
Book Chapter•DOI Generation of Efficient Interprocedural Analyzers with PAG Martin Alt, Florian Martin - Show less +1 more 25 Sep 1995 86 Citations	We conclude that analyzer writing better should be replaced with analyzer generation.
Open access•Posted Content•DOI An improved water correction function for Picarro greenhouse gas analyzers Friedemann Reum, Christoph Gerbig, Jost V. Lavric, Chris W. Rella, Mathias Göckede - Show less +4 more 07 Jun 2017-Atmospheric Measurement Techniques Discussions 2 Citations	Thus, correction coefficients should be determined for each analyzer individually.

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What are the limitations of current observational techniques for measuring combustion?5 answersCurrent observational techniques for measuring combustion have several limitations. One limitation is the difficulty in measuring combustion noise in jet engines due to the assumption of single mode propagation in the engine duct, which limits the frequency range over which the measurement can be done. Another limitation is the time and effort required for complex measurement techniques, such as optical methods, which often require changes to the engine and have a high expenditure of time. Additionally, interpreting the results from non-invasive methods like acoustic and optical methods can be challenging. Furthermore, the spatial-spectral resolution tradeoff in flame detection using optical sensors can be a constraint. Finally, the complicated chemistry and flow dynamics of combustion systems make numerical simulations of their behavior relatively primitive, highlighting the need for improved methods of measuring true dynamical behavior.

How to calibrate a lasertracker?5 answersTo calibrate a lasertracker, several methods can be used. One method involves installing a single-frequency laser interferometer at the center of a mechanism with two rotational degrees of freedom. The laser tracker can then track a target moving in space and measure its polar coordinates, allowing for zero point calibration. Another method involves using a calibration device located at the base of a position-sensitive surface detector. The device emits a measuring radiation onto the detector, and an evaluation and control unit determines calibration parameters based on the incidence of the radiation. Additionally, a laser tracker can be calibrated by carrying out sample measurements with variation of the distance to the target, while keeping the interferometer wavelength stable. Finally, a decentralized distributed multi-lasertracker-system can be used for calibration, which involves determining transformation matrices between the lasertrackers and distributing the measurement in the network.

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