Abstract
In many cases it is necessary to measure local water temperatures with high local resolution. The usage of common thermocouples limits the local resolution, affects the temperature field and may cause incorrect readings.
The paper presents a new technique to measure temperatures of liquid water in situ, using an optical measurement method - linear Raman spectroscopy. The shape of liquid water Raman spectra changes with temperature and this allows to measure water temperatures one dimensionally - that means along a laser beam - with good accuracy.
Two dimensional measurements miss one of the major advantages of one dimensional Raman measurements. The spectral information about the fluorescence background will be lost and this reduces accuracy. But it might be a valuable method to locate and evaluate local temperature differences.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2000 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Karl, J., Ottmann, M., Hein, D. (2000). Measuring Water Temperatures by Means of Linear Raman Spectroscopy. In: Adrian, R.J., Durão, D.F.G., Durst, F., Heitor, M.V., Maeda, M., Whitelaw, J.H. (eds) Laser Techniques Applied to Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56963-0_6
Download citation
DOI: https://doi.org/10.1007/978-3-642-56963-0_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-63087-3
Online ISBN: 978-3-642-56963-0
eBook Packages: Springer Book Archive