I have the following scenario.
In a marine environment, an object X moves below the surface of water from point A to point B. As it moves it displaces water around it which creates ripples (or increases detectable pressure levels) in the surroundings. We have sensors Si installed underwater at distance di with known geographic positions. I want to know the following.
1. How do we measure the intensity I of the ripples (generated by the object) at any sensor Si located di meters away from the object?
2. How do we measure the time required for the propagation of the ripple from its origin to sensor Si such that sensor Si can detect intensity I.
Thanks
Find the Time dependent pressure variation at each sensor locations. Calculate the averaged displacement of fluid particles due to the recorded temporal pressure variation. The more the displacement, the more intensity of the ripples (can be fixed to 1.0). The range of intensity can be represented from the scale of 0 to 1.
Stroboscopic techniques may be designed, modified, and applied
[https://spark.iop.org/collections/measuring-waves-ripple-tank#gref]
V. K. Sathyanarayanan Can you please suggest some material(papers, books or any online resource) on this? This area is very new for me therefore in order to understand your answer, I must study some relevant material. Thanks
@P. K. Karmakar Thank you very much!!!
Your Q 1: 1. You can measure the intensity I of any sensor Si located di meters away from the object by means of one of the following devices: GDS_3254 (GW Instek) or HP_54720D equipped with 2 preamp's (e.g. HP 54721A)(HewlettPackard) or
a) Please feel free to [A] skip through my former work, related to lock-in results of an alternating (physical) wave propagation phenomenon:
https://app.dimensions.ai/details/publication/pub.1001515473?and_facet_researcher=ur.01145342546.35
Print ISBN: 978-1-4613-7198-4
Online ISBN: 978-1-4615-4847-8
DOI: https://doi.org/10.1007/978-1-4615-4847-8_119
b) Please feel free to see in [B] the evaluation of a colleague on that former work.
My work got cited by:
Cited by Ref.-No.24: _5.4_@C03: https://app.dimensions.ai/details/publication/pub.1038374344 **(J., M.) et al. [2004]
…\\||@citing https://app.dimensions.ai/details/publication/pub.1038374344#readcube-epdf: from page 805: >>| In dental applications, an early attempt to use the well/established technique of phase/sensitive modulated infrared thermography to obtain
thermal infrared dental images with a camera showed good promise in resolving various thermal
structures of a ground section of a resin/embedded extracted human tooth. 24 The thermo-graphic
magnitude and phase images exhibited better contrast at the low frequency of 0.06 Hz than 0.23 Hz
imaging. This type of phase-sensitive thermo-graphic imaging requires low frequency for best contrast,
which is too slow for dental practice; it also requires significant sample… |.
Dear Colleage,
please find enclosed some literature links.
The one about ethanol mixtures shouldn't be confusing;
(it contains just a mnemonic of mine)
Regards
Chris
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