US 12,480,912 B2
Method and system for faster assessment of sound speed in fluids using compressive sensing technique
Arijit Sinharay, Kolkata (IN); Raj Rakshit, Kolkata (IN); Supriya Gain, Kolkata (IN); Tapas Chakravarty, Kolkata (IN); Subhadeep Basu, Kolkata (IN); and Achanna Anil Kumar, Bangalore (IN)
Assigned to Tata Consultancy Services Limited, Mumbai (IN)
Filed by Tata Consultancy Services Limited, Mumbai (IN)
Filed on Sep. 28, 2022, as Appl. No. 17/936,210.
Claims priority of application No. 202121049707 (IN), filed on Oct. 29, 2021.
Prior Publication US 2023/0134893 A1, May 4, 2023
Int. Cl. G01N 29/024 (2006.01); G01N 29/46 (2006.01)
CPC G01N 29/024 (2013.01) [G01N 29/46 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A processor implemented method, comprising:
receiving, by a sound speed assessment system via one or more hardware processors, one or more excitation signals and one or more quadrature signals generated corresponding to the one or more excitation signals from a fluid container containing a fluid, wherein the fluid container is with an inner wall-to-wall distance ‘D’, a wall thickness ‘d’ and equipped with one or more piezo electric transducers placed outside a container wall of the fluid container, for exciting the fluid kept in the fluid container, wherein the one or more piezo electric transducers generate the one or more excitation signals and corresponding one or more quadrature signals by exciting the fluid with one or more frequencies associated with one or more random samples,
transmitting the generated one or more excitation signals and the one or more corresponding quadrature signals to the sound speed assessment system using a network that is coupled to and in communication with the sound speed assessment system and the fluid container;
creating, by the sound speed assessment system via the one or more hardware processors, a pseudo analytic signal vector based, at least in part, on the one or more excitation signals and the one or more quadrature signals using a pre-defined vector creation formula;
estimating, by the sound speed assessment system via the one or more hardware processors, a pulse-echo view by applying a compressive sensing technique over the created pseudo analytic signal vector and the compressive sensing technique reconstruct the pulse-echo view for an original high-resolution spectra, wherein the pulse-echo view is a vector;
determining, by the sound speed assessment system via the one or more hardware processors, whether the estimation of the pulse-echo view is successful based on a pre-defined criteria; and
calculating, by the sound speed assessment system via the one or more hardware processors, a sound speed in the fluid based on the determination using the pulse-echo view and a pre-defined sound speed calculation formula.