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公开(公告)号：US20220136924A1
公开(公告)日：2022-05-05
申请号：US17453031
申请日：2021-11-01
Applicant: Tata Consultancy Services Limited
Inventor： Arijit Sinharay , Gitesh Kulkarni , Abhijeet Gorey , Chirabrata Bhaumik , Tapas Chakravarty , Arpan Pal
Abstract: Fluids are normally transported from one place to another through pipelines. It is essential to monitor the pipeline to avoid leakage or theft. It is expensive and not feasible to install cameras and sensors along the whole length of the pipeline. A system and method for inspecting and detecting fluid leakage in a pipeline has been provided. The system is using vibration sensors along with pressure sensors to detect the leakage or theft along with the exact location of the leakage or theft. The pressure sensors are mounted on the pipeline so that the fluid touches the diaphragm of the pressure sensors to sense the wave generated due to leakage. The vibration sensors are mounted on top of the pipeline surface and on the nearby ground to eliminate general noise conditions. Moreover, two pressure sensors are also installed at opposite sides to pinpoint the leakage location.
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公开(公告)号：US11754482B2
公开(公告)日：2023-09-12
申请号：US17456063
申请日：2021-11-22
Applicant: Tata Consultancy Services Limited
Inventor： Abhijeet Gorey , Arijit Sinharay , Chirabrata Bhaumik , Tapas Chakravarty , Arpan Pal
IPC: G01N11/00
CPC classification number: G01N11/00 , G01N2011/0073
Abstract: This disclosure relates generally to a method and system for determining viscosity information of fluids. The present disclosure utilizes an intensity modulated continuous wave (CW) laser diode-based PA sensing method to obtain a continuous wave photoacoustic (CWPA) spectra. Through this CWPA spectra, a full width half maximum (FWHM) and a spectral area is determined to obtain the information about the viscosity of fluids. Although, the CWPA based sensing technique is used for distinguishing different types of abnormalities in tissues, so far it is not used for measuring viscosity which is an important thermo-physical property. The viscosity information of the fluids from the normalized Gaussian fitted CWPA spectra is based on a viscosity feature computed from a FWHM, and a spectral area. The viscosity feature improves the good of fit parameter (R2) significantly to 0.98 as compared to the traditional only FWHM based viscosity determination for which R2 is 0.91.
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公开(公告)号：US11668621B2
公开(公告)日：2023-06-06
申请号：US17453031
申请日：2021-11-01
Applicant: Tata Consultancy Services Limited
Inventor： Arijit Sinharay , Gitesh Kulkarni , Abhijeet Gorey , Chirabrata Bhaumik , Tapas Chakravarty , Arpan Pal
Abstract: Fluids are normally transported from one place to another through pipelines. It is essential to monitor the pipeline to avoid leakage or theft. It is expensive and not feasible to install cameras and sensors along the whole length of the pipeline. A system and method for inspecting and detecting fluid leakage in a pipeline has been provided. The system is using vibration sensors along with pressure sensors to detect the leakage or theft along with the exact location of the leakage or theft. The pressure sensors are mounted on the pipeline so that the fluid touches the diaphragm of the pressure sensors to sense the wave generated due to leakage. The vibration sensors are mounted on top of the pipeline surface and on the nearby ground to eliminate general noise conditions. Moreover, two pressure sensors are also installed at opposite sides to pinpoint the leakage location.
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