New Invention Profile
| Publication No: | IN202311000229 [India] | Application No: | 202311000229 |
| Title: | Fiber bragg grating (FBG) packaged sensor assembly for railway application and installation fixture thereof | ||
| Publication Date: | 05-07-2024 | File Date: | 29-12-2022 |
| Inventor(s): | Augustin Marutholil Joseph; Kundan Kumar Verma; Satyamangalam Ramanarayanan Viswamurthy; Nitesh Gupta; Sudhir Kumar Sinha; Sreenivasa Rao Ganapa; Nithin Jose; Ashlin Jose | ||
| IPC Classification: | G01L 1/24, G01D 5/353, G01H 9/00, B61L 25/02, G01B 11/16 | ||
| Abstract: | Currently the safety and reliability of rail locomotives, coaches, wagons and track etc., in rail transport is achieved by manual and/or electromechanical system. These systems suffer with various environmental conditions and requires human skill. Alternatively, safety and reliability of railway transport is also required by monitoring the axle of train which is used for signaling and as trigger for other system in real time environment. Solution to above problem is disclosed in present invention by deploying fiber optic sensors. As well known, Fiber Bragg Grating (FBG) sensors has ability to multiplex different sensing locations into the single fiber, immune to Electro-Magnetic Interference, and can be used in various environments condition. However, the fragile nature, directional sensitivity of these sensors calls for developing an efficient packaging mechanism for achieving the required sensitivity, dynamic sensing range, reliable strain transfer, protection of the fiber and routing up to the measurement instrument for robust and possibly all-weather application in railway sector. Considering the above, present invention provides Fiber Bragg Grating (FBG) packaged sensor assembly for the safety of sensors in odd operating conditions for railway application and also provides an installation fixture for mounting the said packaged sensor assembly on to railway track. The packaged sensor assembly are made by embedding the FBG sensor in composite patch, packaged in an aluminum shell, filled with silicone rubber. packaged sensor assembly of present invention is capable of performing the task even when trains are passing on the installation location. The web sensors and under rail sensors are installed using the installation fixture. 18 sensor packages installed on the track and are giving strain response consistently with merely 2% variation even after passing of 20 lakh axles. Fig.1 |
||
CSIR-National Aerospace Laboratories[CSIR-NAL]
: director[at]nal[dot]res[dot]in
:91-80-25086000
:https://www.nal.res.in
: director[at]nal[dot]res[dot]in
:91-80-25086000
:https://www.nal.res.in
Industrial Applications
Rail [Transportation]
Sensors [Electronics]