[march]Optical monitoring of power line health

Question 1

Context?

Answer 1

IIT Madras-> using Raman thermometry on fibre optic cables, monitoring of power transmission cables possible.

Question 2

What is raman thermometry?

Answer 2

-Thermometry = measurement of temperature

-In the Raman effect, when light is scattered off an object, say a molecule, two bands are observed, with higher and lower frequency than the original light, called the Stokes and anti-Stokes bands, respectively.
[Mhnje,ekhadya particle la light collide jhala tar 2 bands distat]

-By studying the relative intensity of the two bands, it is possible to estimate the temperature of the object which scatters the light. This principle is used in Raman Thermometry.[Mhnje tya 2 bands chya intensity varun light jya particle la collide jhala hota tyacha temperature kadhta yeta]

Question 3

Significance?

Answer 3

Hi system vaprun ata power transmission cables cha temperature mojata yeil.