Optical sensors are sensory devices that can be used as instruments or elements to relay signals from the sensors to the electronics
that eventually process these signals. Optical sensors have more applicability
today
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make it suitable for application are its small size, coupled with its ability to
function without electrical power (making it convenient to be used at remote
places), its ability to be multiplexed along the length of the fibers and its
ability to sense time delay as light passes through each sensor etc.
Additionally, these sensors are known to be immune to electromagnetic
interference and do not conduct electricity. These are reasons why optical
sensors can withstand themselves from low and high temperatures.
Optical sensors are available in the size of micro-probes or large devices for
monitoring and capturing continuous information. These optic sensors are widely
being used for multiple applications ranging from monitoring stress in air
planes to helping doctors monitor their patients etc.
Applications
Optical sensors can be segmented on the basis of type as Fibre Optic Sensors, Image
sensors
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harsh conditions and can thus be employed in segments like aerospace, medical,
industrial, telecommunications
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The Market, valued at approximately $ 14.5 billion, is experiencing a growth rate of 6.33% and this value of CAGR is expected to only
rise in the near future due to the overall demand in the sector. Its high cost
acts as a major constraint, limiting its applications only to areas that can
afford the high capital. The prominent areas of its applications are in medical
healthcare, aerospace and defense
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Optical sensor in Healthcare
The market is experiencing high growth in the domain of 3D shape sensing. This application is howeverrelatively new. The age-old
application of these optical sensors for in vivo processes in the healthcare
sector, have been replaced by placing or inserting these devices in places of
the human body which cannot be easily accessed.
Optical Sensors in Oil and Gas
The commercial uses of the Fibercore (Optical fiber) in the femtosecond laser are tremendously benefiting the oil and gas Industry. The femtosecond
gratings uses pure silica core fibres that do not react with the hydrogen,
thereby increasing the lifespan of the fiber and reducing the need for
continuous replacement and repair.
Electro-optical sensors can be found in the energy and power domain to monitor structures that generate electrical
power. The distributed nature of optical fibres makes them ideal especially for
pipeline, wind turbine, power line
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Applications in Semiconductors
These instruments can be found in thermal methods which vary the interferometer in order to switch the signal,
MEMS to deflect the optical signal, piezoelectric beam to change the liquid
crystals and acousto-optics to deflect light.
Space Applications
Apart from the traditional applications of Image sensors, position sensors and
proximity sensors in Space related applications, fiber lasers are being used in
satellite missions.
Challenges
Due to the breadth of applications of the technology
Milwaukee Bucks Women's Jersey , design and functionality are essential to the technology. A lack of adequate technical skills and knowledge in the
physical, material and environmental properties of these instruments is a big
hurdle that needs to be crossed. Additionally wide-scale and extensive R&D
in the domain will also call for a high amount of investment.
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