Mr. Vengal Rao Pachava Profile

Vengal Rao Pachava

Research scholar at National Institute of Technology Warangal

SPIE Involvement:

Author

Area of Expertise:

Otical fiber sensing , Strain , Pressure , Fiber Bragg gratings , High temperature

Websites:

Company Website

Profile Summary

I have been working as a PhD Scholar Since 2010 in the Photonics laboratory, Physics department, National Institute of Technology (NIT) Warangal, Telangana, India. My area of research is " Design and development of fiber Bragg grating (FBG) high sensitive pressure senors for down-hole oil & gas applications". I am also expertise in design and development of novel fiber optic and fiber Bragg grating sensors for monitoring strain, temperature, vibration, liquid level, refractive index, health condition of civil and aerospace engineering structures.

Current research interests are

• Fiber optic sensors and Applications
• Fiber Bragg grating (FBG) sensors and Applications
• Health monitoring of Civil and Aeronautical engineering structures using fiber optic techniques
• Design and development of fiber optic sensors and devices for R & D applications
• Photonic crystal fiber sensors and Applications
• FBG Interrogation systems
. Photonics for Energy applications
• Fiber LASERs and Applications

Publications (25)

SPIE Journal Paper | 16 November 2016

High-temperature measurement using fiber Bragg grating integrated with a transducer

Venkata Reddy Mamidi, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, Venkatapparao Thumu, Vengal Rao Pachava

OE, Vol. 55, Issue 11, 116104, (November 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.116104

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature metrology, Transducers, Modulation, Optical fibers, Optical engineering, Signal detection, Electronic circuits, Fiber optics sensors

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Proceedings Article | 23 September 2015 Paper

Paper

Low-cost and high-resolution interrogation scheme for LPG-based temperature sensor

Venkata Reddy M., Srimannarayana K., Venkatappa Rao T., Vengal Rao P.

Proceedings Volume 9577, 95770L (2015) https://doi.org/10.1117/12.2188184

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature metrology, Signal attenuation, Temperature sensors, Modulation, Photodiodes, Optical filters, Optical amplifiers, Electronic filtering

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SPIE Journal Paper | 11 September 2015

Fiber Bragg grating–based hydraulic pressure sensor with enhanced resolution

Vengal Rao Pachava, Srimannarayana Kamineni, Sai Shankar Madhuvarasu, Venkata Reddy Mamidi

OE, Vol. 54, Issue 09, 096104, (September 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.9.096104

KEYWORDS: Fiber Bragg gratings, Sensors, Resolution enhancement technologies, Optical resolution, Structured optical fibers, Head, Optical filters, Signal detection, Metals, Optical fibers

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Proceedings Article | 26 August 2015 Paper

Paper

Design and development of a high sensitive low cost fiber optic refractometer

V. N. Kishore P., Sai Shankar M., Vengal Rao P.

Proceedings Volume 9586, 95860A (2015) https://doi.org/10.1117/12.2189436

KEYWORDS: Sensors, Refractive index, Fiber optics sensors, Fiber optics, Head, Liquids, Single mode fibers, Cladding, Etching, Industrial chemicals

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Proceedings Article | 13 May 2015 Paper

Paper

Pest damage assessment in fruits and vegetables using thermal imaging

Badrinath Vadakkapattu Canthadai, M. Esakki Muthuraju, Vengalrao Pachava, Dipankar Sengupta

Proceedings Volume 9488, 94880P (2015) https://doi.org/10.1117/12.2193713

KEYWORDS: Thermography, Temperature metrology, Agriculture, Infrared imaging, Infrared radiation, Thermal imaging cameras, Cameras, Nondestructive evaluation, Image resolution, Physics

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Proceedings Article | 5 May 2015 Paper

Paper

FBG based novel sensor design for low vacuum measurement with high sensitivity

Vengal Rao Pachava, Srimannarayana Kamineni, Sai Shankar Madhuvarasu, Venkata Reddy Mamidi

Proceedings Volume 9506, 95061K (2015) https://doi.org/10.1117/12.2182406

KEYWORDS: Fiber Bragg gratings, Sensors, Mercury, Metals, Fiber optics sensors, Head, Optical fibers, Liquids, Electromagnetic coupling, Temperature metrology

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Proceedings Article | 5 May 2015 Paper

Paper

FBG-based novel sensor for high-temperature measurement and its low-cost interrogation

Venkata Reddy M., Srimannarayana K., R. L. N. Sai Prasad, T. V. Apparao, Vengal Rao P.

Proceedings Volume 9506, 95060C (2015) https://doi.org/10.1117/12.2181966

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature metrology, Transducers, Modulation, Photodiodes, Fiber optics sensors, Optical amplifiers, Temperature sensors, Spectrum analysis

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Proceedings Article | 5 March 2015 Paper

Paper

Low cost fiber optic sensing of sugar solution

M. Muthuraju, Anurag Reddy Patlolla, Badrinath Vadakkapattu Canthadai, Vengalrao Pachava

Proceedings Volume 9317, 93170L (2015) https://doi.org/10.1117/12.2176390

KEYWORDS: Refractive index, Sensors, Fiber optics sensors, Liquids, Reflectors, Optical fibers, Optical testing, Fiber optics, Remote sensing, Electromagnetic coupling

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SPIE Journal Paper | 17 October 2014 Open Access

Open Access

Errata: Method to athermalize a long-period fiber grating for interrogation of fiber Bragg grating–based sensors

Venkata Reddy Mamidi, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, Venkatapparao Thumu, Vengal Rao Pachava

OE, Vol. 53, Issue 10, 109801, (October 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.10.109801

KEYWORDS: Fiber Bragg gratings, Sensors, Physics, Optical engineering

SPIE Journal Paper | 22 September 2014

Method to athermalize a long-period fiber grating for interrogation of fiber Bragg grating–based sensors

Venkata Reddy Mamidi, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, Venkatapparao Thumu, Vengal Rao Pachava

OE, Vol. 53, Issue 09, 096111, (September 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.9.096111

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature metrology, Signal attenuation, Temperature sensors, Modulation, Refractive index, Optical engineering, Cladding, Optical fibers

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Proceedings Article | 5 September 2014 Paper

Paper

Study of surface roughness of corroded metals using plastic optical fiber sensor

M. Esakkimuthu Raju, Badrinath Vadakkapattu Canthadai, Kumar Ravi, Vengalrao Pachava, Dipankar Sengupta

Proceedings Volume 9205, 920509 (2014) https://doi.org/10.1117/12.2061974

KEYWORDS: Surface roughness, Sensors, Metals, Light scattering, Corrosion, Polymer optical fibers, Reflection, Optical fibers, Fiber optics sensors, Zinc

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Proceedings Article | 18 June 2014 Paper

Paper

Intensity insensitive one-dimensional optical fiber tilt sensor

Badrinath Vadakkapattu Canthadai, Dipankar Sengupta, Vengalrao Pachava, P. Kishore

Proceedings Volume 9098, 909811 (2014) https://doi.org/10.1117/12.2050821

KEYWORDS: Sensors, Reflectors, Optical fibers, Polymer optical fibers, Fiber optics sensors, Diodes, Physics, Modulation, Refractive index, Fiber optics

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Proceedings Article | 15 May 2014 Paper

Paper

FBG sensor for temperature-independent high sensitive pressure measurement with aid of a Bourdon tube

K. Srimannarayana, P. Vengal Rao, M. Sai Shankar, P. Kishore

Proceedings Volume 9141, 91412E (2014) https://doi.org/10.1117/12.2052908

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature metrology, Head, Optical fibers, Sensing systems, Liquids, Fiber optics sensors, Photography, Multiplexing

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Proceedings Article | 15 May 2014 Paper

Paper

Fiber Bragg grating seismic sensor using inverted spring-mass system

Dinakar Dantala, Putha Kishore, Pachava Vengal Rao, Kamineni Srimannarayana

Proceedings Volume 9141, 91411Q (2014) https://doi.org/10.1117/12.2052803

KEYWORDS: Fiber Bragg gratings, Sensors, Seismic sensors, Optical fibers, Fiber optics sensors, Head, Temperature metrology, Modulation, Refractive index, Single mode fibers

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SPIE Journal Paper | 4 October 2013

Vibration sensor using 2 × 2 fiber optic coupler

Putha Kishore, Dantala Dinakar, Kamineni Srimannarayana, Pachava Rao

OE, Vol. 52, Issue 10, 107104, (October 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.107104

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Vibrometry, Light, Reflectors, Modulation, Signal detection, Signal attenuation, Fiber optics tests

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Proceedings Article | 26 September 2013 Paper

Paper

Remote sensing of liquid level measurement using Fiber Bragg grating sensor

Dipankar Sengupta, M. Sai Shankar, K. Srimannarayana, P. Vengal Rao

Proceedings Volume 8856, 88562R (2013) https://doi.org/10.1117/12.2028666

KEYWORDS: Fiber Bragg gratings, Liquids, Sensors, Remote sensing, Head, Refractive index, Optical fibers, Light, Optical testing, Temperature metrology

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Proceedings Article | 18 September 2013 Paper

Paper

Remote vibration sensor using fiber optic fused 2x2 coupler

Dinakar Dantala, Kishore Putha, Srimannarayana Kamineni, Vengal Rao Pachava

Proceedings Volume 8836, 883605 (2013) https://doi.org/10.1117/12.2023462

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Modulation, Vibrometry, Signal to noise ratio, Signal detection, Signal attenuation, Calibration, Light

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Proceedings Article | 18 September 2013 Paper

Paper

High sensitive FBG pressure sensor using metal bellows

P. Vengal Rao, K. Srimannarayana, M. Sai Shankar, P. Kishore

Proceedings Volume 8836, 88360D (2013) https://doi.org/10.1117/12.2024262

KEYWORDS: Fiber Bragg gratings, Temperature metrology, Sensors, Metals, Fiber optics sensors, Head, Refractive index, Optical fibers, Gas sensors, Liquids

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Proceedings Article | 22 June 2013 Paper

Paper

A simple 1x2 plastic optical fiber coupler based vibration sensor

Kishore P., Dinakar D., Srimannarayana K., Vengal Rao P.

Proceedings Volume 8769, 876929 (2013) https://doi.org/10.1117/12.2021099

KEYWORDS: Sensors, Fiber optics sensors, Modulation, Reflectors, Polymer optical fibers, Head, Fiber optics, Vibrometry, Fiber couplers, Light emitting diodes

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Proceedings Article | 22 June 2013 Paper

Paper

Diaphragm based high sensitive FBG pressure sensor

Vengal Rao P., Srimannarayana K., Sai Shankar M., Kishore P.

Proceedings Volume 8769, 876927 (2013) https://doi.org/10.1117/12.2021101

KEYWORDS: Fiber Bragg gratings, Sensors, Metals, Head, Polymers, Optical fibers, Liquids, Fiber optics sensors, Polymeric sensors, Transducers

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Proceedings Article | 9 May 2012 Paper

Paper

An etched fiber optic vibration sensor to monitor the simply supported beam

Kishore Putha, Dantala Dinakar, Pachava Rao, Dipankar Sengupta, K. Srimannarayana, M. Sai Shankar

Proceedings Volume 8439, 84392F (2012) https://doi.org/10.1117/12.922176

KEYWORDS: Sensors, Fiber optics sensors, Fiber Bragg gratings, Fiber optics, Fiber amplifiers, Optical amplifiers, Data acquisition, Telecommunications, Cladding, Single mode fibers

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Proceedings Article | 9 May 2012 Paper

Paper

Development of high sensitivity pressure sensor using reduced clad FBG

P. Vengal Rao, K. Srimannarayana, P. Kishore, M. Sai Shankar, D. Sengupta, P. Saidi Reddy

Proceedings Volume 8439, 84392G (2012) https://doi.org/10.1117/12.922160

KEYWORDS: Sensors, Fiber Bragg gratings, Polymers, Head, Silicon, Cladding, Polymeric sensors, Metals, Spectrum analysis, Optical fibers

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Proceedings Article | 29 November 2011 Paper

Paper

Non-contact vibration sensor using bifurcated bundle glass fiber for real-time monitoring

K. Putha, D. Dinakar, M. Sai Shankar, K. Srimannarayana, P. Vengal Rao, D. Sengupta, P. Saidi Reddy

Proceedings Volume 8311, 83110P (2011) https://doi.org/10.1117/12.904566

KEYWORDS: Sensors, Fiber optics sensors, Glasses, Infrared sensors, Rutherfordium, Head, Oscilloscopes, Environmental sensing, Stray light, Reflectivity

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Proceedings Article | 29 November 2011 Paper

Paper

Temperature compensated liquid level sensor using FBGs and a Bourdon tube

D. Sengupta, M. Sai Shankar, P. Vengal Rao, P. Saidi Reddy, R. L. Sai Prasad, P. Kishore, K. Srimannarayana

Proceedings Volume 8311, 83110R (2011) https://doi.org/10.1117/12.905702

KEYWORDS: Fiber Bragg gratings, Sensors, Liquids, Temperature metrology, Head, Environmental sensing, Fiber optics sensors, Optical fibers, Light sources, Spectrum analysis

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Proceedings Article | 29 November 2011 Paper

Paper

An FBG sensor for strain and temperature discrimination at cryogenic regime

D. Sengupta, M. Sai Shankar, P. Kishore, P. Saidi Reddy, R. L. Sai Prasad, P. Rao, K. Srimannarayana

Proceedings Volume 8311, 831106 (2011) https://doi.org/10.1117/12.905689

KEYWORDS: Fiber Bragg gratings, Temperature metrology, Cryogenics, Sensors, Adhesives, Coating, Excimer lasers, Spectrum analysis, Neck, Physics

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Showing 5 of 25 publications

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