Mr. Vijeesh V. P. Profile

Vijeesh V. P.

at National Institute of Technology Goa

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 9 September 2019 Paper

A diaphragm based fiber Bragg grating (FBG) type pressure sensor for ocean applications

Swamy V. V. S. Ch., Reddy P. S., Vijeesh V. P. , Sanjeev Afzulpurkar, Shivanand Prabhudesai

Proceedings Volume 11088, 110880W (2019) https://doi.org/10.1117/12.2530065

KEYWORDS: Fiber Bragg gratings, Sensors, Copper, Metals, Fiber optics sensors, Head, Modulation, Oceanography, Temperature metrology, Liquids

Read Abstract +

In this paper, a low-cost diaphragm based Fiber Bragg Grating (FBG) pressure sensor design for ocean applications is presented. The pressure with different thickness of copper diaphragms have been measured. A single bare FBG is mounted on top of the circular diaphragm so that maximum pressure is exerted at center of the diaphragm and it will cause the diaphragm lateral shape variation so that a strain will develop on FBG. In order to measure the pressure variation a compact design is made by using stainless steel disks and rubber “O” rings with closed air cavity setup. The pressure in static freshwater column ranging from 0 to 0.04 Mpa was gauged, using closed air cavity setup. In addition to that, another “T” shaped design, for testing has been made with solid stainless steel tube with open air cavity setup for an extended range of pressure sensing. By using an oil pressure pump and open air cavity setup, the value of pressure ranged from 0 to 0.5 Mpa with the step size of 0.01 Mpa. In both setups same thickness of copper material is used to measure the pressure and to compare the results. Furthermore, a range of experiments are carried out to test both the setups. Experimental results indicated that the pressure sensitivities in closed air cavity setup are 0.2286 and 24.95 nm/Mpa with linearity 96.29% and in open air cavity setup is 5.458 and 16.22 nm/Mpa with linearity 99.34% achieved. Open air cavity setup is more sensitive than closed air cavity method and also reported good linearity comparatively with closed air cavity method. The repeatability of the sensor has been tested 3 times and showed less hysteresis. This type of pressure sensor could be used to measure static and dynamic pressure sensing in oceanography, gas and liquid environments.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years