Experimental study on fibre Bragg grating temperature sensor and its pressure sensitivity
by Deng-pan Zhang; Jin Wang; Yong-jie Wang
International Journal of Information and Communication Technology (IJICT), Vol. 13, No. 4, 2018

Abstract: At present, ocean temperature almost depends on electric signal inspection, but the sensor is not safe in the water. In order to overcome this shortage and improve measurement veracity and safety, the temperature sensing theory of Bragg grating was analysed and a new ocean temperature sensor was presented with advantages of all optic elements, underwater safety and feasibility of sensor network, etc. By setting a spring in the metal tube, the temperature was measured with pressure isolation encapsulation. Multiple plus-minus temperature tests were carried out. Results show that the sensor under the condition of no pressure and the temperature of 0~35°C has an excellent repeatability, hysteresis and linearity. Temperature sensitivity is 29.9 pm/°C, which is close to the theoretical value. Pressure sensitivity tests were executed under the condition of 0~5 MPa. Results show that the wavelength has no change and is not affected by pressure.

Online publication date: Mon, 21-May-2018

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Information and Communication Technology (IJICT):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com