Next Article in Journal
Design and Characterization of a High Resolution Microfluidic Heat Flux Sensor with Thermal Modulation
Previous Article in Journal
Prospects of Nanotechnology in Clinical Immunodiagnostics
Sensors 2010, 10(7), 6582-6593; doi:10.3390/s100706582
Article

Error Analysis and Measurement Uncertainty for a Fiber Grating Strain-Temperature Sensor

1
 and 2,*
Received: 20 April 2010; in revised form: 17 June 2010 / Accepted: 2 July 2010 / Published: 9 July 2010
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [677 KB, uploaded 21 June 2014]   |   Browse Figures
Abstract: A fiber grating sensor capable of distinguishing between temperature and strain, using a reference and a dual-wavelength fiber Bragg grating, is presented. Error analysis and measurement uncertainty for this sensor are studied theoretically and experimentally. The measured root mean squared errors for temperature T and strain ε were estimated to be 0.13 °C and 6 με, respectively. The maximum errors for temperature and strain were calculated as 0.00155 T + 2.90 × 106 ε and 3.59 × 105 ε + 0.01887 T, respectively. Using the estimation of expanded uncertainty at 95% confidence level with a coverage factor of k = 2.205, temperature and strain measurement uncertainties were evaluated as 2.60 °C and 32.05 με, respectively. For the first time, to our knowledge, we have demonstrated the feasibility of estimating the measurement uncertainty for simultaneous strain-temperature sensing with such a fiber grating sensor.
Keywords: fiber Bragg grating; sensor; strain; temperature; error analysis; measurement uncertainty fiber Bragg grating; sensor; strain; temperature; error analysis; measurement uncertainty
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Tang, J.-L.; Wang, J.-N. Error Analysis and Measurement Uncertainty for a Fiber Grating Strain-Temperature Sensor. Sensors 2010, 10, 6582-6593.

AMA Style

Tang J-L, Wang J-N. Error Analysis and Measurement Uncertainty for a Fiber Grating Strain-Temperature Sensor. Sensors. 2010; 10(7):6582-6593.

Chicago/Turabian Style

Tang, Jaw-Luen; Wang, Jian-Neng. 2010. "Error Analysis and Measurement Uncertainty for a Fiber Grating Strain-Temperature Sensor." Sensors 10, no. 7: 6582-6593.


Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert