Abstract

By means of novel packaged-structure design, a temperature independent differential pressure sensor based on fiber Bragg gratings with high sensitivity is experimentally demonstrated. The differential pressure sensitivity of the sensor can reach to 821.87nm/MPa. This device can also be used for simultaneous measurement of temperature and differential pressure, which is suitable for applications involving measurement of liquid level, liquid density or specific gravity detection.

© 2008 Optical Society of America

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  1. W. W. Morey, G. Meltz, and W. H. Glenn, "Fiber optic Bragg gratingsensors," Proc. SPIE 1169, 98-107 (1989).
  2. A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
    [CrossRef]
  3. M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
    [CrossRef]
  4. M. G. Xu, H. Geiger, and J. P. Dakin, "Fiber grating pressure sensor with enhanced sensitivity using a glass-bubble housing," Electron. Lett. 32, 128-129 (1996).
    [CrossRef]
  5. Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
    [CrossRef]
  6. Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
    [CrossRef]
  7. T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
    [CrossRef]
  8. K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).
  9. Y. Zhao, C. Yub, and Y. Liao, " Differential FBG sensor for temperature-compensated high-pressure (or displacement) measurement," J. Opt. Laser Technol. 36, 39-42 (2004).
    [CrossRef]
  10. J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
    [CrossRef]
  11. W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
    [CrossRef]
  12. A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
    [CrossRef]

2007 (1)

W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
[CrossRef]

2005 (1)

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

2004 (1)

Y. Zhao, C. Yub, and Y. Liao, " Differential FBG sensor for temperature-compensated high-pressure (or displacement) measurement," J. Opt. Laser Technol. 36, 39-42 (2004).
[CrossRef]

2002 (1)

K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).

2001 (2)

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
[CrossRef]

2000 (1)

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

1997 (2)

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

1996 (1)

M. G. Xu, H. Geiger, and J. P. Dakin, "Fiber grating pressure sensor with enhanced sensitivity using a glass-bubble housing," Electron. Lett. 32, 128-129 (1996).
[CrossRef]

1993 (1)

M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
[CrossRef]

1989 (1)

W. W. Morey, G. Meltz, and W. H. Glenn, "Fiber optic Bragg gratingsensors," Proc. SPIE 1169, 98-107 (1989).

Askins, C. G.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Chiang, K. S.

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

Chow, Y. T.

M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
[CrossRef]

Chu, B. C. B.

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Dakin, J. P.

M. G. Xu, H. Geiger, and J. P. Dakin, "Fiber grating pressure sensor with enhanced sensitivity using a glass-bubble housing," Electron. Lett. 32, 128-129 (1996).
[CrossRef]

M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
[CrossRef]

Davis, M. A.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Dong, X.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

Dou, Q.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Feng, D.

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Friebele, E. J.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Fukuchi, K.

K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).

Geiger, H.

M. G. Xu, H. Geiger, and J. P. Dakin, "Fiber grating pressure sensor with enhanced sensitivity using a glass-bubble housing," Electron. Lett. 32, 128-129 (1996).
[CrossRef]

Glenn, W. H.

W. W. Morey, G. Meltz, and W. H. Glenn, "Fiber optic Bragg gratingsensors," Proc. SPIE 1169, 98-107 (1989).

Guo, T.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Guo, Z.

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

Hishida, Y.

K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).

Huang, G.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Ishi, S.

K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).

Jackson, P. R

J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
[CrossRef]

Jones, B. E.

J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
[CrossRef]

Kersey, A. D.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Kojima, S.

K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).

Koo, K. P.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

LeBlanc, M.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Li, F.

W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
[CrossRef]

Liao, Y.

Y. Zhao, C. Yub, and Y. Liao, " Differential FBG sensor for temperature-compensated high-pressure (or displacement) measurement," J. Opt. Laser Technol. 36, 39-42 (2004).
[CrossRef]

Lim, J.

J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
[CrossRef]

Liu, L. H.

W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
[CrossRef]

Liu, Y.

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

Liu, Y. L.

W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
[CrossRef]

Liu, Z.

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Meltz, G.

W. W. Morey, G. Meltz, and W. H. Glenn, "Fiber optic Bragg gratingsensors," Proc. SPIE 1169, 98-107 (1989).

Morey, W. W.

W. W. Morey, G. Meltz, and W. H. Glenn, "Fiber optic Bragg gratingsensors," Proc. SPIE 1169, 98-107 (1989).

Patrick, H. J.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Putnam, M. A.

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Reekie, L.

M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
[CrossRef]

Xu, M. G.

M. G. Xu, H. Geiger, and J. P. Dakin, "Fiber grating pressure sensor with enhanced sensitivity using a glass-bubble housing," Electron. Lett. 32, 128-129 (1996).
[CrossRef]

M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
[CrossRef]

Xue, L.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Yang, Q. P.

J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
[CrossRef]

Yub, C.

Y. Zhao, C. Yub, and Y. Liao, " Differential FBG sensor for temperature-compensated high-pressure (or displacement) measurement," J. Opt. Laser Technol. 36, 39-42 (2004).
[CrossRef]

Zhang, H.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Zhang, W. T.

W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
[CrossRef]

Zhang, Y.

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

Zhao, Q.

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Zhao, Y.

Y. Zhao, C. Yub, and Y. Liao, " Differential FBG sensor for temperature-compensated high-pressure (or displacement) measurement," J. Opt. Laser Technol. 36, 39-42 (2004).
[CrossRef]

Electron. Lett. (3)

M. G. Xu, L. Reekie, Y. T. Chow, and J. P. Dakin, "Optical in-fiber grating high pressure sensor," Electron. Lett. 29, 398-399 (1993).
[CrossRef]

M. G. Xu, H. Geiger, and J. P. Dakin, "Fiber grating pressure sensor with enhanced sensitivity using a glass-bubble housing," Electron. Lett. 32, 128-129 (1996).
[CrossRef]

Y. Liu, Z. Guo, Y. Zhang, K. S. Chiang, and X. Dong, "Simultaneous pressure and temperature measurement with polymer-coated fiber Bragg grating," Electron. Lett. 36, 564-566 (2000).
[CrossRef]

HITACH CABLE Rev. (1)

K. Fukuchi, S. Kojima, Y. Hishida, and S. Ishi, "Optical water-level sensors using fiber Bragg grating technology," HITACH CABLE Rev. 21,23-28 (2002).

IEEE Photon. Tech. Lett. (1)

W. T. Zhang, F. Li, Y. L. Liu, and L. H. Liu, "Ultrathin FBG Pressure Sensor With Enhanced Responsivity," IEEE Photon. Tech. Lett. 19, 1553-1555 (2007).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

Y. Zhang, D. Feng, Z. Liu, Z. Guo, X. Dong, K. S. Chiang, and B. C. B. Chu, "High-sensitivity pressure sensor using a shielded polymer-coated fiber grating," IEEE Photon. Technol. Lett. 13, 618-619 (2001).
[CrossRef]

J. Lightwave Technol. (1)

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele "Fiber Grating Sensors" J. Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

J. Opt. Laser Technol. (1)

Y. Zhao, C. Yub, and Y. Liao, " Differential FBG sensor for temperature-compensated high-pressure (or displacement) measurement," J. Opt. Laser Technol. 36, 39-42 (2004).
[CrossRef]

J.Lightwave Technol. (1)

A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J.Lightwave Technol. 15, 1442-1463 (1997).
[CrossRef]

Photon. Technol. Lett. (1)

T. Guo, Q. Zhao, Q. Dou, H. Zhang, L. Xue, G. Huang, and X. Dong, "Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam," Photon. Technol. Lett. 17, 2400-2402 (2005).
[CrossRef]

Proc. SPIE (1)

W. W. Morey, G. Meltz, and W. H. Glenn, "Fiber optic Bragg gratingsensors," Proc. SPIE 1169, 98-107 (1989).

Sens. Acctuators (1)

J. Lim, Q. P. Yang, B. E. Jones, and P. R Jackson, "DP flow sensor using optical fiber Bragg grating" Sens. Acctuators 92, 102-108 (2001).
[CrossRef]

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Figures (6)

Fig. 1.
Fig. 1.

The schematic (a) outer and (b) inner structure of differential pressure sensor.

Fig. 2.
Fig. 2.

Experimental set up of differential pressure sensor.

Fig. 3.
Fig. 3.

The wavelength shift versus temperature variation, (a) wavelength shift profile, (b) a nice linear curve of wavelength shift versus temperature variation.

Fig. 4.
Fig. 4.

The profile of the fiber Bragg gratings wavelength shift with differential pressure (cmH2O) variation at temperature (a)25 °C, PA<PB (b) 25 °C, PA>PB (c) 45 °C, PA<PB (b) 45 °C, PA>PB.

Fig. 5.
Fig. 5.

Position of two wavelength peaks at pressure PA-PB=20 and 50 cmH2O with temperature variation of 15–60°C in increment of 5°C.

Fig. 6.
Fig. 6.

Separations between reflected central wavelengths of FBGs versus differential pressure (PA-PB) at any temperature with a responsivity of 0.806nm/10cmH2O.

Tables (1)

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Table 1. parameters of sensor structure

Equations (6)

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ε P = C × P ,
ε f , H = ε P , H + ε T + ε s ,
ε f , L = ε P , L + ε T + ε s ,
Δ λ B = ( ( 1 P e ) ε + [ α + d n d T n ] Δ T ) λ B ,
Δ λ B , H Δ λ B , L λ B = ( 1 P e ) 2 C × Δ P ,
Δ λ B , H + Δ λ B , L 2 λ B = ( 1 P e ) ε s + ( 1 P e ) ( M + α + d n d T n ) Δ T .

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