Chinese Optics Letters, Volume. 12, Issue 11, 111401(2014)

Low-cost and miniature all-silica Fabry–Perot pressure sensor for intracranial pressure measurement

Yuting Li1, Wentao Zhang1, Zhaogang Wang1, Hongbin Xu2, Jing Han2, and Fang Li1
Author Affiliations
  • 1Optoelectronics System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • 2Key Laboratory of Structure Health Monitoring and Control of Hebei Province, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • show less

    The monitoring of increased intracranial pressure (ICP) is necessary in the diagnosis and treatment of patients with neurological disease because it can provide an insight into the mechanism of the head injury. In this letter, we develop a novel miniature Fabry–Perot (F-P) sensor for ICP measurement. The proposed sensor is fabricated by using a commercially available fusion splicer and a fiber cleaver, by which many difficult art problems involved in fabrication are solved and the online monitoring of the F-P cavity is actualized. The sensor exhibits a linear response to the applied pressure over the range of 0–25 kPa (ample for ICP measurement), with a sensitivity of 10.18 nm/kPa, a resolution of 0.1 kPa, and a reduced thermal sensitivity of 0.068 nm/°C, which shows it can meet the requirements of ICP measurement.

    Tools

    Get Citation

    Copy Citation Text

    Yuting Li, Wentao Zhang, Zhaogang Wang, Hongbin Xu, Jing Han, Fang Li. Low-cost and miniature all-silica Fabry–Perot pressure sensor for intracranial pressure measurement[J]. Chinese Optics Letters, 2014, 12(11): 111401

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: May. 2, 2014

    Accepted: Jul. 25, 2014

    Published Online: Oct. 31, 2014

    The Author Email:

    DOI:10.3788/col201412.111401

    Topics