Elrawashdeh Z, Prelle C, Lamarque F, Revel P, Galland S. Optimizing Algorithm for Existing Fiber-Optic Displacement Sensor Performance.
SENSORS (BASEL, SWITZERLAND) 2024;
24:448. [PMID:
38257540 PMCID:
PMC10819725 DOI:
10.3390/s24020448]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/29/2023] [Accepted: 01/01/2024] [Indexed: 01/24/2024]
Abstract
This paper describes the optimal design of a miniature fiber-optic linear displacement sensor. It is characterized by its ability to measure displacements along a millimetric range with sub-micrometric resolution. The sensor consists of a triangular reflective grating and two fiber-optic probes. The measurement principle of the sensor is presented. The design of the sensor's triangular grating has been geometrically optimized by considering the step angle of the grating to enhance the sensor's resolution. The optimization method revealed a global optimum at which the highest resolution is obtained.
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