Temperature and hydrogen combined sensing probe, sensing system and composite interferometric spectral demodulation method
By using a cascaded optical microcavity structure for temperature and hydrogen sensing and a composite interference spectral demodulation method, the signal analysis problem in the dual Fabry-Perot cavity structure was solved, enabling high-precision synchronous measurement of temperature and hydrogen concentration, and improving the stability and accuracy of the system.
CN122329414APending Publication Date: 2026-07-03ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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Patent Information
- Application Number
- CN202610778670.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-03
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Figure CN122329414A_ABST
Abstract
This application discloses a temperature and hydrogen composite sensing probe, a sensing system, and a composite interference spectrum demodulation method. The composite sensing probe includes a temperature sensing microcavity and a hydrogen sensing microcavity cascaded together. The temperature sensing microcavity is formed from a monolithic dielectric material, while the hydrogen sensing microcavity has a cavity and a hydrogen-sensitive surface located at its end face. One end of the cavity is integrally connected to the temperature sensing microcavity. The light incident end face of the temperature sensing microcavity, the interface between the monolithic dielectric material and the cavity, and the inner surface of the hydrogen-sensitive surface constitute three reflecting surfaces, enabling the incident broadband light to form a composite interference spectrum carrying temperature and hydrogen information.
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