Multi-optical-path switcher and use method thereof
By using a multi-path switch in the spectral instrument, the phase and optical path consistency between the sample optical path and the reference optical path is achieved by switching the fan ring holes on the disc and the adjustment of the stepper motor, which solves the problems of measurement instability and error of existing spectral instruments, and improves the stability and accuracy of measurement.
CN119717249APending Publication Date: 2025-03-28SHANDONG NON METALLIC MATERIAL RESEARCH INSTITUTE
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Patent Information
- Application Number
- CN202510037649.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
In the dual-optical measurement, it is difficult for existing spectral instruments to achieve phase and path consistency between sample optical paths and reference optical paths, resulting in measurement instability and error.
Method used
Using a multi-optical switch, a uniform fan ring hole is set on the switching disc and the rotation rate of the disc is adjusted by adjusting the stepper motor to program control switching of multiple optical paths to ensure that the phase and optical path of the sample optical path and the reference optical path are consistent.
Benefits of technology
The stability and accuracy of dual-optical path measurement in spectral instruments are achieved, system errors are reduced, and measurement consistency is ensured.
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Abstract
The invention discloses a multi-optical-path switcher and a using method thereof, and belongs to the field of analytical instrument measurement. The multi-optical-path switcher comprises an optical path switching unit and an optical fiber input unit, the optical path switching unit comprises a switching disc, a stepping motor, a photoelectric switch, a flange and a stepping motor support, the switching disc is provided with a plurality of sector ring holes and a positioning hole, and the switching disc is fixed to a rotating shaft of the stepping motor through the flange. The stepping motor and the photoelectric switch are respectively fixed on the stepping motor bracket; the optical fiber input unit is composed of an optical fiber light path disc, multi-core optical fibers, an optical fiber coupler and an optical fiber support, and the multi-core optical fibers are installed on the optical fiber light path disc through the optical fiber coupler and evenly distributed on the circumference with the same diameter as the center of the sector ring hole of the switching disc. Program-controlled switching of multiple light paths is achieved by adjusting the corresponding relation between the sector angles of the sector ring holes and the switching light paths, the switching frequency of the light paths is adjusted by adjusting the pulse frequency of the stepping motor, and the light path switching device has the advantages of being simple in structure, convenient to operate and the like.
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