ARM-based integrated polarization maintaining fiber axis positioning instrument

A polarization-maintaining optical fiber and optical fiber technology, applied in the direction of polarized optical fiber, cladding optical fiber, etc., to achieve the effect of fast and accurate auto-focus, fast computing speed, and small size

Inactive Publication Date: 2015-05-13
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of the image processing system's requirements for focus accuracy, speed and automation, auto focus has gradually replaced manual focus, but there is still a lot of room for improvement in focus accuracy, stability and speed

Method used

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  • ARM-based integrated polarization maintaining fiber axis positioning instrument
  • ARM-based integrated polarization maintaining fiber axis positioning instrument
  • ARM-based integrated polarization maintaining fiber axis positioning instrument

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Embodiment Construction

[0032] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0033] like figure 1 As shown, the ARM-based integrated polarization-maintaining fiber optic axis alignment instrument includes an image acquisition unit, an image processing and control unit 1, a motion actuator and a human-computer interaction unit.

[0034] The image acquisition unit includes a light source 7, a microscopic objective lens 9, a lens barrel 10, a CMOS industrial camera 11 and a microscopic camera 8;

[0035] The light source 7 obliquely illuminates the polarization-maintaining optical fiber 5 stripped of the coating at an angle of 30°-60° forward, the microscopic objective lens 9 and the polarization-maintaining optical fiber 5 are coaxial, and the CMOS camera 11 is connected to the microscopic objective lens 9 through the lens barrel 10. Micro camera 8 is fixed above the polarization maintaining fiber.

[0036] The motion actuator...

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Abstract

The invention discloses an ARM-based integrated polarization maintaining fiber axis positioning instrument. The instrument comprises an image acquisition unit, an image processing and control unit, movement of the actuator and interactive unit; image acquisition unit includes a light source, a microscope objective lens barrel, a complementary metal oxide semiconductor (CMOS) industrial cameras and micro-camera; movement of the actuator comprises a fiber rotator, manual displacement units, the displacement of the electric station, fiber pad, a first motion control board and a second motion control board; interactive unit including a touch screen; an image processing and control unit comprises a microprocessor, memory module, a communication interface, a display module, debug and power modules; ARM as the processor uses the touch screen as the user interface, small size, low cost, interactive and friendly, the advantages of fast speed.

Description

technical field [0001] The invention belongs to the technical field of optical fiber sensors and relates to an ARM-based integrated polarization-maintaining optical fiber axis fixer. Background technique [0002] Polarization-maintaining fiber is widely used in various fields of fiber optic sensing because it can keep the polarization state of the beam propagating along the polarization axis unchanged. When there is an axis error in the connection between the polarization maintaining fiber and other polarization maintaining devices, polarization coupling will occur, and its polarization maintaining performance will be deteriorated. Therefore, the detection and positioning of the polarization axis of the polarization maintaining fiber is a key technology in the application of polarization maintaining fibers. The polarization axis detection technology of polarization-maintaining optical fiber mainly includes two methods: longitudinal observation and lateral observation. °~1.5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/024
CPCG02B6/024
Inventor 冯迪黄怀波翁晓泉刘振华宋凝芳
Owner BEIHANG UNIV
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