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Low-cost, large-visual-field pyroelectric infrared linear device.

Xingyu Yang, Yuanqing Wang

    Applied Optics
    |October 20, 2017
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a low-cost pyroelectric infrared linear device using a novel multisensor design. Bending the multisensor significantly expands the visual field, enhancing detection capabilities beyond traditional devices.

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    Area of Science:

    • Sensor Technology
    • Materials Science

    Background:

    • Traditional pyroelectric infrared linear devices have limitations in visual field angle.
    • Developing cost-effective and high-performance infrared detection systems is crucial.

    Purpose of the Study:

    • To report a low-cost, large-visual-field pyroelectric infrared linear device using a multisensor.
    • To investigate the fabrication process, microstructure, electric properties, and performance of the pyroelectric sensor.
    • To enhance the detection capability by increasing the visual field angle.

    Main Methods:

    • Fabrication of a multisensor by connecting five unit sensors on a flexible polyethylene terephthalate film substrate.
    • Studying the pyroelectric sensor fabrication process, microstructure, and electric properties.
    • Bending the multisensor to a specific angle to achieve a larger visual field.

    Main Results:

    • A pyroelectric infrared linear device with a visual field angle exceeding 180° was successfully fabricated.
    • The device's visual field is significantly larger than traditional linear devices (132°).
    • The multisensor design offers improved detection capability at a lower cost.

    Conclusions:

    • The developed low-cost, large-visual-field pyroelectric infrared linear device demonstrates enhanced detection capabilities.
    • The novel multisensor approach, utilizing a bent flexible substrate, effectively expands the visual field.
    • This technology presents a cost-effective alternative to existing infrared linear devices.