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相关概念视频

Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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Updated: Jul 6, 2025

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System
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便携式非接触式校准器 便携式非接触式校准器

Konthee Boonmeeprakob, Arinchaya Phanpumnak, Chutintorn Punwong

    Applied optics
    |January 4, 2024
    PubMed
    概括
    此摘要是机器生成的。

    这种便携式光学计可以快速准确地测量透明材料厚度,无需接触. 它使用激光干扰,不需要对样品的先验知识.

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 材料科学 材料科学 材料科学
    • 计量学 计量学 计量学

    背景情况:

    • 精确的厚度测量对于制造中的质量控制至关重要.
    • 对透明材料的现有方法可能很复杂或需要物理接触.
    • 非接触式,实时测量解决方案是非常理想的.

    研究的目的:

    • 开发一种便携式的非接触式光学计,用于精确测量薄透明样品的厚度.
    • 为了证明设备的能力而不需要样本的折射率.
    • 评估其对实时质量控制应用的潜力.

    主要方法:

    • 采用激光干扰图案,由从透明样品的顶部和底部表面反射的光产生.
    • 采用线性传感器阵列来捕获干扰模式.
    • 使用Arduino微控制器进行数据分析,以快速确定厚度.

    主要成果:

    • 便携式光学计实现了对玻璃盖片和透明塑料板的精确厚度测量.
    • 每个样本的测量都在几分之一秒内完成.
    • 该系统证明了对样本的折射率的独立性,以获得准确的结果.

    结论:

    • 开发的便携式光学计为厚度测量提供了快速,准确和非接触式的解决方案.
    • 它在没有先验折射率信息的情况下运行的能力提高了它的多功能性.
    • 该设备显示了透明薄膜制造和涂层过程中实时质量控制的巨大潜力.