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相关概念视频

Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...

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相关实验视频

Updated: Jun 23, 2026

A Tactile Automated Passive-Finger Stimulator TAPS
19:44

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Published on: June 3, 2009

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一个超声波原型的远程手动传感:指尖敲击案例.

Stefano Franceschini1, Maria Maddalena Autorino1, Michele Ambrosanio2

  • 1Department of Engineering, University of Napoli Parthenope, Centro Direzionale, 80143 Napoli, Italy.

Sensors (Basel, Switzerland)
|January 11, 2025
PubMed
概括

这项研究引入了一种新的非接触式超声波系统,用于精确测量手指敲击速度和位移. 这项技术提供客观的定量数据来评估神经退行性疾病的严重程度,改进了当前的视觉评估.

关键词:
多珀效应是多珀的效应.帕金森病是帕金森病的一种疾病.布拉迪基尼西亚是什么意思手指敲打着自己的手指.短距离遥感短距离遥感超声波超声波是指超声波的使用.

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Three-Dimensional Finger Motion Tracking during Needling: A Solution for the Kinematic Analysis of Acupuncture Manipulation
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Capturing Dynamic Finger Gesturing with High-resolution Surface Electromyography and Computer Vision
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相关实验视频

Last Updated: Jun 23, 2026

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科学领域:

  • 生物医学工程 生物医学工程
  • 神经学 神经学
  • 医学诊断 医学诊断 医学诊断

背景情况:

  • 指触是评估神经退行性疾病严重程度的临床标准.
  • 目前的评估依赖于对勃拉迪基尼西亚,刚性和震的主观视觉观察.
  • 患有神经退行性疾病的患者经常表现出点击率和手指位移的不稳定性.

研究的目的:

  • 开发和验证一种新的超声波无接触系统,用于定量指纹触摸分析.
  • 为了提供客观测量点击率和指位移.
  • 提高神经退行性疾病的临床评估.

主要方法:

  • 利用超声波声纳系统测量手部反射波的多普勒光谱.
  • 应用时间频率分析和专门的数据处理技术.
  • 进行了现实世界的测试,志愿者用手指敲击.

主要成果:

  • 该系统准确地测量了手指敲击率.
  • 该系统准确地测量了手指的移位.
  • 证明了对手部运动特征的定量评估的潜力.

结论:

  • 这种新型超声波系统提供了一种精确的,无接触的方法来量化手指敲击.
  • 这项技术可以提供客观数据,以协助对神经退行性疾病的临床评估.
  • 该系统已经在现实世界的测试场景中证明了可行性和准确性.