parasitic noise

简明释义

寄生噪声

英英释义

例句

1.During the experiment, researchers noted that parasitic noise 寄生噪声 could lead to inaccurate readings.

在实验过程中，研究人员注意到寄生噪声 parasitic noise可能导致不准确的读数。

2.The audio engineer had to filter out the parasitic noise 寄生噪声 from the recording to improve sound quality.

音频工程师必须从录音中滤除寄生噪声 parasitic noise以提高音质。

3.To achieve clearer images, the scientist minimized parasitic noise 寄生噪声 in the imaging process.

为了获得更清晰的图像，科学家在成像过程中最小化了寄生噪声 parasitic noise。

4.The technician used a spectrum analyzer to identify sources of parasitic noise 寄生噪声 in the system.

技术员使用频谱分析仪来识别系统中的寄生噪声 parasitic noise来源。

5.In the circuit design, parasitic noise 寄生噪声 can affect the performance of sensitive components.

在电路设计中，寄生噪声 parasitic noise可能会影响敏感元件的性能。

作文

In the realm of electronics and signal processing, the term parasitic noise refers to unwanted disturbances that can interfere with the performance of a device or system. This noise is often the result of various factors, including electromagnetic interference, thermal fluctuations, and even mechanical vibrations. Understanding parasitic noise is crucial for engineers and designers who aim to create reliable and efficient electronic systems.One of the primary sources of parasitic noise is electromagnetic interference (EMI). This occurs when an external electromagnetic field disrupts the signals within a circuit. For example, devices such as motors, transformers, and radio transmitters can emit electromagnetic waves that affect nearby electronics. To mitigate this type of noise, engineers often employ shielding techniques, such as enclosing sensitive components in conductive materials that block unwanted signals.Another contributor to parasitic noise is thermal noise, which arises from the random motion of electrons within a conductor due to temperature. As the temperature increases, the level of thermal agitation also rises, resulting in more significant noise levels. This phenomenon is particularly relevant in high-frequency applications, where even small amounts of parasitic noise can lead to substantial errors in signal processing. To counteract thermal noise, designers may choose components made from materials with lower resistance or implement cooling systems to maintain optimal operating temperatures.Mechanical vibrations can also introduce parasitic noise into electronic systems. For instance, vibrations from nearby machinery can induce fluctuations in the electrical signals of sensitive equipment. This type of noise is especially problematic in precision instruments, where accuracy is paramount. Engineers often use vibration-damping materials and isolation techniques to minimize the impact of these unwanted disturbances.The presence of parasitic noise can significantly affect the overall performance of electronic systems. For instance, in communication systems, excessive noise can lead to signal degradation, making it difficult for receivers to accurately interpret transmitted information. In audio equipment, parasitic noise can manifest as hissing or humming sounds, detracting from the listening experience. Therefore, understanding and managing parasitic noise is essential for achieving high-quality performance in various applications.To address the challenges posed by parasitic noise, engineers employ several strategies. One common approach is the use of filters, which are designed to allow desired signals to pass through while blocking unwanted noise. Filters can be passive or active, depending on their design and application. Additionally, careful circuit layout and grounding techniques can help reduce the susceptibility of circuits to parasitic noise. By creating proper ground planes and minimizing loop areas, engineers can enhance the immunity of their designs against external disturbances.In conclusion, parasitic noise plays a significant role in the performance of electronic systems. By understanding its sources and implementing effective mitigation strategies, engineers can enhance the reliability and efficiency of their designs. As technology continues to evolve, the importance of addressing parasitic noise will only grow, making it a critical area of focus for future innovations in electronics and signal processing.

在电子和信号处理领域，术语寄生噪声指的是可能干扰设备或系统性能的 unwanted 干扰。此噪声通常是由多种因素造成的，包括电磁干扰、热波动以及甚至机械振动。理解寄生噪声对工程师和设计师至关重要，他们旨在创造可靠且高效的电子系统。寄生噪声的主要来源之一是电磁干扰（EMI）。当外部电磁场干扰电路内的信号时，就会发生这种情况。例如，电动机、变压器和无线电发射器等设备可以发出电磁波，影响附近的电子设备。为了减轻这种类型的噪声，工程师通常采用屏蔽技术，例如将敏感组件封闭在能够阻挡 unwanted 信号的导电材料中。寄生噪声的另一个来源是热噪声，它源于由于温度导致导体内电子的随机运动。随着温度的升高，热波动的水平也会上升，从而导致噪声水平显著增加。这一现象在高频应用中特别相关，因为即使是少量的寄生噪声也会导致信号处理中的重大错误。为了对抗热噪声，设计师可能会选择由低电阻材料制成的组件，或实施冷却系统以保持最佳操作温度。机械振动也可以将寄生噪声引入电子系统。例如，来自附近机械的振动可能会导致敏感设备电信号的波动。这种类型的噪声在精密仪器中尤其成问题，因为准确性至关重要。工程师通常使用减震材料和隔离技术来最小化这些 unwanted 干扰的影响。寄生噪声的存在可能会显著影响电子系统的整体性能。例如，在通信系统中，过多的噪声可能导致信号降解，使接收器难以准确解读传输的信息。在音频设备中，寄生噪声可能表现为嘶嘶声或嗡嗡声，影响听觉体验。因此，理解和管理寄生噪声对在各种应用中实现高质量性能至关重要。为了应对寄生噪声带来的挑战，工程师采取了几种策略。一种常见的方法是使用滤波器，这些滤波器旨在允许所需信号通过，同时阻挡 unwanted 噪声。滤波器可以是被动的或主动的，具体取决于它们的设计和应用。此外，仔细的电路布局和接地技术可以帮助减少电路对寄生噪声的敏感性。通过创建适当的接地平面和最小化环路面积，工程师可以增强其设计对外部干扰的免疫力。总之，寄生噪声在电子系统的性能中扮演着重要角色。通过理解其来源并实施有效的缓解策略，工程师可以提高其设计的可靠性和效率。随着技术的不断发展，解决寄生噪声的重要性只会增加，使其成为未来电子和信号处理创新的关键关注领域。