impedance matching

简明释义

阻抗匹配

英英释义

例句

1.Without proper impedance matching 阻抗匹配, your transmission line could suffer from significant power loss.

如果没有适当的impedance matching 阻抗匹配，你的传输线可能会遭受显著的功率损失。

2.In audio engineering, achieving impedance matching 阻抗匹配 ensures that the speaker and amplifier work efficiently together.

在音频工程中，实现impedance matching 阻抗匹配确保扬声器和放大器高效协同工作。

3.In telecommunications, impedance matching 阻抗匹配 is crucial for minimizing signal degradation over long distances.

在电信中，impedance matching 阻抗匹配对最小化长距离信号衰减至关重要。

4.The design of the circuit included impedance matching 阻抗匹配 components to ensure maximum power transfer.

电路的设计包括impedance matching 阻抗匹配元件，以确保最大功率传输。

5.The radio technician explained how impedance matching 阻抗匹配 can improve signal strength and reduce reflections.

无线电技术员解释了如何通过impedance matching 阻抗匹配提高信号强度并减少反射。

作文

Impedance matching is a crucial concept in the field of electronics and telecommunications. It refers to the practice of making the output impedance of one device equal to the input impedance of another device, allowing maximum power transfer between them. This principle is essential for ensuring that signals are transmitted efficiently without significant loss or distortion. In various applications, such as audio systems, radio transmitters, and antennas, achieving proper impedance matching (阻抗匹配) can greatly enhance performance and reliability.When two electronic components are connected, they each have their own impedance, which is a measure of how much they resist the flow of electric current. If the impedances are not matched, some of the signal can be reflected back rather than transmitted forward. This reflection can lead to a decrease in signal strength and quality, which is especially problematic in high-frequency applications where even small losses can have a significant impact.One common example of impedance matching (阻抗匹配) is found in audio equipment. For instance, when connecting a microphone to a mixer, it is important that the microphone's output impedance matches the input impedance of the mixer. If they are mismatched, the audio signal can become weak and distorted, resulting in poor sound quality. To avoid this, audio engineers often use transformers or other devices designed specifically to achieve proper impedance matching (阻抗匹配).In radio frequency applications, impedance matching (阻抗匹配) becomes even more critical. Antennas, for example, must be matched to the transmission line and the transmitter to ensure that maximum power is radiated into the air. Without proper matching, signals can be lost as heat or reflected back towards the transmitter, which can cause damage over time. Engineers use various techniques, such as stub tuning or the use of matching networks, to achieve effective impedance matching (阻抗匹配) in these situations.Moreover, in the realm of circuit design, impedance matching (阻抗匹配) plays a vital role in preventing signal degradation. When designing circuits for high-speed data transmission, such as in computer networks, ensuring that all components are properly matched is key to maintaining integrity and reducing errors. This involves careful calculation and sometimes the incorporation of specific components like resistors or capacitors to achieve the desired impedance levels.In conclusion, impedance matching (阻抗匹配) is a fundamental aspect of electronic design and communication systems. By ensuring that the impedances of connected devices are aligned, engineers can maximize power transfer, improve signal quality, and enhance overall system performance. Whether in audio applications, radio frequency communications, or high-speed data circuits, the importance of impedance matching (阻抗匹配) cannot be overstated. As technology continues to advance, the techniques and methods used to achieve effective matching will also evolve, but the underlying principle will remain a cornerstone of electrical engineering.

阻抗匹配是电子学和电信领域的一个关键概念。它指的是使一个设备的输出阻抗等于另一个设备的输入阻抗的做法，从而实现最大功率传输。这一原则对于确保信号高效传输而没有显著损失或失真至关重要。在音频系统、无线电发射器和天线等各种应用中，实现适当的阻抗匹配（impedance matching）可以大大提高性能和可靠性。当两个电子元件连接时，它们各自具有自己的阻抗，这是衡量它们抵抗电流流动能力的一个指标。如果阻抗不匹配，一部分信号可能会反射回去，而不是向前传输。这种反射可能导致信号强度和质量下降，这在高频应用中尤其成问题，因为即使是小的损失也会产生显著影响。阻抗匹配（impedance matching）的一个常见例子出现在音频设备中。例如，在将麦克风连接到混音器时，麦克风的输出阻抗与混音器的输入阻抗匹配是很重要的。如果它们不匹配，音频信号可能会变得微弱和失真，导致音质差。为了避免这种情况，音频工程师通常使用变压器或其他专门设计的设备来实现适当的阻抗匹配（impedance matching）。在射频应用中，阻抗匹配（impedance matching）变得更加关键。例如，天线必须与传输线和发射机匹配，以确保最大功率辐射到空气中。如果没有适当的匹配，信号可能会作为热量损失或反射回发射机，这可能会随着时间的推移造成损坏。工程师使用多种技术，如支路调谐或使用匹配网络，在这些情况下实现有效的阻抗匹配（impedance matching）。此外，在电路设计领域，阻抗匹配（impedance matching）在防止信号退化方面发挥着至关重要的作用。在设计用于高速数据传输的电路时，例如在计算机网络中，确保所有组件正确匹配是保持完整性和减少错误的关键。这涉及到仔细的计算，有时还需要结合特定的元件，如电阻器或电容器，以达到所需的阻抗水平。总之，阻抗匹配（impedance matching）是电子设计和通信系统的基本方面。通过确保连接设备的阻抗对齐，工程师可以最大化功率传输，提高信号质量，并增强整体系统性能。无论是在音频应用、射频通信还是高速数据电路中，阻抗匹配（impedance matching）的重要性都不容忽视。随着技术的不断进步，用于实现有效匹配的技术和方法也将不断发展，但其基本原则将始终是电气工程的基石。