parametric amplifier

简明释义

参量放大器

英英释义

例句

1.The parametric amplifier 参数放大器 is widely used in radio frequency applications.

在射频应用中，参数放大器 parametric amplifier 被广泛使用。

2.A parametric amplifier 参数放大器 can be used to improve the performance of a radar system.

可以使用参数放大器 parametric amplifier来提高雷达系统的性能。

3.The design of a parametric amplifier 参数放大器 involves careful consideration of non-linear materials.

设计参数放大器 parametric amplifier时，需要仔细考虑非线性材料。

4.In optical communication, a parametric amplifier 参数放大器 can enhance signal quality over long distances.

在光通信中，参数放大器 parametric amplifier 可以提高长距离信号的质量。

5.Engineers often choose a parametric amplifier 参数放大器 for its high gain and low noise characteristics.

工程师们常常选择参数放大器 parametric amplifier，因为它具有高增益和低噪声特性。

作文

In the realm of electronics and signal processing, the term parametric amplifier refers to a type of amplifier that utilizes the variations in the parameters of a nonlinear circuit element to amplify a signal. This device is particularly notable for its ability to achieve high gain while maintaining low noise levels, making it an essential component in various applications, including radio frequency (RF) communications and quantum optics. The fundamental principle behind a parametric amplifier involves the modulation of the circuit's reactance, which is typically done using a pump signal. By applying this pump signal, the amplifier can transfer energy from the pump to the input signal, resulting in amplification. Unlike traditional amplifiers that rely on the linear characteristics of their components, parametric amplifiers exploit the nonlinearity of certain materials or circuits. A common example is the use of a nonlinear inductor or capacitor, where the reactance changes with the voltage or current applied. This unique property allows for the amplification of weak signals without introducing significant distortion, which is crucial in sensitive applications such as astrophysics and medical imaging. One of the key advantages of parametric amplifiers is their ability to operate at very low temperatures, where thermal noise is minimized. This characteristic makes them ideal for use in ultra-sensitive detection systems, such as those used in cryogenic environments. Additionally, parametric amplifiers can be designed to work over a wide range of frequencies, allowing them to be tailored for specific applications, whether in telecommunications or scientific research.The development of parametric amplifiers has significantly advanced the field of quantum computing and quantum information processing. These devices can amplify quantum signals without adding noise, which is a critical requirement for maintaining the integrity of quantum states. Researchers are exploring various configurations of parametric amplifiers, including traveling-wave designs and integrated photonic circuits, to enhance their performance further.In conclusion, the parametric amplifier stands out as a remarkable innovation in the field of electronics. Its ability to amplify signals with minimal noise and distortion has made it invaluable in numerous high-tech applications. As technology continues to evolve, the role of parametric amplifiers is likely to expand, paving the way for new advancements in communication, sensing, and quantum technologies.

在电子和信号处理领域，术语参数放大器指的是一种利用非线性电路元件参数变化来放大信号的放大器。这种设备因其能够在保持低噪声水平的同时实现高增益而特别引人注目，使其成为无线电频率（RF）通信和量子光学等各种应用中的重要组成部分。参数放大器的基本原理涉及电路反应性的调制，这通常是通过使用泵信号来完成的。通过施加这个泵信号，放大器可以将能量从泵转移到输入信号，从而实现放大。与依赖于组件线性特性的传统放大器不同，参数放大器利用某些材料或电路的非线性特性。一个常见的例子是使用非线性电感器或电容器，其中反应性随着施加的电压或电流而变化。这一独特特性允许在不引入显著失真的情况下放大微弱信号，这在天体物理学和医学成像等敏感应用中至关重要。参数放大器的一个关键优势是能够在非常低的温度下工作，此时热噪声最小化。这一特性使它们在超灵敏检测系统中理想，例如那些用于低温环境的系统。此外，参数放大器可以设计为在广泛的频率范围内工作，使其能够针对特定应用进行定制，无论是在电信还是科学研究中。参数放大器的发展显著推动了量子计算和量子信息处理领域的进步。这些设备可以在不增加噪声的情况下放大量子信号，这是保持量子态完整性的关键要求。研究人员正在探索各种参数放大器的配置，包括行波设计和集成光子电路，以进一步增强其性能。总之，参数放大器作为电子领域的一项卓越创新脱颖而出。其以最小噪声和失真的方式放大信号的能力使其在众多高科技应用中不可或缺。随着技术的不断发展，参数放大器的角色可能会扩大，为通信、传感和量子技术的新进展铺平道路。