keyed amplifier

简明释义

键控式放大器

英英释义

例句

1.The engineer used a keyed amplifier to boost the signal strength in the communication system.

工程师使用了一个键控放大器来增强通信系统中的信号强度。

2.The keyed amplifier is essential for ensuring clear transmission in radio systems.

在无线电系统中，键控放大器对于确保清晰的传输至关重要。

3.For the laboratory experiment, we calibrated the keyed amplifier to enhance the output signal.

为了实验室实验，我们校准了键控放大器以增强输出信号。

4.During the testing phase, the team discovered that the keyed amplifier had a significant impact on performance.

在测试阶段，团队发现键控放大器对性能有显著影响。

5.In our audio project, we implemented a keyed amplifier for better sound quality.

在我们的音频项目中，我们实现了一个键控放大器以获得更好的音质。

作文

In the realm of electronics and communication systems, the term keyed amplifier refers to a specialized type of amplifier that is designed to be activated or deactivated based on an external control signal. This functionality makes it particularly useful in various applications such as radio transmission, audio processing, and signal conditioning. Understanding how a keyed amplifier operates can provide insights into its significance in modern technology.A keyed amplifier typically consists of a standard amplifier circuit with an additional control mechanism that allows for its operation to be contingent upon a specific input signal. When the control signal is present, the amplifier becomes active, boosting the strength of the incoming signal. Conversely, when the control signal is absent, the amplifier remains inactive, preventing any amplification from occurring. This on-off functionality is crucial in scenarios where signal integrity and power management are vital.One of the primary advantages of using a keyed amplifier is its ability to enhance signal clarity and reduce noise. In radio communications, for instance, a keyed amplifier can selectively amplify only the desired signals while ignoring background noise. This selective amplification is essential for maintaining clear communication channels, especially in crowded frequency bands where interference is common.Moreover, the use of a keyed amplifier can lead to significant energy savings. By ensuring that the amplifier is only active when needed, it minimizes unnecessary power consumption, which is particularly important in battery-operated devices. This feature not only extends the battery life of portable electronics but also contributes to more sustainable energy usage in larger systems.In practical applications, a keyed amplifier can be found in various devices, including walkie-talkies, wireless microphones, and even sophisticated audio mixing consoles. For example, in a microphone system, the amplifier may be keyed to activate only when a user speaks into the microphone. This prevents unwanted sounds from being amplified and ensures that the output remains clean and focused.The design and implementation of a keyed amplifier can vary depending on the specific requirements of the application. Some designs may incorporate advanced features such as automatic gain control, which adjusts the amplification level based on the strength of the incoming signal. Others may utilize digital control signals for precise operation, allowing for seamless integration into complex electronic systems.As technology continues to evolve, the role of the keyed amplifier is likely to expand. With the increasing demand for efficient communication systems and high-quality audio processing, engineers and designers will continue to explore innovative ways to leverage this technology. The ongoing research and development in this field promise exciting advancements that could further enhance the performance and capabilities of keyed amplifiers.In conclusion, the keyed amplifier plays a vital role in modern electronics, offering enhanced signal management, energy efficiency, and improved communication quality. Its unique ability to operate based on external control signals makes it an indispensable component in various applications. As we move forward, understanding and utilizing the principles behind keyed amplifiers will be essential for anyone involved in electronics and communication technologies.

在电子和通信系统领域，术语keyed amplifier指的是一种专门设计的放大器，它的激活或停用是基于外部控制信号。这种功能使其在无线电传输、音频处理和信号调节等各种应用中尤为有用。理解keyed amplifier的工作原理可以提供对其在现代技术中重要性的洞察。keyed amplifier通常由一个标准放大电路和一个附加控制机制组成，该机制允许其操作依赖于特定的输入信号。当控制信号存在时，放大器变为活动状态，增强输入信号的强度。相反，当控制信号缺失时，放大器保持不活动状态，防止任何放大发生。这种开-关功能在信号完整性和电源管理至关重要的场景中尤为重要。使用keyed amplifier的主要优点之一是能够增强信号清晰度并减少噪声。例如，在无线电通信中，keyed amplifier可以选择性地放大所需的信号，同时忽略背景噪声。这种选择性放大对于维护清晰的通信通道至关重要，尤其是在干扰普遍的拥挤频率带中。此外，使用keyed amplifier还可以显著节省能源。通过确保放大器仅在需要时处于活动状态，最大限度地减少不必要的功耗，这在电池供电的设备中特别重要。这个特性不仅延长了便携式电子设备的电池寿命，还有助于在更大系统中实现更可持续的能源使用。在实际应用中，keyed amplifier可以在各种设备中找到，包括对讲机、无线麦克风甚至复杂的音频混音控制台。例如，在麦克风系统中，放大器可能被设置为仅在用户对麦克风说话时激活。这防止了不必要的声音被放大，并确保输出保持清晰和集中。keyed amplifier的设计和实施可以根据应用的具体要求而有所不同。一些设计可能会结合自动增益控制等先进功能，根据输入信号的强度调整放大水平。其他设计可能利用数字控制信号进行精确操作，从而实现与复杂电子系统的无缝集成。随着技术的不断发展，keyed amplifier的角色可能会扩展。随着对高效通信系统和高质量音频处理需求的增加，工程师和设计师将继续探索利用这一技术的创新方式。该领域的持续研究和开发承诺带来令人兴奋的进展，可能进一步提升keyed amplifier的性能和能力。总之，keyed amplifier在现代电子设备中发挥着至关重要的作用，提供增强的信号管理、能源效率和改善的通信质量。其基于外部控制信号操作的独特能力使其成为各种应用中不可或缺的组件。随着我们向前发展，理解和利用keyed amplifier背后的原理对于任何参与电子和通信技术的人来说都是至关重要的。