preamplifier

简明释义

英[priːˈæmplɪfaɪə]美[priˈæmpləˌfaɪər]

n. [电子] 前置放大器

英英释义

单词用法

同义词

反义词

例句

1.The 12-bit ADC in C8051F020 samples the EEG signal amplified by the preamplifier.

脑电信号通过前置放大器放大后，由C8051F 020内部的12位ADC进行采样。

2.The UV-16 is a 2-channel charge amplifier that is compatible with the input of piezoelectric accelerometers and accelerometers with built-in preamplifier.

的UV - 16是一种2通道电荷放大器，它是与压电加速度计和内置前置放大器加速度输入兼容。

3.Secondly, used a preamplifier to pre-amplify the integrated signal of induced charge detected by the CZT surface pixel arrays nuclear radiation detector.

设计带通滤波电路和比例放大电路，对前置放大电路的输出信号进行滤波、降噪和放大。

4.Therefore the capability of a competent preamplifier should meet the requirements of all aspects.

因此，一个合格的前置放大器必须满足各个性能方面的要求。

5.The preamplifier noise has been optimized and a new implementation method of the large feedback resistor has been proposed.

对前放的噪声进行了优化设计，提出了一种新的大反馈电阻实现方式。

6.These cards include a built in preamplifier and are controlled through a microchip processor.

这些卡中包含一个内置的前置放大器，是通过一个微芯片处理器来控制的。

7.Detector internal preamplifier after weak electric signal amplification, comparing to send alarm processing.

检测器内部的前置放大器将微弱的电场信号放大后，送报警器进行比较处理。

8.In modern electrometers, the preamplifier output terminal is such a point, and can be used to reduce the effect of cable leakage, as shown in Figure 2-5.

在现代的静电计中，前置放大器输出端就是这样的一个节点，并可以用来降低电缆泄漏的影响，如图2 - 5所示。

9.Without a proper preamplifier, the microphone's output can be too weak for recording.

没有合适的前置放大器，麦克风的输出可能对于录音来说太弱。

10.I connected the preamplifier to my turntable to enhance the vinyl playback experience.

我将前置放大器连接到我的黑胶唱机，以增强黑胶播放体验。

11.The recording engineer recommended a specific model of preamplifier for better signal clarity.

录音工程师推荐了一款特定型号的前置放大器以获得更好的信号清晰度。

12.To capture the subtle nuances of the guitar, I decided to use a high-quality preamplifier.

为了捕捉吉他的细微差别，我决定使用高质量的前置放大器。

13.The sound quality improved significantly after adding a preamplifier to my audio system.

在我的音频系统中添加了一个前置放大器后，音质显著改善。

作文

In the world of audio engineering, clarity and precision are paramount. One of the key components that contribute to achieving high-quality sound is the preamplifier. A preamplifier is an electronic device that amplifies low-level audio signals before they are sent to the main amplifier. This process is crucial because most audio sources, such as microphones and musical instruments, produce signals that are too weak to be processed effectively by a standard amplifier. By boosting these signals, a preamplifier ensures that the final output maintains fidelity and richness, allowing listeners to experience music and sound as intended by the artists.The function of a preamplifier can often go unnoticed by casual listeners, but for audiophiles and sound engineers, it is an essential piece of equipment. Without a quality preamplifier, the sound can become distorted or lost in noise, leading to a less enjoyable listening experience. For instance, when recording vocals, a singer's voice may not be loud enough to capture the nuances and subtleties. A good preamplifier will enhance these qualities, making the recording more vibrant and lifelike.There are various types of preamplifiers, each designed for specific applications. Some are built into audio interfaces or mixers, while others are standalone units that can be connected to different audio sources. Tube preamplifiers are popular among musicians for their warm sound, while solid-state preamplifiers are favored for their accuracy and reliability. The choice of preamplifier can significantly impact the overall sound quality, and many professionals invest considerable time in selecting the right model for their needs.Moreover, the role of a preamplifier extends beyond just amplifying signals. It also provides impedance matching, which is crucial for maximizing signal transfer between devices. When the impedance between the source and the load is mismatched, it can lead to signal loss and degradation. A well-designed preamplifier addresses this issue, ensuring that the audio signal remains strong and clear throughout the entire signal chain.In addition to its technical functions, the preamplifier can also influence the creative aspects of sound production. Many artists and producers use different preamplifiers to achieve specific tonal characteristics. For example, some might prefer the coloration provided by a vintage tube preamplifier, while others may seek the transparency of a modern solid-state unit. This versatility allows sound engineers to tailor their recordings to fit the desired aesthetic, making the preamplifier an invaluable tool in the studio.To conclude, the preamplifier plays a crucial role in audio production, serving as the bridge between low-level signals and powerful amplification. Its ability to enhance sound quality, provide impedance matching, and contribute to the creative process makes it an essential component in both live sound and studio recording environments. As technology continues to advance, the design and functionality of preamplifiers will likely evolve, but their importance in the world of audio engineering will remain steadfast. Understanding the significance of a preamplifier can help anyone appreciate the complexities of sound production and the artistry involved in creating high-fidelity audio experiences.

在音频工程领域，清晰度和精确度至关重要。一个关键组件对实现高质量声音的贡献就是前置放大器。前置放大器是一种电子设备，它在音频信号被送到主放大器之前，放大低电平音频信号。这个过程至关重要，因为大多数音频源，如麦克风和乐器，产生的信号太弱，无法被标准放大器有效处理。通过增强这些信号，前置放大器确保最终输出保持保真度和丰富性，使听众能够体验到艺术家所期待的音乐和声音。前置放大器的功能往往被普通听众忽视，但对于音响发烧友和声音工程师来说，它是必不可少的设备。没有高质量的前置放大器，声音可能会失真或在噪声中丢失，从而导致听觉体验不佳。例如，在录制人声时，歌手的声音可能不足以捕捉细微的差别和细腻之处。好的前置放大器将增强这些特质，使录音更加生动和真实。有各种类型的前置放大器，每种设计用于特定应用。有些内置于音频接口或混音器中，而其他则是独立单元，可以连接到不同的音频源。管式前置放大器因其温暖的声音受到音乐家的欢迎，而固态前置放大器则因其准确性和可靠性而受到青睐。前置放大器的选择可以显著影响整体音质，许多专业人士花费大量时间选择适合自己需求的型号。此外，前置放大器的作用不仅限于放大信号。它还提供阻抗匹配，这对最大化设备之间的信号传输至关重要。当源与负载之间的阻抗不匹配时，可能会导致信号损失和退化。设计良好的前置放大器解决了这个问题，确保音频信号在整个信号链中保持强劲和清晰。除了其技术功能外，前置放大器还可以影响声音制作的创意方面。许多艺术家和制作人使用不同的前置放大器来实现特定的音调特征。例如，有些人可能更喜欢复古管式前置放大器所提供的色彩，而另一些人可能寻求现代固态设备的透明度。这种多样性使声音工程师能够根据所需的美学量身定制他们的录音，使前置放大器成为录音室中不可或缺的工具。总之，前置放大器在音频制作中扮演着至关重要的角色，充当低电平信号与强大放大之间的桥梁。它增强音质、提供阻抗匹配并为创作过程做出贡献的能力，使其在现场声音和录音室环境中都是一个基本组成部分。随着技术的不断进步，前置放大器的设计和功能可能会演变，但它们在音频工程世界中的重要性将始终如一。理解前置放大器的重要性可以帮助任何人欣赏声音制作的复杂性以及创造高保真音频体验所涉及的艺术性。