analog signal

简明释义

模拟信号

英英释义

例句

1.When you connect a microphone, it sends an analog signal 模拟信号 to the amplifier.

当你连接麦克风时，它向放大器发送一个模拟信号 analog signal。

2.A vinyl record reproduces sound through analog signals 模拟信号.

黑胶唱片通过模拟信号 analog signals重现声音。

3.The temperature sensor outputs an analog signal 模拟信号 proportional to the temperature.

温度传感器输出与温度成比例的模拟信号 analog signal。

4.The old radio picks up an analog signal 模拟信号 that allows us to listen to music.

这台老旧的收音机接收到一个模拟信号 analog signal，让我们能够听到音乐。

5.In the past, televisions used analog signals 模拟信号 for broadcasting.

过去，电视使用模拟信号 analog signals进行广播。

作文

In the realm of electronics and communication, the term analog signal refers to a continuous signal that represents physical measurements. Unlike digital signals, which are discrete and binary, an analog signal can take on any value within a given range. This characteristic makes it particularly useful for representing real-world phenomena such as sound, light, temperature, and pressure. For example, when you speak into a microphone, your voice creates sound waves that are captured as an analog signal. This signal can then be amplified and transmitted over various media, allowing for effective communication. The importance of analog signals can be observed in various applications. In audio technology, vinyl records and cassette tapes utilize analog signals to reproduce sound. These formats capture the nuances of music in a way that many audiophiles appreciate. Even though digital formats have gained popularity due to their convenience and storage efficiency, the warm, rich sound produced by analog signals remains unmatched for some listeners. Moreover, analog signals are crucial in the field of telecommunications. Traditional telephone systems transmit voice as analog signals, which are then converted into electrical currents that travel over wires. Although modern systems have shifted towards digital transmission for improved clarity and reduced noise, understanding analog signals is essential for grasping the fundamentals of how these systems originally operated. In addition to audio applications, analog signals play a significant role in various scientific measurements. For instance, thermometers that use mercury or alcohol operate based on analog signals. The height of the liquid in the thermometer corresponds to the temperature of the environment, providing a continuous representation of temperature changes. Similarly, voltmeters and ammeters measure electrical quantities using analog signals, indicating the voltage or current in a circuit with an analog needle gauge. Despite the rise of digital technology, analog signals continue to be relevant in many industries. In medical devices, for instance, electrocardiograms (ECGs) record the electrical activity of the heart as analog signals. These signals are vital for diagnosing heart conditions, as they provide continuous data that can be analyzed for irregularities. However, analog signals are not without their challenges. One major drawback is their susceptibility to noise and interference. Since analog signals are continuous, even small disturbances can lead to significant distortions in the signal. This is why many modern systems have transitioned to digital signals, which are less prone to such issues. Digital signals convert information into binary code, allowing for more reliable transmission and processing. In conclusion, the concept of analog signal is fundamental to understanding various technologies and systems that we encounter daily. From music playback to communication and scientific measurement, analog signals have shaped the way we interact with the world around us. While digital technology continues to advance and dominate, the legacy of analog signals remains significant, reminding us of the beauty and complexity of continuous representations of information. Understanding analog signals not only enhances our appreciation for technology but also provides insights into the underlying principles that govern electronic communication and measurement.

在电子和通信领域，术语模拟信号指的是表示物理测量的连续信号。与离散的二进制数字信号不同，模拟信号可以在给定范围内取任意值。这一特性使其特别适合表示现实世界现象，如声音、光、温度和压力。例如，当你对着麦克风说话时，你的声音产生的声波被捕捉为模拟信号。这个信号随后可以被放大并通过各种媒介传输，从而实现有效的通信。模拟信号的重要性可以在各种应用中观察到。在音频技术中，黑胶唱片和磁带利用模拟信号来再现声音。这些格式以一种许多音响爱好者欣赏的方式捕捉音乐的细微差别。尽管数字格式因其便利性和存储效率而受到欢迎，但对于一些听众来说，模拟信号所产生的温暖、丰富的声音依然无与伦比。此外，模拟信号在电信领域也至关重要。传统电话系统将声音作为模拟信号传输，然后将其转换为在电线上传输的电流。尽管现代系统已转向数字传输，以提高清晰度和减少噪声，但理解模拟信号对于掌握这些系统最初如何运作的基础知识是必不可少的。除了音频应用，模拟信号在各种科学测量中也发挥着重要作用。例如，使用水银或酒精的温度计基于模拟信号工作。温度计中液体的高度对应于环境温度，提供了温度变化的连续表示。类似地，伏特计和安培计使用模拟信号测量电量，通过模拟指针仪表指示电路中的电压或电流。尽管数字技术的兴起，模拟信号在许多行业中仍然相关。在医疗设备中，例如，心电图（ECG）记录心脏的电活动作为模拟信号。这些信号对于诊断心脏病至关重要，因为它们提供了可分析不规则性的连续数据。然而，模拟信号并非没有挑战。一个主要缺点是它们易受噪声和干扰的影响。由于模拟信号是连续的，即使是微小的干扰也可能导致信号的显著失真。这就是为什么许多现代系统已经转向数字信号，后者更不容易受到此类问题的影响。数字信号将信息转换为二进制代码，从而实现更可靠的传输和处理。总之，模拟信号的概念是理解我们每天遇到的各种技术和系统的基础。从音乐播放到通信和科学测量，模拟信号塑造了我们与周围世界的互动方式。虽然数字技术持续进步并占据主导地位，但模拟信号的遗产仍然具有重要意义，提醒我们信息连续表示的美丽和复杂性。理解模拟信号不仅增强了我们对技术的欣赏，也为我们提供了关于电子通信和测量背后基本原理的深入见解。