crystal receiver

简明释义

晶体耳机

英英释义

例句

1.During the workshop, participants learned how to assemble a crystal receiver using basic components.

在研讨会上，参与者学习了如何使用基本组件组装一个水晶接收器。

2.You can find instructions online to create your own crystal receiver for listening to vintage broadcasts.

你可以在网上找到制作自己水晶接收器以收听复古广播的说明。

3.The crystal receiver is a popular choice among amateur radio enthusiasts.

对于业余无线电爱好者来说，水晶接收器是一个受欢迎的选择。

4.He built a simple crystal receiver from scratch as part of his science project.

他作为科学项目的一部分，从零开始制作了一个简单的水晶接收器。

5.The old radio in the attic uses a crystal receiver to pick up AM signals.

阁楼里的旧收音机使用水晶接收器来接收AM信号。

作文

In the world of radio technology, the term crystal receiver refers to a simple type of radio receiver that was widely used in the early 20th century. This innovative device played a crucial role in the development of wireless communication and laid the groundwork for modern radio technology. A crystal receiver is characterized by its use of a crystal detector, typically made from materials such as galena or silicon, which converts radio waves into audio signals. This conversion process is what enables listeners to hear broadcasts without the need for complex electronic components. One of the most fascinating aspects of the crystal receiver is its simplicity. Unlike contemporary receivers that rely on batteries or external power sources, early models were often powered solely by the energy of the radio waves they received. This feature made them incredibly popular among hobbyists and amateur radio enthusiasts. They could be built at home with minimal tools and materials, allowing many people to experience the magic of radio for the first time. The operation of a crystal receiver involves a few key components: the antenna, the crystal detector, and the headphones or speaker. The antenna captures radio waves, which are then directed to the crystal detector. The crystal acts as a rectifier, allowing current to flow in one direction while blocking it in the opposite direction. This process creates an audio signal that can be heard through headphones or a speaker. Despite its simplicity, the crystal receiver has some limitations. For instance, it cannot amplify signals, which means that it is only effective for receiving strong broadcasts. Additionally, the sound quality is not as clear as that produced by more advanced receivers. However, these limitations did not deter enthusiasts; instead, they embraced the challenge of building and improving their own devices. Over the years, the crystal receiver has become a symbol of the early days of radio technology. Many collectors and historians cherish these devices, recognizing their significance in the evolution of communication. Today, while we have access to sophisticated digital radios and streaming services, the charm of a crystal receiver remains. It serves as a reminder of the ingenuity and creativity of those who pioneered the field of wireless communication. In conclusion, the crystal receiver represents a remarkable chapter in the history of technology. Its straightforward design and ability to connect people through the airwaves continue to inspire new generations of inventors and radio enthusiasts. Understanding the crystal receiver not only enriches our knowledge of radio technology but also highlights the importance of innovation in shaping our modern world.

在无线电技术的世界里，术语水晶接收器指的是一种简单的无线电接收器，广泛使用于20世纪初。这种创新设备在无线通信的发展中发挥了至关重要的作用，并为现代无线电技术奠定了基础。水晶接收器的特点是使用水晶探测器，通常由方铅矿或硅等材料制成，将无线电波转换为音频信号。这一转换过程使得听众能够在没有复杂电子元件的情况下收听广播。水晶接收器最迷人的一个方面是它的简单性。与依赖电池或外部电源的现代接收器不同，早期的模型通常仅靠所接收到的无线电波的能量供电。这一特性使它们在爱好者和业余无线电爱好者中非常受欢迎。人们可以在家中用最少的工具和材料自己制作，从而让许多人第一次体验到无线电的魔力。水晶接收器的操作涉及几个关键组件：天线、水晶探测器和耳机或扬声器。天线捕获无线电波，然后将其传导到水晶探测器。水晶作为整流器，允许电流朝一个方向流动，同时阻止其朝相反方向流动。这个过程产生的音频信号可以通过耳机或扬声器听到。尽管其简单性，但水晶接收器也有一些局限性。例如，它无法放大信号，这意味着它仅对接收强广播有效。此外，声音质量不如更先进的接收器清晰。然而，这些限制并没有阻止爱好者；相反，他们接受了构建和改进自己设备的挑战。多年来，水晶接收器已成为无线电技术早期时代的象征。许多收藏家和历史学家珍视这些设备，认识到它们在通信演变中的重要性。今天，尽管我们可以使用复杂的数字收音机和流媒体服务，但水晶接收器的魅力依然存在。它提醒我们那些开创无线通信领域的人的聪明才智和创造力。总之，水晶接收器代表了技术历史中一个非凡的篇章。其简单的设计和通过无线电波连接人们的能力继续激励着新一代的发明家和无线电爱好者。理解水晶接收器不仅丰富了我们对无线电技术的知识，也突显了创新在塑造我们现代世界中的重要性。