search coil

简明释义

搜寻线圈;寻向线圈

英英释义

例句

1.The search coil 探测线圈 is often used in metal detectors to find hidden treasures.

在金属探测器中，search coil 探测线圈常用于寻找隐藏的宝藏。

2.He carefully calibrated the search coil 探测线圈 before starting the experiment.

在开始实验之前，他仔细校准了search coil 探测线圈。

3.The engineer used a search coil 探测线圈 to locate the buried metal pipes.

工程师使用了一个search coil 探测线圈来定位埋藏的金属管道。

4.By adjusting the frequency of the search coil 探测线圈, we can improve the detection range.

通过调整search coil 探测线圈的频率，我们可以提高探测范围。

5.The search coil 探测线圈 was essential for the archaeologists in their excavation work.

这个search coil 探测线圈对于考古学家们的挖掘工作至关重要。

作文

In the field of physics and engineering, the term search coil refers to a specific type of electromagnetic sensor that is used to detect magnetic fields. These coils are often employed in various applications such as geophysical surveys, metal detection, and even in some medical imaging technologies. Understanding how a search coil works can provide insights into its importance in both scientific research and practical applications.A search coil typically consists of a loop or winding of wire that is designed to respond to changes in magnetic fields. When a magnetic field passes through the coil, it induces an electromotive force (EMF) across the wire due to Faraday’s law of electromagnetic induction. This principle states that a change in magnetic flux through a circuit induces an electric current in that circuit. The amount of induced current can be measured, allowing researchers and engineers to gather data about the strength and direction of the magnetic field.One of the most common uses of a search coil is in geophysical exploration. Geologists utilize these devices to locate mineral deposits and understand the geological structure of the Earth. By measuring variations in the Earth's magnetic field, they can infer the presence of different types of rocks and minerals. This method is particularly valuable because it is non-invasive and can cover large areas relatively quickly.In addition to geological applications, search coils are also widely used in metal detectors. These devices work by generating a magnetic field through the coil. When metal objects come within this field, they disrupt the magnetic lines, which is detected by the coil. The ability to pinpoint the location of buried artifacts or treasures has made metal detecting a popular hobby, as well as a useful tool for archaeological digs.Moreover, search coils play a significant role in medical technology, particularly in magnetic resonance imaging (MRI). In MRI machines, coils are used to generate and receive radio waves in the presence of a strong magnetic field. The data collected from these coils helps create detailed images of the inside of the human body, allowing doctors to diagnose various conditions without invasive procedures.The design and efficiency of a search coil can greatly influence its performance. Factors such as the number of turns in the coil, the diameter of the wire, and the core material can all affect the sensitivity and accuracy of measurements. Engineers continually strive to improve these parameters to enhance the functionality of search coils in various applications.In conclusion, the search coil is a vital component in many technological and scientific fields. Its ability to detect and measure magnetic fields has led to advancements in geology, archaeology, and medicine. As technology continues to evolve, the applications and designs of search coils will likely expand, further demonstrating their importance in our understanding of the physical world. By comprehending the principles behind search coils, we can better appreciate their contributions to both science and everyday life.

在物理和工程领域，术语search coil指的是一种特定类型的电磁传感器，用于检测磁场。这些线圈通常应用于地球物理勘测、金属探测，甚至一些医学成像技术。理解search coil的工作原理可以为我们提供对其在科学研究和实际应用中重要性的洞察。search coil通常由一圈或一卷导线组成，旨在响应磁场的变化。当磁场穿过线圈时，根据法拉第电磁感应定律，会在导线上感应出电动势（EMF）。这一原理指出，磁通量的变化会在电路中感应出电流。感应电流的大小可以被测量，从而使研究人员和工程师能够收集有关磁场强度和方向的数据。search coil最常见的用途之一是在地球物理勘探中。地质学家利用这些设备来定位矿藏并了解地球的地质结构。通过测量地球磁场的变化，他们可以推断出不同类型岩石和矿物的存在。这种方法特别有价值，因为它是非侵入性的，并且可以相对快速地覆盖大面积区域。除了地质应用外，search coils还广泛用于金属探测器。这些设备通过线圈产生一个磁场。当金属物体进入该磁场时，它们会干扰磁力线，而这一点会被线圈检测到。定位埋藏文物或宝藏的能力使得金属探测成为一种流行的爱好，同时也是考古发掘的有用工具。此外，search coils在医学技术中也扮演着重要角色，尤其是在磁共振成像（MRI）中。在MRI机器中，线圈用于在强磁场下生成和接收无线电波。来自这些线圈的数据帮助创建人类身体内部的详细图像，使医生能够在不进行侵入性程序的情况下诊断各种病症。search coil的设计和效率会极大影响其性能。线圈中的圈数、导线直径和核心材料等因素都会影响测量的灵敏度和准确性。工程师们不断努力改善这些参数，以提高search coils在各种应用中的功能。总之，search coil是许多技术和科学领域的重要组成部分。它检测和测量磁场的能力促进了地质学、考古学和医学的进步。随着技术的不断发展，search coils的应用和设计可能会扩展，进一步展示其在我们理解物理世界中的重要性。通过理解search coils背后的原理，我们可以更好地欣赏它们对科学和日常生活的贡献。