magnetic deviation

简明释义

自差

英英释义

例句

1.Understanding magnetic deviation is crucial for geologists studying Earth's magnetic field.

理解磁偏差对研究地球磁场的地质学家至关重要。

2.The engineer adjusted the equipment to compensate for the magnetic deviation caused by nearby machinery.

工程师调整了设备，以补偿附近机械引起的磁偏差。

3.During the expedition, we noted the magnetic deviation at various locations on our map.

在探险过程中，我们在地图上的多个位置记录了磁偏差。

4.The ship's compass showed a significant magnetic deviation, making navigation challenging.

船只的指南针显示出显著的磁偏差，使导航变得困难。

5.To ensure accurate readings, pilots must account for magnetic deviation in their navigation systems.

为了确保读数准确，飞行员必须在导航系统中考虑磁偏差。

作文

In the world of navigation, understanding the principles of magnetism is crucial. One important concept that navigators must be aware of is magnetic deviation. This term refers to the error introduced in a compass reading due to local magnetic fields created by nearby metal objects or electronic devices. Unlike magnetic declination, which is the difference between magnetic north and true north, magnetic deviation is specific to the environment surrounding the compass. It can lead to significant navigational errors if not accounted for, especially in critical situations such as maritime or aerial navigation.To comprehend magnetic deviation, it is essential to first grasp the basic functioning of a magnetic compass. A compass operates based on the Earth's magnetic field, which directs the needle towards magnetic north. However, when a compass is placed near ferromagnetic materials, such as steel structures or electronic equipment, these materials can distort the magnetic field. This distortion causes the compass needle to point in a direction that does not accurately reflect true magnetic north, leading to what we call magnetic deviation.For instance, consider a ship navigating through a harbor filled with large metal vessels and cranes. If the captain relies solely on the compass without considering magnetic deviation, they may end up steering the ship off course, potentially leading to dangerous situations. Therefore, it is vital for navigators to calibrate their compasses regularly and understand the local influences that may cause magnetic deviation.To mitigate the effects of magnetic deviation, navigators often employ a technique known as 'swinging the compass.' This process involves rotating the vessel in a controlled manner while taking readings from the compass. By comparing these readings with known reference points, navigators can identify the degree of magnetic deviation and make necessary adjustments to their navigation practices.Furthermore, modern technology has provided additional tools to assist in correcting magnetic deviation. Electronic navigational systems, such as GPS, offer accurate positioning that can help verify compass readings. However, it is still essential for navigators to understand magnetic deviation because electronic systems can also be influenced by local magnetic fields.In conclusion, magnetic deviation is a critical factor in navigation that cannot be overlooked. By understanding its implications and actively working to correct for it, navigators can ensure safer and more accurate journeys. The interplay between natural magnetic forces and human-made environments highlights the importance of thorough knowledge and preparation in navigation. As we continue to explore new frontiers, both on land and at sea, recognizing and adapting to magnetic deviation will remain an essential skill for all navigators.

在导航的世界中，理解磁性原理至关重要。导航员必须意识到的一个重要概念是磁偏差。这个术语指的是由于附近金属物体或电子设备产生的局部磁场而引入的罗盘读数误差。与磁偏角（即磁北与真北之间的差异）不同，磁偏差特定于罗盘周围的环境。如果不加以考虑，它可能导致重大的导航错误，尤其是在海洋或航空导航等关键情况下。要理解磁偏差，首先必须掌握磁罗盘的基本工作原理。罗盘是基于地球的磁场工作的，该磁场将指针指向磁北。然而，当罗盘放置在铁磁材料附近时，例如钢结构或电子设备，这些材料会扭曲磁场。这种扭曲导致罗盘指针指向的方向并不准确反映真磁北，从而导致我们所称之为磁偏差。例如，考虑一艘在充满大型金属船只和起重机的港口航行的船只。如果船长仅依靠罗盘而不考虑磁偏差，他们可能最终会使船只偏离航线，可能导致危险情况。因此，导航员定期校准他们的罗盘并了解可能导致磁偏差的地方影响是至关重要的。为了减轻磁偏差的影响，导航员经常采用一种称为“摆动罗盘”的技术。这个过程涉及在受控的方式下旋转船只，同时从罗盘获取读数。通过将这些读数与已知参考点进行比较，导航员可以识别出磁偏差的程度，并对他们的导航实践进行必要的调整。此外，现代技术提供了额外的工具来帮助修正磁偏差。电子导航系统，如GPS，提供准确的位置，可以帮助验证罗盘读数。然而，导航员仍然需要理解磁偏差，因为电子系统也可能受到局部磁场的影响。总之，磁偏差是导航中不可忽视的关键因素。通过理解其影响并积极努力进行修正，导航员可以确保更安全、更准确的航行。自然磁力与人造环境之间的相互作用突显了在导航中全面知识和准备的重要性。随着我们继续探索陆地和海洋的新前沿，认识并适应磁偏差将始终是所有导航员必备的技能。