dead reckoning indicator

简明释义

航迹记录器

英英释义

例句

1.In the absence of GPS, sailors often use a dead reckoning indicator for navigation.

在没有GPS的情况下，水手们通常使用航位推算指示器进行导航。

2.The dead reckoning indicator showed that we were off course by several miles.

航位推算指示器显示我们偏离航线几英里。

3.To ensure accuracy, the captain checked the dead reckoning indicator before making any turns.

为了确保准确性，船长在转弯前检查了航位推算指示器。

4.Using a dead reckoning indicator can help avoid potential hazards in open waters.

使用航位推算指示器可以帮助避免开放水域中的潜在危险。

5.The pilot relied on the dead reckoning indicator to navigate through the stormy weather.

飞行员依靠航位推算指示器在暴风雨中导航。

作文

In the world of navigation and aviation, precise positioning is crucial for safety and efficiency. One of the key tools that pilots and navigators use to determine their location is the dead reckoning indicator. This device helps in calculating a vessel's current position by using a previously determined position and advancing it based on known or estimated speeds over elapsed time and course. The concept of dead reckoning itself is not new; it has been used for centuries by sailors and explorers alike. However, the technology behind the dead reckoning indicator has evolved significantly over the years, integrating modern advancements to enhance accuracy and reliability.The dead reckoning indicator operates on the principles of vector mathematics, where the navigator inputs the speed and direction of travel. By continuously updating the position based on these variables, the indicator provides real-time data that can be critical during poor visibility conditions or when GPS signals are weak or unavailable. For instance, in an aircraft flying through clouds or at night, relying solely on visual cues may not be feasible. The dead reckoning indicator thus becomes an essential instrument, allowing pilots to maintain their intended flight path and avoid potential hazards.Moreover, the importance of the dead reckoning indicator extends beyond just aviation. In maritime navigation, ships often encounter similar challenges. When navigating through fog or heavy rain, mariners depend on this tool to ensure they stay on course. The ability to estimate one’s position accurately can mean the difference between safely reaching a destination or running aground. Thus, understanding how to effectively use the dead reckoning indicator is a fundamental skill for anyone involved in navigation.However, it is important to note that while the dead reckoning indicator is a powerful tool, it is not infallible. Errors can accumulate over time due to factors such as wind drift, currents, or mechanical failure. Therefore, navigators must frequently cross-reference their calculations with other navigational aids like GPS or celestial navigation to ensure accuracy. This practice of verification is crucial in maintaining safe and effective navigation practices.In conclusion, the dead reckoning indicator plays a vital role in both aviation and maritime navigation. It allows navigators to estimate their position when traditional landmarks are not visible. As technology continues to advance, the integration of digital systems and enhanced algorithms will likely improve the functionality of the dead reckoning indicator. Despite its limitations, understanding and utilizing this tool remains a key aspect of navigation training, ensuring that both pilots and mariners are equipped to handle the complexities of their journeys with confidence and precision.

在导航和航空的世界中，精确定位对安全和效率至关重要。飞行员和导航员用来确定其位置的关键工具之一是航迹推算指示器。该设备通过使用先前确定的位置，并根据已知或估计的速度和经过的时间与航向进行推进，帮助计算船只的当前位置。航迹推算的概念并不新鲜；几个世纪以来，水手和探险家都在使用它。然而，随着技术的进步，航迹推算指示器背后的技术也发生了显著变化，整合了现代的进步，以增强准确性和可靠性。航迹推算指示器基于矢量数学原理运作，导航员输入旅行的速度和方向。通过不断更新基于这些变量的位置，指示器提供实时数据，这在能见度差或GPS信号弱或不可用的情况下可能至关重要。例如，在飞机穿越云层或夜间飞行时，仅依靠视觉线索可能不可行。因此，航迹推算指示器成为一项重要的仪器，使飞行员能够保持其预定航线，避免潜在的危险。此外，航迹推算指示器的重要性不仅限于航空。在海洋导航中，船只经常面临类似的挑战。当在雾或大雨中航行时，海员们依赖这一工具确保他们保持在航线上。准确估计自身位置的能力可能意味着安全到达目的地或触礁。因此，理解如何有效使用航迹推算指示器是任何参与导航的人的基本技能。然而，重要的是要注意，虽然航迹推算指示器是一种强大的工具，但并不是万无一失的。由于风漂、洋流或机械故障等因素，误差可能会随着时间的推移而累积。因此，导航员必须频繁地将他们的计算与其他导航辅助工具（如GPS或天文导航）进行交叉验证，以确保准确性。这种验证的做法对于维护安全和有效的导航实践至关重要。总之，航迹推算指示器在航空和海洋导航中发挥着至关重要的作用。它使导航员在传统地标不可见时估计他们的位置。随着技术的不断进步，数字系统和增强算法的集成可能会改善航迹推算指示器的功能。尽管存在局限性，但理解和利用这一工具仍然是导航培训的关键方面，确保飞行员和海员能够自信而精确地应对旅程的复杂性。