dead-reckoning instrument

简明释义

船位推算仪

英英释义

例句

1.Before modern technology, explorers depended heavily on dead-reckoning instruments for their journeys.

在现代技术出现之前，探险者在旅途中严重依赖推算仪器。

2.A dead-reckoning instrument can help determine your location even when landmarks are not visible.

即使地标不可见，推算仪器也可以帮助确定您的位置。

3.Using a dead-reckoning instrument is essential for sailors when GPS signals are weak.

当GPS信号微弱时，水手使用推算仪器是必不可少的。

4.The dead-reckoning instrument provided accurate estimates of the vessel's position during the storm.

在风暴中，推算仪器提供了船只位置的准确估计。

5.The pilot relied on a dead-reckoning instrument to navigate through the foggy conditions.

飞行员依靠推算仪器在雾霭中导航。

作文

In the world of navigation, the term dead-reckoning instrument plays a crucial role. This type of instrument is used to estimate one's current position based on a previously determined position, taking into account speed, time, and direction. As technology has evolved, the methods and tools for navigation have significantly improved, yet the fundamental principles of dead-reckoning instrument remain relevant even in modern times.Historically, sailors relied heavily on dead-reckoning instruments when navigating the vast oceans. These instruments allowed them to calculate their position by considering their last known location and the course they had traveled. For instance, if a ship set sail from a known point and maintained a steady speed and direction, the navigator could estimate the current location after a certain period. However, this method is not without its challenges. Factors such as wind, currents, and human error can lead to inaccuracies in the estimated position.Despite these challenges, the dead-reckoning instrument remains an essential tool for many navigators today. In aviation, pilots often use this method to maintain their course, especially when flying in areas where GPS signals may be unreliable. By calculating their position based on their last known location, speed, and heading, pilots can ensure that they stay on track. This technique is particularly useful during long flights over oceans or remote regions where visual references are limited.Moreover, the advent of technology has transformed how dead-reckoning instruments are utilized. Modern systems often incorporate advanced sensors and algorithms to enhance accuracy. For example, inertial navigation systems (INS) use accelerometers and gyroscopes to provide real-time data about an aircraft's position and movement. These systems can significantly reduce the errors associated with traditional dead-reckoning instruments by continuously updating the estimated position based on changes in speed and direction.In addition to aviation, dead-reckoning instruments are also widely used in maritime navigation and even in autonomous vehicles. For ships, the combination of GPS and dead-reckoning instruments allows for precise navigation through busy shipping lanes and complex port environments. Similarly, self-driving cars utilize similar principles to navigate safely and efficiently, relying on a mix of GPS, sensors, and dead-reckoning instruments to determine their position on the road.The importance of understanding dead-reckoning instruments cannot be overstated, especially in fields that require precise navigation. As we continue to explore new frontiers, whether in the skies or on the seas, the principles behind these instruments will remain foundational. They provide a reliable means of estimating position and ensuring that we can reach our destinations safely. The combination of traditional methods and modern technology illustrates the enduring relevance of dead-reckoning instruments in the ever-evolving landscape of navigation.In conclusion, the dead-reckoning instrument is more than just a historical artifact; it is a vital component of navigation that continues to evolve with technology. Understanding its applications and limitations is essential for anyone involved in navigation, whether they are seasoned sailors, pilots, or engineers developing autonomous systems. As we look to the future, the knowledge and techniques associated with dead-reckoning instruments will undoubtedly play a key role in guiding us through uncharted territories.

在导航的世界中，术语死算仪器扮演着至关重要的角色。这种类型的仪器用于根据先前确定的位置估计当前位置，同时考虑速度、时间和方向。随着技术的发展，导航的方法和工具大大改善，但死算仪器的基本原理在现代仍然相关。历史上，水手在航行广阔海洋时非常依赖死算仪器。这些仪器使他们能够通过考虑最后已知的位置和所行驶的航程来计算他们的位置。例如，如果一艘船从一个已知点起航，并保持稳定的速度和方向，导航员可以在一定时间后估算当前位置。然而，这种方法并非没有挑战。风、洋流和人为错误等因素可能导致估算位置的误差。尽管存在这些挑战，死算仪器今天仍然是许多导航员的重要工具。在航空领域，飞行员经常使用这种方法来保持航向，尤其是在飞行于GPS信号可能不可靠的地区时。通过根据最后已知的位置、速度和航向计算他们的位置，飞行员可以确保他们保持在正确的轨道上。这种技术在长途飞行穿越海洋或偏远地区时特别有用，在这些地方视觉参考有限。此外，科技的出现改变了死算仪器的使用方式。现代系统通常结合先进的传感器和算法以增强准确性。例如，惯性导航系统（INS）使用加速度计和陀螺仪提供有关飞机位置和运动的实时数据。这些系统可以通过根据速度和方向的变化不断更新估算位置，从而显著减少传统死算仪器相关的误差。除了航空，死算仪器还广泛应用于海洋导航，甚至在自动驾驶汽车中也是如此。对于船只而言，GPS和死算仪器的结合允许在繁忙的航道和复杂的港口环境中进行精确导航。同样，自驾车利用类似的原理安全高效地导航，依靠GPS、传感器和死算仪器的混合来确定它们在道路上的位置。理解死算仪器的重要性不容小觑，特别是在需要精确导航的领域。随着我们继续探索新的前沿，无论是在天空还是海洋，围绕这些仪器的原则将始终是基础。它们提供了一种可靠的估算位置的方法，确保我们能够安全到达目的地。传统方法与现代技术的结合展示了死算仪器在不断发展的导航领域中的持久相关性。总之，死算仪器不仅仅是历史遗物；它是导航的重要组成部分，随着技术的进步而不断发展。理解其应用和局限性对于任何参与导航的人来说都是至关重要的，无论他们是经验丰富的水手、飞行员，还是开发自动化系统的工程师。展望未来，与死算仪器相关的知识和技术无疑将在引导我们穿越未知领域方面发挥关键作用。