open loop system

简明释义

开圈系统

英英释义

例句

1.A blender that runs for a predetermined time without sensing the consistency of the mixture is an open loop system.

一个在预定时间内运行而不感知混合物稠度的搅拌机是一个开环系统。

2.An irrigation system that waters plants for a set amount of time without measuring soil moisture is an open loop system.

一个灌溉系统，如果在不测量土壤湿度的情况下定时给植物浇水，就是一个开环系统。

3.A simple toaster is an example of an open loop system, as it does not have a feedback mechanism to adjust the cooking time based on the bread's color.

一个简单的烤面包机是一个开环系统的例子，因为它没有反馈机制来根据面包的颜色调整烹饪时间。

4.In an open loop system, the output is not compared with the input, which can lead to inefficiencies.

在一个开环系统中，输出与输入不进行比较，这可能导致效率低下。

5.The heating element in a kettle operates as an open loop system until the water reaches boiling point.

水壶中的加热元件在水达到沸点之前作为一个开环系统工作。

作文

In the realm of control systems, the concept of an open loop system plays a crucial role in understanding how various processes are managed and regulated. An open loop system is defined as a type of control system where the output is not measured or fed back to influence the input. This means that the system operates solely based on the initial input without any adjustments made according to the output results. The simplicity of an open loop system makes it suitable for certain applications, but it also comes with limitations that can affect performance and efficiency.One of the most common examples of an open loop system is a basic electric toaster. When you set the timer and push down the lever, the toaster begins to operate. It heats the bread for a predetermined amount of time regardless of whether the bread is toasted to perfection or burnt. In this case, the toaster does not have any feedback mechanism to adjust the heating time based on the actual browning of the bread. This illustrates how an open loop system functions: it follows a set process without adapting to the outcomes.The advantages of an open loop system include its simplicity and cost-effectiveness. Since there are no sensors or feedback mechanisms required, these systems are generally easier to design and implement. They require less maintenance and can be more reliable in scenarios where the conditions are stable and predictable. For instance, in applications like irrigation systems where water is supplied at a consistent rate, an open loop system can effectively deliver the required amount of water without needing to monitor the soil moisture levels.However, the lack of feedback in an open loop system can also lead to significant drawbacks. Because the system does not adjust based on its output, it can result in inefficiencies and inaccuracies. In situations where external factors can vary significantly, relying on an open loop system may lead to suboptimal performance. For example, if the same toaster is used with different types of bread or varying humidity levels, the outcome may not always be satisfactory. This highlights the importance of feedback in many control systems.In contrast to open loop systems, closed loop systems incorporate feedback to adjust their operations based on the output. This allows for greater accuracy and adaptability. For instance, a thermostat-controlled heating system is a closed loop system because it continuously measures the temperature and adjusts the heating accordingly. While open loop systems are beneficial in specific contexts, closed loop systems are often preferred in applications requiring precision and responsiveness.In conclusion, understanding the functionality of an open loop system is essential for anyone involved in engineering, automation, or systems design. While these systems offer simplicity and cost advantages, they also come with limitations that need to be considered. As technology continues to advance, the relevance of open loop systems in various industries will evolve, but their fundamental principles will remain a vital part of control theory. By recognizing when to apply an open loop system versus a closed loop alternative, engineers and designers can optimize performance across a wide range of applications.

在控制系统的领域中，开环系统的概念在理解各种过程的管理和调节时起着至关重要的作用。开环系统被定义为一种控制系统，其中输出不被测量或反馈以影响输入。这意味着系统仅根据初始输入进行操作，而不根据输出结果进行任何调整。开环系统的简单性使其适合某些应用，但也伴随着可能影响性能和效率的限制。一个最常见的开环系统的例子是基本的电烤箱。当你设置定时器并按下杠杆时，烤面包机开始工作。它加热面包的预定时间，无论面包是烤得恰到好处还是烧焦。在这种情况下，烤面包机没有任何反馈机制来根据实际的面包上色程度来调整加热时间。这说明了开环系统的运作方式：它遵循设定的过程，而不适应结果。开环系统的优点包括其简单性和成本效益。由于不需要传感器或反馈机制，这些系统通常更易于设计和实施。它们需要更少的维护，并且在条件稳定和可预测的情况下可以更可靠。例如，在灌溉系统等应用中，水以一致的速度供应，开环系统可以有效地提供所需的水量，而无需监测土壤湿度水平。然而，开环系统中缺乏反馈也可能导致显著的缺点。由于系统不根据输出进行调整，可能导致低效率和不准确。在外部因素可能显著变化的情况下，依赖开环系统可能导致次优的性能。例如，如果同一款烤面包机用于不同类型的面包或不同的湿度水平，结果可能并不总是令人满意。这突显了在许多控制系统中反馈的重要性。与开环系统相对的是闭环系统，它们结合了反馈，根据输出调整其操作。这允许更大的准确性和适应性。例如，恒温器控制的供暖系统就是一个闭环系统，因为它不断测量温度并相应地调整加热。虽然开环系统在特定上下文中是有益的，但在需要精确和响应能力的应用中，通常更倾向于使用闭环系统。总之，理解开环系统的功能对于任何参与工程、自动化或系统设计的人来说都是至关重要的。虽然这些系统提供了简单性和成本优势，但它们也伴随着需要考虑的限制。随着技术的不断进步，开环系统在各个行业中的相关性将会发展，但其基本原理将始终是控制理论的重要组成部分。通过认识到何时应用开环系统与闭环替代方案，工程师和设计师可以优化各种应用中的性能。