normally open

简明释义

常开的

英英释义

例句

1.The door is equipped with a normally open 常开 sensor that activates the alarm when opened.

这扇门配备了一个常开传感器，当门打开时会激活警报。

2.The light switch is normally open 常开, allowing electricity to flow only when pressed.

这个灯开关是常开的，只有在按下时才允许电流通过。

3.In this circuit, the relay is normally open 常开 until triggered by the control signal.

在这个电路中，继电器是常开的，直到被控制信号触发。

4.For safety reasons, the emergency stop button should be normally open 常开.

出于安全原因，紧急停止按钮应该是常开的。

5.The valve operates in a normally open 常开 position to allow fluid flow.

这个阀门在常开的位置操作，以允许流体流动。

作文

In the world of electronics and automation, understanding the term normally open is essential for anyone working with circuits and control systems. A normally open switch is a type of switch that remains open when it is not being activated. This means that no current flows through the circuit until the switch is closed, allowing electricity to pass. The significance of this design is profound, especially in safety and operational contexts.For instance, consider a fire alarm system. The fire alarm uses a normally open contact to ensure that the alarm sounds only when there is an emergency. In its default state, the circuit is open, meaning that the alarm is silent. However, if smoke is detected, the circuit closes, triggering the alarm. This design minimizes false alarms, as the system only activates under specific conditions, thus saving resources and ensuring that people take the alarms seriously.Similarly, in industrial applications, normally open switches are widely used in machinery. For example, a safety guard on a machine might use a normally open switch that shuts down the machine if the guard is opened. This prevents accidents and injuries by ensuring that machinery cannot operate when it is unsafe to do so. The normally open configuration is crucial here, as it ensures that the machine is off by default, and only operates when it is safe.Moreover, the concept of normally open is not limited to physical switches. It can also be applied in software and programming environments. For example, in certain programming scenarios, a function may be designed to run only when a specific condition is met. In this case, one could say that the function is normally open to execution, meaning it will not run unless explicitly called upon. This allows for greater control over program flow and helps prevent unwanted operations.The advantages of using normally open configurations extend beyond just safety and control. They often lead to energy savings as well. Since the circuit remains open when not in use, there is no power consumption until activation occurs. This is particularly important in battery-operated devices, where conserving energy is essential for prolonging battery life.In conclusion, the term normally open plays a vital role in various fields, from electronics to programming. It signifies a state of readiness that requires activation to perform its function, thereby ensuring safety, efficiency, and resource conservation. By understanding the implications of normally open systems, individuals can better appreciate the design choices made in technology and automation, leading to safer and more effective solutions in everyday applications.

在电子和自动化的世界中，理解术语normally open对于任何与电路和控制系统打交道的人来说都是必不可少的。normally open开关是一种在未被激活时保持打开状态的开关。这意味着在电路关闭之前没有电流流动，直到开关关闭，电流才会通过。这个设计的意义深远，特别是在安全和操作的背景下。例如，考虑一个火警报警系统。火警报警器使用normally open触点，以确保只有在发生紧急情况下才会发出警报。在其默认状态下，电路是打开的，这意味着警报是静音的。然而，如果检测到烟雾，电路就会闭合，从而触发警报。这个设计最大限度地减少了误报，因为系统仅在特定条件下激活，从而节省资源并确保人们认真对待报警。同样，在工业应用中，normally open开关广泛用于机器设备。例如，机器上的安全护罩可能使用一个normally open开关，当护罩打开时关闭机器。这可以防止事故和伤害，确保机器在不安全时无法运行。这里的normally open配置至关重要，因为它确保机器在默认情况下是关闭的，只有在安全时才会运行。此外，normally open的概念不仅限于物理开关。它也可以应用于软件和编程环境。例如，在某些编程场景中，函数可能被设计为仅在满足特定条件时运行。在这种情况下，可以说该函数对执行是normally open的，这意味着除非明确调用，否则它不会运行。这使得对程序流程有更大的控制，并帮助防止不必要的操作。使用normally open配置的优点不仅在于安全和控制。它们通常还会带来节能效果。因为电路在未使用时保持打开状态，所以在激活发生之前不会消耗电力。这在电池供电的设备中尤其重要，因为节能对于延长电池寿命至关重要。总之，术语normally open在各个领域发挥着至关重要的作用，从电子学到编程。它表示一种准备状态，需要激活才能执行其功能，从而确保安全、效率和资源节约。通过理解normally open系统的含义，个人可以更好地欣赏技术和自动化中的设计选择，从而在日常应用中导致更安全和更有效的解决方案。