passive transducer

简明释义

无源换能器

英英释义

例句

1.A passive transducer 无源传感器 can convert a physical quantity into an electrical signal without requiring an external power source.

一个passive transducer 无源传感器 可以在不需要外部电源的情况下将物理量转换为电信号。

2.In a temperature measurement system, a thermocouple acts as a passive transducer 无源传感器 to generate voltage based on temperature differences.

在温度测量系统中，热电偶作为passive transducer 无源传感器 根据温度差生成电压。

3.A piezoelectric crystal can function as a passive transducer 无源传感器 by generating an electric charge when subjected to mechanical stress.

压电晶体可以作为passive transducer 无源传感器，在受到机械应力时产生电荷。

4.When using a passive transducer 无源传感器, the output signal typically requires amplification for further processing.

使用passive transducer 无源传感器时，输出信号通常需要放大以进行进一步处理。

5.The strain gauge is a common example of a passive transducer 无源传感器 used to measure deformation in materials.

应变计是一个常见的passive transducer 无源传感器，用于测量材料的变形。

作文

In the world of electronics and instrumentation, the term passive transducer refers to a device that converts one form of energy into another without requiring an external power source. Unlike active transducers, which need an external power supply to operate, passive transducer devices generate an output signal that is directly proportional to the input stimulus. This characteristic makes them particularly valuable in various applications, including measurement systems, sensors, and data acquisition systems.To better understand the concept of passive transducer, let’s explore its working principle and some common examples. A typical passive transducer operates by responding to changes in environmental conditions such as temperature, pressure, or light intensity. For instance, a thermistor, which is a type of temperature sensor, can be classified as a passive transducer. It changes its resistance based on temperature variations, allowing it to provide an electrical signal that corresponds to the temperature of the environment.One of the key advantages of using a passive transducer is its simplicity and reliability. Since these devices do not require any additional power supply, they are often more compact and easier to integrate into various systems. Additionally, passive transducer devices tend to have lower costs compared to their active counterparts, making them an attractive option for many engineering applications.However, there are also some limitations associated with passive transducer devices. For example, because they do not amplify the input signal, the output may be weaker and less detectable, especially in cases where the input stimulus is minimal. This can necessitate the use of additional amplification circuits to improve the signal strength, which may add complexity to the overall system design.In industrial applications, passive transducer devices play a crucial role in monitoring and controlling processes. For example, strain gauges, which measure the amount of deformation or strain in an object, are commonly used in structural health monitoring. They operate by changing their electrical resistance in response to mechanical stress, providing valuable data for engineers to assess the integrity of structures.In conclusion, the concept of passive transducer is fundamental to understanding how various sensing and measurement technologies work. By converting different forms of energy into measurable electrical signals without the need for external power, passive transducer devices offer a reliable and cost-effective solution for numerous applications. As technology continues to advance, the importance of these devices will only grow, paving the way for innovations in fields such as automation, robotics, and environmental monitoring.

在电子和仪器仪表的世界中，术语被动传感器指的是一种将一种形式的能量转换为另一种形式而不需要外部电源的设备。与需要外部电源才能操作的主动传感器不同，被动传感器设备产生的输出信号与输入刺激成正比。这一特性使它们在测量系统、传感器和数据采集系统等各种应用中具有特别的价值。为了更好地理解被动传感器的概念，让我们探讨一下它的工作原理和一些常见的例子。典型的被动传感器通过对环境条件（如温度、压力或光强度）的变化作出反应来工作。例如，热敏电阻可以被归类为被动传感器，它根据温度变化改变其电阻，从而提供一个与环境温度相对应的电信号。使用被动传感器的一个主要优点是它的简单性和可靠性。由于这些设备不需要任何额外的电源，它们通常更紧凑，并且更容易集成到各种系统中。此外，与主动传感器相比，被动传感器设备的成本往往较低，使其成为许多工程应用中的一种有吸引力的选择。然而，与被动传感器设备相关的一些限制也存在。例如，由于它们不放大输入信号，因此输出可能较弱且不易检测，特别是在输入刺激较小时。这可能需要使用额外的放大电路来提高信号强度，这可能会增加整体系统设计的复杂性。在工业应用中，被动传感器设备在监测和控制过程中发挥着至关重要的作用。例如，测量物体变形或应变的应变计常用于结构健康监测。它们通过响应机械应力改变其电阻，从而为工程师提供评估结构完整性的重要数据。总之，被动传感器的概念是理解各种传感和测量技术如何工作的基础。通过将不同形式的能量转换为可测量的电信号，而无需外部电源，被动传感器设备为众多应用提供了可靠且具有成本效益的解决方案。随着技术的不断进步，这些设备的重要性只会增加，为自动化、机器人和环境监测等领域的创新铺平道路。