active transducer

简明释义

有源换能器

英英释义

例句

1.The active transducer in the microphone captures sound and transforms it into an electrical signal.

麦克风中的主动传感器捕捉声音并将其转化为电信号。

2.An active transducer can be found in modern temperature sensors to provide real-time data.

现代温度传感器中可以找到主动传感器以提供实时数据。

3.The active transducer in this sensor detects motion and sends a signal to the control unit.

此传感器中的主动传感器检测运动并向控制单元发送信号。

4.The active transducer converts electrical signals into sound waves in the speaker system.

这个主动传感器将电信号转换为扬声器系统中的声波。

5.In medical devices, an active transducer is used to measure blood pressure accurately.

在医疗设备中，主动传感器用于准确测量血压。

作文

In the field of electronics and instrumentation, the term active transducer refers to a device that converts a form of energy into an electrical signal, utilizing an external power source. Unlike passive transducers, which only convert energy and do not require any additional power for their operation, active transducer systems enhance the signal they produce, making them more suitable for various applications. This essay will explore the characteristics, advantages, and applications of active transducer devices, emphasizing their significance in modern technology.One of the primary characteristics of an active transducer is its ability to generate an output signal that is proportional to the input stimulus. This means that when a physical quantity, such as temperature, pressure, or light intensity, is applied to the transducer, it produces an electrical signal that can be measured and analyzed. An example of an active transducer is a thermocouple, which generates a voltage when heated, allowing for precise temperature measurements.The main advantage of using an active transducer is its capability to provide a stronger and more reliable signal. Since these devices have an external power source, they can amplify the signal before it is transmitted to other components in a system. This amplification is crucial in applications where the input signal is weak or susceptible to noise, as it ensures that the data collected is accurate and can be processed effectively. Furthermore, active transducer devices often have faster response times compared to their passive counterparts, making them ideal for dynamic measurements.Applications of active transducer devices are vast and varied. In the automotive industry, for instance, they are used in sensors that monitor engine performance, fuel efficiency, and emissions. These sensors rely on active transducer technology to provide real-time data to the vehicle's control systems, enabling optimal performance and compliance with environmental regulations. Similarly, in medical instrumentation, active transducer devices play a critical role in diagnostic equipment, such as ultrasound machines, which utilize piezoelectric transducers to convert sound waves into electrical signals for imaging.Moreover, the telecommunications sector benefits significantly from active transducer technology. Microphones, for example, are a type of active transducer that converts sound waves into electrical signals for audio recording and transmission. The clarity and fidelity of sound captured by these devices are vital for effective communication, whether in personal devices like smartphones or in professional settings such as broadcasting.In conclusion, active transducer devices are essential components in various technological fields, providing enhanced signal generation and amplification capabilities. Their ability to accurately convert physical phenomena into electrical signals makes them invaluable in applications ranging from automotive systems to medical diagnostics and telecommunications. As technology continues to advance, the role of active transducer devices will undoubtedly expand, leading to even more innovative solutions that improve our daily lives. Understanding the function and importance of these devices is crucial for anyone interested in the fields of engineering and technology.

在电子和仪器领域，术语主动传感器指的是一种将能量形式转换为电信号的设备，利用外部电源。与被动传感器不同，被动传感器仅仅转换能量，并且不需要额外的电源来操作，而主动传感器系统增强了它们产生的信号，使其更适合各种应用。本文将探讨主动传感器设备的特性、优势和应用，强调它们在现代技术中的重要性。主动传感器的主要特征之一是其能够生成与输入刺激成比例的输出信号。这意味着，当施加物理量（如温度、压力或光强度）到传感器时，它会产生一个可以被测量和分析的电信号。热电偶就是一个主动传感器的例子，它在加热时会产生电压，从而允许精确的温度测量。使用主动传感器的主要优点是其提供更强大和更可靠信号的能力。由于这些设备具有外部电源，因此可以在信号传输到系统中的其他组件之前放大信号。这种放大在输入信号较弱或易受噪声影响的应用中至关重要，因为它确保收集的数据是准确的，并且可以有效处理。此外，与被动传感器相比，主动传感器设备通常具有更快的响应时间，使其非常适合动态测量。主动传感器设备的应用范围广泛且多样。在汽车工业中，例如，它们用于监测发动机性能、燃油效率和排放的传感器。这些传感器依赖于主动传感器技术提供实时数据给车辆的控制系统，从而实现最佳性能并遵守环境法规。同样，在医疗仪器中，主动传感器设备在诊断设备中发挥着关键作用，例如超声波机器，它利用压电传感器将声波转换为电信号以进行成像。此外，电信行业从主动传感器技术中受益匪浅。麦克风就是一种主动传感器，它将声波转换为电信号以进行音频录制和传输。这些设备捕获的声音的清晰度和保真度对于有效沟通至关重要，无论是在智能手机等个人设备中，还是在广播等专业环境中。总之，主动传感器设备是各个技术领域的重要组成部分，提供增强的信号生成和放大能力。它们准确地将物理现象转换为电信号的能力使其在从汽车系统到医疗诊断和电信通讯等应用中变得不可或缺。随着技术的不断进步，主动传感器设备的角色无疑会扩大，导致更多创新解决方案的出现，从而改善我们的日常生活。理解这些设备的功能和重要性对于任何对工程和技术领域感兴趣的人来说都是至关重要的。