名词
中文翻译：被动转换器
同义词：
['passivedetector', 'passive sensor']
例句：
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1. The device is a passive transducer that converts sound waves into electricalsignals.
这个装置是一个被动转换器，将声波转换为电信号。
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2. In the medicalfield, passive transducers areused to measure heart rate and blood pressure.
在医学领域，被动转换器被用来测量心率和血压。
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3. The engineerdesigned a passive transducer that could detect changes intemperature without requiring any external power source.
工程师设计了一个被动转换器，可以在不依赖任何外部电源的情况下检测温度变化。