frequency-modulation detector ==> 鉴频器 frequency modulation deviation ==> 调频频偏 frequency-modulation distortion ==> 调频失真 ..
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balanced frequency modulation detector 平衡调频检波器
frequency modulation detector [电子] 调频检波器
frequency modulation detector tube 调频检波管
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The system can be used to measure the voltage responsivity and detectivity of infrared detector at different modulation frequency with rapid speed and high accuracy, it meets the need of measurement.
该系统可以自动测试不同调制频率下红外探测器的电压响应率和探测率，能够快速准确地完成测试任务，满足了测试要求。
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