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实时频谱分析仪可以先在时域中收集数据，然后通过快速傅立叶变换（FFT）将其转换为频域数据。 实时频谱分析仪能够迅速捕获瞬态和快速信号。
Vector network analyzers (VNAs) are test instruments that measure electrical network parameters. They are essential for radio frequency (RF) and microwave component analysis of a wide variety of passive and active devices including filters, antennas and power amplifiers. Network analyzers are ideal for transmission, reflection and impedance measurements as well as s-parameter measurements during design and production. Network analyzers...
View Full VersionWhat is resistance in electricity? This article will cover the basics of resistance, how to calculate resistance, and resistors. Many people have heard the word "resistance" when they were students, but may still not understand it. However, because they don't understand it, they are hesitant to ask people about it now. Simply put, resistance is a force that flows in the opposite direction of the current. Resistance...
View Full VersionA network analyzer consists of a signal source and a receiver. The receiver will detect changes in the output signal of the device (or network) and then compare it to the source signal fed into the device. To evaluate the effect of the device on current and voltage, the VNA measures the resulting amplitude and phase response. This results in transmission and reflection measurements, impedance and s-parameters, which can be used by the test engineer to...
View Full Version测试直流电源有好几种方法，这里我们只介绍几种常用方法。 导通测试：您可以使用万用表的导通模式来完成此项测试。 用万用表表笔接触电源的正极和负极。 如果是导通的，万用表将会发出提示音。 这项测试旨在确定电源是否正在供电以及接线中是否存在断点。 电压...
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