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交流（AC）是一种极性周期性地反转并且幅度随时间不断变化的电流。 与直流（DC）电相比，交流电的发电和输电成本更低，效率更高，因此企业和住宅通常使用交流电。 在传输过程中，变压器可以通过提高或降低交流线路的电压，降低功率损耗。
交流电是一种家用电能——当消费者将电视等家用电器和其他器件的电源插头插入墙壁上的插座时，便能使用交流电。交流电可以转换为直流电，供几乎所有电子器件使用。
An oscilloscope captures and displays signals in the time domain, while a spectrum analyzer captures and displays signals in the frequency domain. Sometimes, oscilloscopes have a built-in spectrum analyzer function to make it easy to analyze signals in both the time and frequency domains. ,
View Full VersionA programmable DC power supply is connected to the device under test through wires connected to a DC power panel. Engineers can set voltage or current levels to power the device for testing. The DC power supply is a programmable DC power supply.
View Full VersionHow to measure frequency? Measurable Devices, Measurement Methods, and Precautions In everyday life, many people say they don't know much about the frequencies of electrical appliances. However, some electrical appliances have specific compatible frequencies, and using electricity at a frequency that is not compatible with the product may lead to malfunctions, fires, and other risks. In addition, in industrial equipment, there are electrical designed to operate at fixed or variable frequencies...
View Full VersionWant to know how to use the current probe? Please first understand the following basic usage of the current probe and precautions for use. Since electricity is invisible, it is not possible to immediately determine whether a malfunction has occurred. In some cases, current measurements are required on a daily basis to prevent malfunctions, as well as to identify the cause of malfunctions when they do occur. Digital multimeters, clamp meters, and current probes can be used...
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