【摘要】 频率特性是一个系统(或组件)对不同频率正弦输入信号的响应特性。现有的专用测试工具可分为两类:一类是传统设备,另一类是数字的测试仪,多为进口产品。传统设备体积庞大,故障率高,不便操作。更多还原

【Abstract】 Frequency characteristics is the response characteristics of a system or component to the sinusoidal input signals of different frequencies.The existing special testing tools can be divided into two categories:one is the traditional equipment,another is the digital test instrument,and more for imported products.Traditional equipments have large volume and high failure rate,which is inconvenient to be operated.更多还原