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1锁相放大器LIA一九九五年EGho公司向市场投放了M7260及M7220两种数字式DSP锁相，M7260除了其技术指标居市售DSP锁相之首外，还增加了一些十分有用的特殊功能，如：（）同时可以锁定信号中两个不同频率的成分；（）毋需输人参考信号也能对信号实现解调。与市售其它DSP锁相相同
1 lock-in amplifier LIA 1995 EGho company put on the market of two kinds of M7260 and M7220 digital DSP phase lock, M7260 in addition to its technical indicators in the first of the commercially available DSP phase-locked, but also adds some very useful special Function, such as: () at the same time can lock the signal in two different frequency components; () Without the need to input reference signal can also demodulate the signal. Same as other commercially available DSP lock