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美國(guó)STANFORD斯坦福SR844鎖相放大器
美國(guó)斯坦福SRS 射頻鎖相放大器SR844
25kHz—200MHz頻率范圍, 100s -30ks時(shí)間常數(shù)；6，12，18，24dB/倍頻程衰減,
內(nèi)部或外部參考源；自動(dòng)量程；存儲(chǔ)和調(diào)用9個(gè)儀器設(shè)備, 標(biāo)準(zhǔn)GPIB，RS—232接口
The SR844 is the widest bandwidth lock-in amplifier available. It provides uncompromised performance with a frequency range of 25 kHz to 200 MHz and up to 80 dB of drift-free dynamic reserve. It includes the many features, ease of operation, and programmability that you&＃39;ve come to expect from SRS DSP lock-in amplifiers.
· 25 kHz to 200 MHz frequency range
· 80 dB dynamic reserve
· Time constants from 100 μs to 30 ks (6, 12, 18 or 24 dB/oct rolloff)
· "No Time Constant" mode (10 μs to 20 μs update rate)
· Auto-gain, -phase, -reserve and -offset
· Two 16-bit DACs and ADCs
· Internal or external reference
· GPIB and RS-232 interfaces
