现货可出租SRANFORD SR850.成色8成新。另有SR830 SR844锁相放大器租售。SR850 is a digital lock-in amplifier d on an innovative DSP (Digital Signal Processing) architecture. The SR850 boasts a number of significant performance advantages over traditional lock-in amplifiershigher dynamic reserve, lower drift, lower distortion, and dramatically higher phase resolution. In addition, the CRT display and 65,536 point memory make it possible to display and process data in a variety of formats unavailable with conventional lock-ins..的850是基于一个创新的DSP数字相放大器数字信号处理的体系结构。的850拥有一个显着的性优势传统的相amplifiershigher动态储备低漂移低失真和更的相位分率。此外CRT显示器和65536点忆可以显示和处理各种不同格式的数据无法与传统的定的。Digital Precision.数字精度。At the input of the SR850 is a precision 18-bit A/D converter which digitizes the input signal at 256 kHz. The A/D converter, together with a high-speed DSP chip, replace the analog demodulator (mixer), low-pass filters and DC amplifiers found in conventional lock-ins. Instead of using analog components, the SR850 is implemented by a series of precise mathematical calculations which eliminate the drift, offset, nonlinearity and aging inherent in analog components. The same DSP chip digitally synthesizes the reference oscillator, providing a source with less than -80 dBc distortion, 100 mHz frequency resolution, and 2 mV of amplitude resolution.在850入是一个精度18位A/D换器将入信号在256千。AD换器DSP片结合取代模拟器Mixer低滤波器和直流放大器的常定发现。不是使用模拟元件在850是由一系列的数学算消了漂移偏移线性和化的模拟元件的固有的。相同的DSP片数字综合参振器提供源小于- 80 dBc的失真100兆的率分率和幅度分率2 mV。
