The Model 1212 current preamplifier is designed as a low cost, general purpose, bench top instrument to provide a high performance detection system for small ac and dc currents. The 1212 operates with a virtual ground at its input which mitigates unpredictable high frequency roll off due to input cables and stray capacitance. The zero input impedance also allows photodiode detectors to operate linearly over a very wide dynamic range and photomultiplier tubes to operate with minimal distortion.
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已咨询813次前置电流放大器
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已咨询1855次环境生态德国QUMA/丹麦Reson
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ChroZen HPLCZ先进的技术，FlowMasterTM，通过建立一个独特的算法，在任何条件下对溶剂的压缩性补偿做出正确的预测，产生Z准确和精确的流速。这能够通过监测流量波动提供非常稳定的流量速率，并提供显著的RT重复性和区域重复性
1、 Very low noise switches非常低的噪声开关 2、 Fast switching time (35...100ns)快速开关时间(35...100ns) 3、 200V to 1000V range (更高电压可定做) 4、 10通道
1、 100K to 300K operating range 2、 Designed as Front End Stage for FT-ICR Traps 3、 2 Independend Channels 4、 Wide Frequency Range: 0.7 kHz to 30 MHz, customizable 5、 Low Noise Design 6、 Baking in Vacuum up to 125 °C 7、 is implemented as print board version and intended for direct mounting inside a vacuum setup
瑞士苏黎世仪器公司（Zurich Instruments）超高频锁相放大器UHFLI解调频率高达600MHz，采用全数字信号处理，而在整个频率范围内提供100 dB的动态存储。
苏黎世仪器公司（Zurich Instruments）HF2LI 是一款高端数字锁相放大器，信号频率响应范围扩展至50MHz，拥有两个锁相单元，在测量系统中可代替两台常规锁相放大器.
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