斯坦福SRS SR830锁相放大器参数
Published on2026-06-11
SRS SR830是由美国 Stanford Research Systems（SRS）公司生产的数字双相锁相放大器，采用的是DSP技术，一般用于从强噪声中提取微弱交流信号，以下就是SRS SR830的参数详解。SRS SR830参数核心功能：能同时测量信号的同相分量（X）、正交分量（Y）、幅值（R）和相位（θ）频率范围：0.001Hz-102.kHz，支持内部DDS参考源或外部TTL/正弦参考，能检测2F-nF（n＜19999）谐波输入性能：灵敏度低至2nV，电流增益可选10⁶或10⁸V/A，输入噪声约6nV/√Hz（1 kHz），输入阻抗10MΩ动态储备：＞100dB，温度稳定性＜5ppm/℃，相位分辨率0.01°/0.004°时间常数与滤波：10μs-30ks，斜率能选6/12/18/24 dB/oct，内置50/60Hz-100/120Hz线路滤波接口和控制：GPIB和RS-232，支持远程编程，配备4路辅助模拟输入和4路可编程输出存储和现实：前面板 4½ 位 LED + 条形图，可同时显示双通道参数；内置9组非易失配置存储，双16k点缓冲区（512Hz更新率）用于数据记录。功率：40W尺寸：17" × 5.25" × 19.5"典型应用：光电流检测、低温物理、光谱学、生物电信号（如脑电/心电）、振动分析、激光调制探测等弱信号场景。注：SR830已停产，SRS官方推荐升级SR860多通道锁相放大器
Key Words：SRS SR830SR830SR830锁相放大器
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