仪器分类
低噪声电流放大器 Low Noise Current Amplifier
低噪声电流放大器 Low Noise Current Amplifier
仪器编号
2023103001366
SN序列号
162453
生产厂家
Stanford Research Systems
型号
SR570
制造国家
美国America
分类号
放置地点
TC-A4064
购置日期
2024-07-01
入网日期
2025-03-10

主要规格及技术指标

1. 电流测量范围
满量程电流:1 pA 至 1 mA(分多档可调)

动态范围:> 100 dB

2. 噪声性能
输入噪声:

低至 4 fA/√Hz(在 1 kHz 时)

极低的噪声设计,适合测量皮安级(pA)甚至更小的电流信号。

3. 增益
增益范围:10^3 至 10^11 V/A(分多档可调)

增益精度:±1%

4. 带宽
带宽范围:0.03 Hz 至 1 MHz(分多档可调)

带宽可调:用户可根据需要调整带宽以优化信噪比。

5. 滤波器
内置滤波器:

低通滤波器(6 dB/octave):0.03 Hz 至 100 kHz

高通滤波器(6 dB/octave):0.03 Hz 至 1 kHz

滤波器类型:贝塞尔滤波器(Bessel),提供平滑的频率响应。

6. 输入阻抗
输入阻抗:10^4 Ω 至 10^11 Ω(随增益设置变化)

7. 输出特性
输出电压范围:±10 V

输出阻抗:50 Ω

8. 偏置电压
偏置电压范围:±5 V(可调)

偏置电压分辨率:1 mV

9. 电源要求
电源电压:100-240 V AC,50/60 Hz

功耗:约 25 W

10. 工作环境
工作温度:0°C 至 40°C

存储温度:-20°C 至 60°C

湿度:< 80% RH(非冷凝)




1. Current measurement range
Full scale current: 1 pA to 1 mA (adjustable in several steps)

Dynamic range: > 100 dB

2. Noise performance
Input noise:

As low as 4 fA/√Hz (at 1 kHz)

Extremely low noise design, suitable for measuring picoampere (pA) or even smaller current signals.

3. Gain
Gain range: 10^3 to 10^11 V/A (adjustable in multiple steps)

Gain accuracy: ±1%

4. Bandwidth
Bandwidth range: 0.03 Hz to 1 MHz (adjustable in multiple steps)

Adjustable bandwidth: User can adjust the bandwidth to optimise the signal-to-noise ratio.

5. Filter
Built-in filters:

Low-pass filter (6 dB/octave): 0.03 Hz to 100 kHz.

High-pass filter (6 dB/octave): 0.03 Hz to 1 kHz

Filter type: Bessel filter (Bessel), providing a smooth frequency response.

6. Input Impedance
Input impedance: 10^4 Ω to 10^11 Ω (varies with gain setting)

7. Output Characteristics
Output voltage range: ±10 V

Output impedance: 50 Ω

8. Bias Voltage
Bias voltage range: ±5 V (adjustable)

Bias voltage resolution: 1 mV

9. Power supply requirements
Supply voltage: 100-240 V AC, 50/60 Hz

Power consumption: approx. 25 W

10. Operating Environment
Operating temperature: 0°C to 40°C

Storage temperature: -20°C to 60°C

Humidity: < 80% RH (non-condensing)

主要功能及特色

主要功能:可放大皮安级及更小的微弱电流信号;具备 1 pA 到 1 mA 的宽动态范围;带宽在 0.03 Hz 到 1 MHz 可调;内置低通和高通贝塞尔滤波器;偏置电压 ±5 V 可调;支持 GPIB 或 RS-232 接口远程控制;增益精度达 ±1% 。

主要特色:输入噪声低至 4 fA/√Hz(1 kHz 时);增益范围 10³ 到 10¹¹ V/A;前面板操作界面直观;多种滤波器选项;输入阻抗高达 10¹¹ Ω ;输入输出采用 BNC 接口;仪器设计紧凑;适用于多领域研究和工业应用。



Key Features: Amplifies weak current signals on the order of pico-amps and smaller; Wide dynamic range from 1 pA to 1 mA; Adjustable bandwidth from 0.03 Hz to 1 MHz; Built-in low-pass and high-pass Bessel filters; Adjustable bias voltage of ±5 V; Supports remote control via GPIB or RS-232 interfaces; Accuracy of gain up to ±1%.

Key features: input noise as low as 4 fA/√Hz (at 1 kHz); gain range of 10³ to 10¹¹ V/A; intuitive front panel interface; wide range of filter options; input impedance up to 10¹¹ Ω; BNC connectors for inputs and outputs; compact instrument design; suitable for a wide range of research and industrial applications.

主要附件及配置

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