1mHz-102kHz频率范围
超低漂移
100dB动态储备(不加前置滤波器)
0.01度相位精度
数据记录(最高支持65K个采样样本)
10μs-30ks时间常数
6, 12, 18, 24dB/倍频程衰减速率
具有曲线拟合,平滑化和统计功能
数字解调器无非线性效应 1
6位D/A输出和A/D输入
合成参考振荡器
Signal Channel | |
Voltage inputs | Single-ended or differential |
Sensitivity | 2 nV to 1 V |
Current input | 106 or 108 V/A |
Input impedance |
|
Voltage input | |
Current input | 1 kΩ to virtual ground |
Gain accuracy | ±1 % (±0.2 % typ.) |
Noise | 6 nV/√Hz at 1 kHz |
Line filters | 50/60 Hz and 100/120 Hz (Q=5) |
CMRR | 100 dB at 10 kHz, decreasing by 6 dB/oct above 10 kHz |
Dynamic reserve | >100 dB (without prefilters) |
Reference Channel | |
Frequency range | 0.001 Hz to 102.4 kHz |
Reference input | TTL or sine (400 mVpp min.) |
Input impedance | 1 MΩ, 25 pF |
Phase resolution | 0.001° |
Absolute phase error | <1° |
Relative phase error | <0.001° |
Orthogonality | 90° ± 0.001° |
Phase noise |
|
Int. reference | <0.0001° rms at 1 kHz |
Ext. reference | 0.005° rms at 1 kHz, 100 ms, 12 dB/oct |
Phase drift | <0.01°/°C below 10 kHz, |
Harmonic detection | 2F, 3F, ... nF to 102.4 kHz |
Acquisition time | (2 cycles + 5 ms) or 40 ms, whichever is greater |
Demodulator | |
Stability |
|
Digital outputs | no drift |
Analog outputs | <5 ppm/°C for all dynamic reserves |
Harmonic rejection | -90 dB |
Offset/expand | ±100 % offset, expand up to 256× |
Time constants | 10 µs to 30 ks (6, 12, 18, 24 dB/oct rolloff). Synchronous filtering available below 200 Hz. |
Internal Oscillator | |
Range | 1 mHz to 102.4 kHz |
Accuracy | 25 ppm + 30 µHz |
Resolution | 0.01 % or 0.1 mHz (whichever is greater) |
Distortion | -80 dBc (f < 10 kHz) |
Amplitude | 0.004 to 5 Vrms into 10 kΩ (2 mV resolution) |
Output impedance | 50 Ω |
Amplitude accuracy | 1 % |
Amplitude stability | 50 ppm/°C |
Outputs | Sine and TTL (both can be phase-locked to an external reference) |
Sweeps | Linear and log |
Inputs and Outputs | |
Interfaces | IEEE-488.2, RS-232 and Centronics interfaces standard. All instrument functions can be controlled and read though the interfaces. |
X, Y outputs | ±10 V, updated at 256 ksamples/s |
CH1 output | ±10 V output of X, R or Trace 1 to 4 |
CH2 output | ±10 V output of Y, Θ or Trace 1 to 4 |
Aux. A/D inputs | 4 BNC inputs, 1 mV resolution, ±10 V |
Aux. D/A outputs | 4 BNC outputs, 1 mV resolution, ±10 V (fixed or swept amplitude) |
Sine out | Internal oscillator analog output |
TTL out | Internal oscillator TTL output |
Trigger In | TTL signal either starts internal oscillator sweeps or triggers instrument data taking (rates to 512 Hz). |
Remote pre-amp | Provides power to the optional SR550, SR552 and SR554 preamps |
Displays | |
Screen format | Single or dual display |
Displayed quantities | Each display shows one trace. Traces are defined as A×B/C or A×B/C2 where A, B, C are selected from X, Y, R, Θ, X noise, Y noise, R noise, Aux 1 to 4 or frequency. |
Display types | Large numeric readout, bar graph, polar plot or strip chart |
Data buffer | 64k data points. The buffer can be configured as a single trace with 64k points, 2 traces with 32k points each, or 4 traces with 16k points each. |
Sample rate | 0.0625 Hz to 512 Hz, external to 512 Hz |
Analysis Functions | |
Smoothing | 5, 9, 17, 21, 25 pt. (Savitsky-Golay) |
Curve fitting | Linear, exponential or Gaussian |
Calculator | Arithmetic, trigonometric and logarithmic calculations |
Statistics | Mean and standard deviation |
General | |
Hardcopy | Screen dumps to dot matrix or LaserJet printers. Plots to HP-GL plotters (RS-232 or GPIB). |
Data storage | USB drive. Storage of data and instrument setups (binary or ASCII). Screens can be saved as PCX files. |
Power | 60 W, 100/120/220/240 VAC, 50/60 Hz |
Dimensions | 17" × 6.25" × 19.5" (WHL) |
Weight | 40 lbs. |
Warranty | One year parts and labor on defects in materials and workmanship |
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