Stanford SR850 Lock-In放大器 (1 mHz - 102.4 kHz)
制造商: Stanford Model: SR850 保障: 12 Month - 报价要求
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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: 10 MΩ + 25 pF, AC or DC coupled
Current input: 1 kΩ to virtual ground
Gain accuracy: ±1 % (±0.2 % typ.)
Noise:
6 nV/√Hz at 1 kHz
0.13 pA/√Hz at 1 kHz (106 V/A)
0.013 pA/√Hz at 100 Hz (108 V/A)
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
Demodulator:
Stability:
Digital outputs: no drift
Analog outputs: <5 ppm/°C for all dynamic reserves
Harmonic rejection: -90 dB
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)
-70 dBc (f > 10 kHz) at 1 Vrms
Amplitude: 0.004 to 5 Vrms into 10 kΩ (2 mV resolution)
Output impedance: 50 Ω
Amplitude accuracy: 1 %
Amplitude stability: 50 ppm/°C
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)
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.
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