SE1201 Small-sized Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 50 mHz to 120 kHz. With the high-speed 4-core architecture, high-precision ADC and excellent analog performance, SE1201 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noise. The performance of SE1201 is as good as other lock-in amplifiers brands, even better in some certain parameters, such as measurement accuracy, operating bandwidth, which meets the needs of scientific research and industrial application well.
SE1201 DSP Lock-In Amplifier
Key Features
50 mHz to 120 kHz frequency range
Low-noise current and voltage inputs
1 nV to 1 V full-scale sensitivity
Time constants from 10 µs to 3 ks
Up to 120 dB dynamic reserve
Noise as low as 9 nV/√Hz @997 Hz
Up to 100 dB CMRR
Dual-phase structure guarantees higher accuracy
3.5 inch color TFT-LCD screen, Small size (259*320*102 mm)
Support remote control, embedded a free LabVIEW program
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Multiple Application Areas
Scanning microscope: AFM, STM, SPM
Materials: Carrier mobility, Carrier density, Hall effect, Ultrasonic materials
Transport measurement: Conductivity measurement, Impedance measurement
Noise represents: Noise density, Cross-correlation measurement
Optical experiment: Spectral analysis, Spectral measurement, THz measurement, TDLAS
Sensor measuring: Gyroscope, Photoelectric sensor, Resonator, Accelerometer
Magnetic Sensor: SQUIDs, NV color center, Atomic Magnetometer, VSM
Biomedical: Microfluidic
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Trusted by Universities and Research Institutes Around the World!
Typical Customers:
• The Hong Kong Polytechnic University
• Universität Regensburg
• Rice University
• Weizmann Institute of Science
• University of Wisconsin-Madison
• Massachusetts Institute of Technology
• University of Texas at Austin
• Northeastern University
You can trust us !
| 1. Signal Channel | |
| Voltage Input Mode | Single-ended or Differential |
| Full-scale Sensitivity | 1 nV to 1 V in a 1-2-5 sequence 1 fA to 1 µA |
| Current Input | 106 or 108 V/A |
| Impedance | • Voltage: 10 MΩ // 25 pF, AC or DC coupled • Current: 1 kΩ to virtual ground |
| C.M.R.R | > 100 dB to 10 kHz, decreasing by 6 dB/oct |
| Dynamic Reserve | > 120 dB |
| Gain Accuracy | 0.2% typ, 1% max |
| Voltage Noise | 9 nV/√Hz at 997 Hz |
| Current Noise | • 0.13 pA/√Hz at 97 Hz • 0.14 pA/√Hz at 997 Hz |
| Line Filters | 50/60 Hz and 100/120 Hz |
| Gounding | BNC shield can be grounded or floated via 10 kΩ to ground |
| 2. Reference Channel | |
| Input | • Frequency range: 50 mHz to 120 kHz • Reference input: TTL or Sine • Input impedance: 1 MΩ//25 pF |
| Phase | • Resolution: 1 µdeg • Absolute phase error: < 1 deg • Relative phase error: < 1 mdeg • Phase noise: (Internal ref.) Synthesized, <0.0001°rms at 1 kHz; (External ref.) 0.005°rms at 1 kHz (100 ms time constant, 12 dB/oct) • Drift: <0.01°/℃ below 10 kHz, <0.5°/℃ above 10 kHz |
| Harmonic Detection | 2F, 3F, …nF to 120 kHz (n<32767) |
| Acquisition Time | • Internal ref.: instantaneous acquisition • External ref.: (2 cycles + 5 ms) or 40 ms, whichever is larger |
| 3. Demodulator | |
| Stability | • Digital output: no zero drift on all setting • Display: no zero drift on all setting • Analog output: <5 ppm/℃ for all dynamic reserve settings |
| Harmonic Rejection | -90 dB |
| Time Constant | • 10 µs to 3 ks (<200 Hz) • 10 µs to 30 s (>200 Hz) (6, 12, 18, 24 dB/oct rolloff) |
| Synchronous Filters | Available below 20 Hz |
| 4. Internal Oscillator | |
| Frequency | • Range: 50 mHz to 120 kHz • Accuracy: 2 ppm + 10 µHz • Resolution: 1 mHz |
| Distortion | • -80 dBc (f < 10 kHz) • -70 dBc (f > 10 kHz) |
| Amplitude | 0.10 to 1 Vrms |
| Accuracy | 1% |
| Stability | 100 ppm/℃ |
| Output | Sine output on rear panel, and TTL sync output on rear panel |
| 5. Interface | RS-232 and RS-232 to USB interface |
| 6. Outputs | |
| CH1 and CH2 Outputs | • Function: output X, Y, R, θ • Output voltage: ±5 V full scale, 30 mA max output current |
| 7. Display | |
| Screen | 3.5 inch, 320×240 TFT |
| Display Quantities | 4 channels of data to display X,Y,R,θ |
| Display Types | Numerical form |
| 8. General | |
| Power Requirement | • Voltage: 220 – 240 VAC, 100 – 120 VAC (optional) • Frequency: 50/60 Hz • Power: 20 W |
| Dimension | • 259 (W) × 115 (H) × 320 (D) mm (with feet) • 259 (W) × 102 (H) × 320 (D) mm (without feet) |
| Weight | 3.2 kg |
Main Machine
| Module No. | Item | Description |
| SE1201 | Digital Lock-in Amplifier | 50 mHz to 120 kHz, 1 nV to 1 V full-scale sensitivity |
