The number of channels of SE1354 multi-channel lock-in amplifier can be flexibly customized (up to 10 channels are optional), and the bandwidth is 100k or 500k optional; each channel is an independent and synchronous lock-in unit, and each channel contains: Voltage signal single-ended Input, voltage signal differential input, current signal input, TTL reference signal, sinusoidal reference signal input, TTL reference signal output, sinusoidal signal output, 2 auxiliary signal outputs and 2 auxiliary signal inputs.
The multi-channel lock-in amplifier SE1354 is a powerful tool specially developed for customers who need to measure multiple channels at the same time. Its excellent measurement accuracy and high integration make the customer’s system more integrated and measurement more convenient. Each channel can simultaneously realize the measurement of 1 fundamental wave and 7 harmonic demodulation channels. And 7 channels of harmonics can also be set to any frequency mode.
SE1354 Multichannel Lock-In Amplifier
Key Features
Number of channels 3 to 10 channels optional
Frequency range DC to 100kHz or 500kHz optional
1nV to 5V voltage measurement range
Time constants 1us to 3ks
Noise down to 5nV√Hz
8 arbitrary frequency demodulators per channel
Dynamic reserve up to 130dB
Communication interface: RS232, USB, network port
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Software Interface
- SE1354 multi-channel lock-in amplifier has shortcut graphic buttons and rich graphic operation functions.
- In addition, this software has clear numerical display and waveform display functions and can display measurement data in real time.
- The measurement results can be exported and saved in excel format for subsequent analysis by professional software. Handy.
- What’s more, we provide full support for Python, MATLAB, and LabVIEW application programming interfaces (APIs).
| 1. Signal Channel | |
| Voltage Input Mode | Single-ended or Differential |
| Full-scale Sensitivity | 1 nV to 5 V in a 1-2-5 sequence |
| Current Input | 106 V/A |
| Impedance | Voltage: 10 MΩ // 10 pF, AC or DC coupled Current: 1 kΩ to virtual ground |
| C.M.R.R | > 120 dB to 10 kHz, decreasing by 6 dB/oct |
| Dynamic Reserve | > 120 dB |
| Gain Accuracy | 0.2% typ, 1% max |
| Voltage Noise | 5 nV/√Hz at 997 Hz |
| Current Noise | 260 fA/√Hz at 997 Hz |
| 2.Reference Channel | |
| Input | Frequency range: 1 uHz to 500 kHz Reference input: TTL or Sine Input impedance: 10 MΩ |
| Phase | Resolution: 1 µdeg Absolute phase error: < 1 deg Relative phase error: < 0.01 deg Orthogonality: 90° ± 0.001° 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, <0.1°/℃ above 10 kHz |
| Harmonic Detection | 2F, 3F, …nF to 500 kHz (n<65,535) |
| Acquisition Time | Internal ref.: instantaneous acquisition External ref.: (3 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 | -75 dB |
| Time Constant | 1 µs to 3 ks (<200 Hz) (6, 12, 18, 24, 30, 36, 42, 48 dB/oct rolloff) |
| Synchronous Filters | Available below 20 Hz |
| 4. Internal Oscillator | |
| Frequency | Range: 1 mHz to 500 kHz Accuracy: 2 ppm + 10 µHz Resolution: 1 uHz |
| Distortion | -80 dBc (f < 10 kHz) -70 dBc (f > 10 kHz) |
| Amplitude | 100 nVrms to 5 Vrms |
| Accuracy | 1% |
| Stability | 100 ppm/℃ |
| Sine Output | Sine signal output impedance is 50Ω |
| TTL Synchronous | 5 V TTL/CMOS level |
| Output | output impedance 200Ω |
| 5. Clock Interfaces | 10 MHz clock input, 3.3 V TTL/CMOS |
| Clock Output | 10 MHz clock output |
| Internal | 3.3 V TTL/CMOS |
| 6. Communication Interfaces | RS-232: standard 9-array RS-232 female socket |
| USB2.0 | USB2.0 high-speed communication interface |
| 7. System Reference Interface | |
| Ref in System | reference signal input interface, 3.3 V TTL/CMOS |
| Ref out System | reference signal output interface, 3.3 V TTL/CMOS |
| 8. Outputs | |
| CH1 and CH2 Outputs | Function: output X, Y, R, θ Amplitude: ±10 V Impedance: 100 Ω |
| AUX Inputs | Function: 2 channel input Amplitude: ±10 V Impedance: 1 MΩ |
| 9. General | |
| Power Requirement | Voltage: 220 – 240 VAC Frequency: 50 Hz Power: 80 W |
| Dimension | 302 (W) × 177 (H) × 350 (D) mm (with feet) |
| Weight | 10kg |
Main Machine
| SE1354 | Multichannel Lock-In Amplifier | 100/500 kHz optional, 3 to 10 channels optional, 1 nV to 5 V voltage measurement range |
