Zurich Instruments
HF2LI 50 MHz Lock-in Amplifier 鎖相放大器
主要特徵
- 測量範圍為 DC 至 50 MHz
- 精確測量兩個差分電壓訊號
- 同時解調多達 6 個諧波
- 快速測量時間和低本底噪聲
- 具有多個輔助輸入/輸出的可設定性
- LabOne ®工具集包括示波器、掃描器和頻譜分析儀
- 透過升級選項擴展您的工具集
規格
Lock-in operating modes
| Internal reference mode | Single and dual lock-in |
| External reference mode | Single and dual lock-in |
| Auto reference mode | Single and dual lock-in |
| Dual-harmonic mode | 1 fundamental + 2 harmonics (simultaneous) |
| Multi-harmonic mode | 1 fundamental + 5 harmonics (simultaneous), with HF2LI-MF |
| Arbitrary frequency mode | 6 frequencies, with HF2LI-MF |
HF analog input
| Frequency range | DC – 50 MHz |
| Input impedance | 50 Ω or 1 MΩ || 20 pF |
| Input noise voltage | 5 nV/√Hz (above 10 kHz) |
| Dynamic reserve | 120 dB |
| Input range | ±3.3 V |
| Input AC range | ±1.5 V (with DC coupling) |
| Input full range sensitivity | 1 nV to 1.5 V |
| A/D conversion | 14 bits, 210 MSa/s |
HF analog output
| Frequency range | DC – 50 MHz |
| Output ranges | ±10 mV, ±100 mV, ±1 V, ±10 V |
| Signal adder | ±10 V, DC to 50 MHz bandwidth |
| D/A conversion | 16 bits, 210 MSa/s |
Demodulator and reference
| Number of demodulators | 6 dual-phase |
| Output sample rate | On USB: up to 460 kSa/s On auxiliary outputs: 1 MSa/s |
| Filter time constant | 1 µs – 500 s |
| Filter bandwidth | 83 µHz – 200 kHz |
| Filter slope | 6, 12, 18, 24, 30, 36, 42, 48 dB/Oct |
| X, Y, R, Theta | 64-bit full range |
| Reference frequency resolution | 0.7 µHz |
| Reference phase angle resolution | 1.0 µ° |
Scope
| Input channels | Signal inputs, signal outputs |
| Scope modes | Time domain, frequency domain (FFT) |
| Number of display channels | 1 |
| Trigger channels | Signal inputs, signal outputs, oscillator phases, DIOs |
| Trigger modes | Edge |
| Sampling rates | 6.4 kSa/s to 210 Msa/s |
| Vertical resolution | 14 bits |
| Maximum number of samples per shot | 2048 |
| Bandwidth limit mode, vertical resolution increase | Sample decimation, averaging |
| Cursor math | Location, area, wave, peak, tracking, histogram |
Spectrum Analyzer
| Center frequency range | 0 – 50 MHz |
| Spectrum modes | FFT(X+iY), FFT(R), FFT(Θ), FFT(f) and FFT((dΘ/dt)/2π) |
| Statistical options | Amplitude, spectral density, power |
| Averaging modes | None, exponential moving average |
| Maximum number of samples per spectrum | 8.4 MSa |
| Maximum span | 460 kHz |
| Window functions | Rectangular, Hann, Hamming, Blackman Harris |
| Cursor math | Location, area, wave, peak, tracking, histogram |
Sweeper
| Scan parameters | Oscillator frequency, demodulator phase shift, auxiliary offset, signal output amplitudes, etc. |
| Parameter sweep ranges | Full range, linear, logarithmic |
| Parameter sweep resolution | Arbitrary, defined by start/stop value, number of sweep points |
| Display parameters | Demodulator output (X, Y, R, Θ, f), auxiliary input |
| Display options | Single plot, dual plot (e.g., Bode plot), multi-trace |
| Statistical options | Amplitude, spectral density, power |
| Preset measurement modes | Parameter sweep, noise amplitude measurement, frequency response analyzer, 3-omega-sweep |
Auxiliary signals
| High-speed outputs | 4 channels, ±10 V, amplitude, phase, frequency, X/Y, or user-defined |
| D/A converter | 16 bits, 1 MSa/s |
| D/A analog bandwidth | 200 kHz |
| High-speed inputs | 2 channels, ±10 V |
| A/D converter | 16 bits, 400 kSa/s |
| A/D analog bandwidth | 100 kHz |
Other interfaces
| Host connection | USB 2.0, 480 Mbit/s |
| Pre-amplifier control bus | ZCtrl proprietary bus to control external pre-amplifiers |
| Synchronization bus | ZSync proprietary bus to locally interconnect ZI instruments |
| Digital I/O | 32 bits, general purpose |
General
| Dimensions | 45 x 35 x 10 cm (19″ rack) |
| Weight | 6.2 kg |
| Power supply | 110-120 V, 220-240 V, 50/60 Hz |
| Operating temperature | +5 °C to +40 °C |
| Operating environment | IEC61010, indoor location, installation category II, pollution degree 2 |
| Operating altitude | Up to 2000 m |
| Internal oscillator output | Sine, ±1 V, 10 MHz |
| Internal oscillator initial accuracy | ±1.5 ppm |
| Internal oscillator temperature coefficient | 0.05 ppm/C |
