Moku:Lab多功能测量仪之相位表可用于测量1kHz到200MHz之间输入信号的相位，精度为1μcycle（1μ周期）。
主要特色
1、测量两个输入信号之间的相位差，测量精度高于1μcycle（1μ周期）
2、在测量相位、频率和幅值之间进行选择
3、以高达125 kSa/s的速率采集数据
4、跟踪频率和相位干扰，Z高可达10kHz
Moku:Lab多功能测量仪之相位表的应用案例
Moku:Lab多功能测量仪之相位表的规格参数
Inputs
Input characteristics
Input frequency range | 1kHz - 200MHz |
Input voltage range | ±0.5 V into 50Ω |
Input impedance | 50Ω/1MΩ |
Input coupling | AC/DC |
Measurement
Measurement characteristics
Freq. Set-point precision | 3.55μHz | |
Modes of operation | Auto-acquire: Automatically determines input frequency | |
Manual: Initializes the phasemeter to a user-defined frequency | ||
Tracking bandwidth | 10Hz/40Hz/150Hz/600Hz/2.5kHz/10kHz (user selectable) | |
Frequency precision | Input Frequency | Precision (f=Fourier frequency) |
1kHz - 10MHz | f×10μHz/√Hz from 1mHz to 1kHz | |
10MHz - 100MHz | f×20μHz/√Hz from 1mHz to 1kHz | |
>100MHz | 20μHz/√Hz below 1Hz f×20μHz/√Hz from 1Hz to 1kHz | |
Phase precision7 | 1kHz - 10MHz | 100 nCycles/√Hz above 1Hz RMS |
10MHz - 100MHz | 2 μCycles/√Hz above 1Hz | |
>100MHz | 20μCycles/√Hz above 1Hz | |
7Frequency and phase measurement precision is limited by sampling jitter at low Fourier frequencies.
Saving Data
Saving data
Logging rates | 30 Sa/s, 120 Sa/s, 490 Sa/s, 1.95 kSa/s, 15.6 kSa/s, 125 kSa/s |
File formats | Plain text: records data using a standard CSV format |
Binary: records data using a proprietary LI format for high-speed data logging. Note: data saved using the LI format must be converted to plain text using the LI file converter available here: https://github.com/liquidinstruments/lireader | |
Maximum sampling rate | 1 MSa/s into RAM (format: *.li binary) 100 KSa/s into SD card (format: *.li binary) 20 KSa/s into RAM/SD card (format: *.csv) Note: data saved to the Moku:Lab’s on-board RAM will be lost when the device is rebooted. |
Export modes | SD Card, Dropbox, E-mail and iCloud, My Files (iOS 11) |
Delayed log start time | Up to 240 hours |
Log duration | 1 second up to 240 hours |
Synthesizer
Synthesizer8
Channels | 2 |
Output impedance | 50Ω |
Waveforms | Sine |
Output modes | Manual, input-locked |
Sampling rate | 1 GSa/s per channel |
Voltage range | ±1V into 50Ω |
8Where not stated, Phasemeter Synthesizer specifications match those of the Moku:Waveform Generator instrument.
Moku:Lab可用于使用外差检测和主动反馈来稳定两个激光器的相对频率和相位。 考虑以下光学系统，
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