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.