From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
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采样率 | 所有通道的采集频率 |
保持时间 | 保持所有SS/H通道和第一次模数转换之间的时间(3us) |
通道数 | 扫描列表里采样通道数(SS/H或否) |
MIO最小设置时间 | MSTm = 1 / (MIO最大采样率) |
SCXI最小设置时间 | MSTs = 1 / (最大数据选择速率) |
跟踪时间 | 当前扫描的最后一次模数转换和下次扫描SS/H通道保持的最小时间间隔(7us) |
设备 | 相对精度 | MSTs |
E系列数采卡(12-bit) | +/- 0.012% | 3 us |
E系列数采卡(16-bit) | +/- 0.0015% | 10 us |
SCXI-1520模块 | +/- 0.012% | 3 us |
SCXI-1530/1模块 | +/- 0.012% | 3 us |
SCXI-1140模块 | +/- 0.012% | 3 us |
最大精确扫描速率 = 1 / [ (通道数) * { 大于[保持时间] 或 [ sqrt((MSTm)^2 + (MSTs)^2)) ] } + (跟踪时间) ]
,这里最大精确扫描速率 = 1 / [ (保持时间) + ((通道数) - 1) * (MSTm) + (跟踪时间) ]
,这里最大精确扫描速率 = 1 / [ (保持时间) + ((通道数) - 1) * (MSTm) + (跟踪时间) ]
,这里
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