技术与服务热线:400 820 0372

中国CN  

DL850 ASCII Waveform Data File Hysteresis Offset

Using the DL850, the waveform data was directly saved as an ASCII file in the *.CSV and *.WDF file format (NOT an Xviewer conversion). The sample files that have been provided contain the same waveform data, which is a total of 300,300 data points.
The ‘Trigger Time’ displayed in Xviewer using *.WDF header and the 'Time' row in Excel using the *.CSV file, represents the trigger time. The trigger time is shown at the center of the main acquisition window in Xviewer, and lies between two points. The trigger level was set to 0 volts exactly using narrow hysterisis. 

Within Xviewer the trigger's default position is located at the midpoint. This means that for even numbered data points, such as 300,300 in the sample file, the exact midpoint cannot be determined. Dividing the 300,300 data points in half, the midpoint lies between two points. The theoretical midpoint (trigger position) in Xviewer should be between: Sample No. 150,149 and 150,150. However, when the cursors are placed at Sample No. 150,149 and 150,150, the voltage level does not measure 0. In fact, the trigger has already occurred at a previous point. This offset in Xviewer is caused by narrow hysteresis set by the DL850.

As another example, in the *.CSV file the 0 volt trigger occurs at row #149,480 and should be at Sample No. 149,464 in Xviewer. However, when you place the cursor at Sample No. 149,464 in Xviewer, the measurement reads 583.33 uV. The actual 0 volt trigger in Xviewer occurs at Sample No. 149463. The trigger time is horizontally offset from the trigger-level due to the hysteresis offset and all DL scope products exhibit this effect.

相关产品和解决方案

数据采集设备

Yokogawa数据采集系统具备出众的灵活性和性能,能测量、显示、存储甚至促动各种物理和电气现象。

波形测量仪器

Yokogawa提供世界一流的数字示波记录仪:数字示波记录仪具有高速采样能力和大测量带宽,可用于设计和开发电子设备。示波记录仪集数字示波器和多通道数据记录仪的优点于一身。

示波器应用软件

使用Yokogawa的示波器应用软件查看、导出、分析和管理数据。

示波记录仪

我们的示波记录仪是灵活、强大的多通道测试和测量解决方案,将高精度示波器和传统有纸图表记录仪的优点集于一身。Yokogawa的示波记录仪除了能在它的大显示屏上显示信号之外,还可以将信号保存到记录纸和/或存储介质中以便长期储存(如30天或更长),此外它还可以捕捉并分析非常快的瞬变信号。

高速数据采集器和数采仪

Yokogawa高速数据采集系统提供业界领先的隔离、位分辨率、采样速率和存储长度,带有独立的通道硬件和使用简单的软件。是示波记录仪中最领先的技术。

返回顶部
WeChat QR Code
微信扫一扫
获得更多专业服务