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8861-50 参数 Datasheet PDF下载

8861-50图片预览
型号: 8861-50
PDF下载: 下载PDF文件 查看货源
内容描述: 存储记录仪 [MEMORY HiCORDER]
分类和应用: 存储
文件页数/大小: 16 页 / 2428 K
品牌: ASM-SENSOR [ ASM GMBH ]
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9
Specify an analysis point  
Waveform in the MEM function  
Perform FFT calculation on the waveform from the MEM function  
When performing FFT analysis on the data obtained by measurement with the  
MEM function, you can use the jog shuttle to specify an analysis point and view  
the calculation results on the same screen. Unlike with the conventional 8855 and  
8841 models, you do not need to switch between the MEM function and FFT  
function screens to set the starting point of calculation. Furthermore, the display of  
“Raw Data” obtained by measurement with the MEM function and the calculation  
results of “Storage Waveform” on the same screen allows you to view the effect of  
the window function and the spectrum waveform on the same window, thus greatly  
enhancing operability for analysis.  
n Rich Analysis Capabilities  
Power spectrum density  
You can obtain  
Power Spectrum Density and LPC Analysis have been added to  
the calculation selections, for measuring power spectrum per Hz  
and spectral envelopes. As for calculation settings, former concepts  
such as “Channel Modes” have been eliminated, and channel  
settings are now automatically set according to the selected  
calculation type, eliminating otherwise complex settings.  
a
power  
s p e c tr u m p e r H z w h e n  
analyzing signals spread over  
a wide area, such as noise.  
Power spectrum density (LPC  
analysis)  
The most appropriate spectrum  
is estimated using the statistical  
method.  
n Change the count of calculation points and perform re-calculation  
after measurement ends  
After measurement is performed using less calculation points, you can  
change the point count and perform re-analysis. For example, if you  
perform measurement using 1,000 calculation points, you can then  
convert point count to 20,000 to perform re-analysis on the data. In  
this case, the frequency resolution increases 10 times. Needless to say,  
you can convert the point count to 1,000 to perform re-analysis on the  
data obtained by performing measurement using 20,000 points.  
* Re-calculation by changing the point count cannot be performed when Mean Frequency is set to ON.  
1,000 points  
Convert 1,000 to 10,000 points  
n Scaling in “dB”  
The long desired capability to scale in dB is supported. You no  
longer need to perform logarithmic calculation holding a calculator  
in one hand. The 8860-50 and 8861-50 models allow you to  
enter the overall value (sum of power spectrum values) in dB,  
thus making scaling easier. This enables  
Before scaling  
signals to be easily read directly from, for  
example, a noise meter.  
After scaling  
 复制成功!