Specify The Settings Of The Post Processing Function - Fluke CombiScope PM3370B User Manual

3 - 46
TRACe
SENSe
3.9.1.2

Specify the settings of the post processing function.

When desired, specify the settings of the post processing function to be used. The
following settings can be programmed:
- the filter type of the FFT function
- the width of the low-pass filter window
- the width of the differential window
Example:
→
Send CALCulate2:TRANsform:FREQuency:WINDow HAMMing
'Defines the Hamming filter for the FFT process.
3.9.1.3 Enable the post processing function.
Enable the desired post processing function by using the :STATe command of the
calculate function concerned. The following post processing functions are
available:
STANDARD AVAILABLE:
- mathematical calculations
- frequency filtering
- frequency domain transformations (FFT)
OPTIONAL:
- histogram transformation
- integrating traces
- differentiating traces
Example:
→
Send CALCulate2:TRANsform:FREQuency:STATe ON
The post processing is automatically executed when a trace that is fed into the
CALCulate function is changed. If a mathematical function is switched on, the
other functions are automatically switched off.
CH 1 M1_1
CH 2 M1_2
CH 3 M1_3
CH 4 M1_4
Figure 3.18 Post processing feed definition
USING THE COMBISCOPE INSTRUMENTS
M2_1 M3_1
M2_2 M3_2
M2_3 M3_3
M2_4 M3_4
CALCulate:FEED "M3_2"
CALCulate2:FEED "M2_4"
RECTanguler | HAMMing | HANNing
3, 5, 7, .., 39, 41 points
3, 5, 7, .., 127, 129 points
:MATH
:FILTer:FREQuency
:TRANsform:FREQuency
:TRANsform:HISTogram
:INTegral
:DERivative (alias :DIFFerential)
CALCulate
M50_1 CALCulate[1]
M50_2
M50_3
M50_4 CALCulate2
'Enables FFT
ST7162