DS-2000 Frequently Asked Questions

Using a mathematical expression, calculations will be displayed. In the case of simultaneous measurements, the difference between the power spectra of channel 1 and channel 2 can be calculated using the following mathematical expression.

PWR1 and PWR2 refer to the power spectra of ch1 and ch2, respectively.

For power spectra saved in a file, the data is retrieved to the screen before performing calculations. The calculation formula can be input by clicking on the registered name of the screen data from the input data section of the formula settings screen, or by typing it on the keyboard. In a three-screen display, for example, the screen data corresponds to DISP1 to DISP3 from the upper left. The calculation formula is specified at the display position of the screen data.

This example shows how to call up saved data on screen 1 and screen 2, and display the calculation results on screen 3.

Measurement Example

• Set to 3-screen display on the 'Data Display → Layout Settings' page.
• Display the power spectrum of ch1 on Screen 1 in the 'Data Display → Input Source Settings' page.
  
• The power spectrum of the saved data will be displayed on Screen 2 in the 'File → Open Data' page.
  
  
• Click on the frame in Screen 3 (the third row) to make it active (the data text will change to blue).
• Open the "Analysis → Calculation Expression Settings" page, create the following calculation expression on Screen 3, check the box for "Calculation," and click the OK button to execute the calculation, which will then be displayed on Screen 3.

A: Power spectrum of screen 1
B: Power spectrum of screen 2

Calculation Expression Setting Screen

Display of calculation results