•Command: Edit/Modify
Edit the parameters associated with the active experiment.

•Command: Exclude
Use the mouse for drawing a rectangle around the current points which are to be excluded from data fitting. The command can be repeatedly applied. After releasing the mouse button all current point excluded from data fitting are plotted in red. For this reason red should not be selected as color for the active or inactive experiment.
 

•Command: Unmark Active Curve
Undoes the Exclude-command for the active experiment.

•Command: Unmark All Curves
Undoes the Exclude-command for all experiments shown in the Tabbed Window: Experiments.

•Command: Circles
The active current curve is plotted in the form of open circles.

•Command: Filled Circles
The active current curve is plotted in the form of filled circles.

•Command: Min/Max Info
Shows the E-I-couple referring to the minimum/maximum found in a rectangle of the screen display drawn by mouse.

•Command: Next Scan Segment
Activates the next scan segment If the active simulation consists of more than one.

•RAM-Disk Command: Import        
Select the use-files which are to be imported from RAM-Disk.

•File Command: Import      
Opens a Windows File Dialog for selecting use-file(s) imported into DigiElch.

•File Command: Import File (*.txt;*.dat;*.dta)
Opens a dialog box that can be used to configure an import-filter for importing experimental data files in ASCII-format (which are not compliant with DigiElchs native use-file format).
 

•RAM_Disk Command: RAM-Disk  
Opens a dialog box showing the actual content of the RAM-Disk. The RAM-Disk stores data in use-file format. It can be used for exporting simulations to the Tabbed Window: Experiments where they can used as target curves in a Data Fitting Project. In this way experimental curves can be mimicked by simulated ones, for instance, in order to investigate how  systematic errors such as noise are passed to individual parameter values when using these files in a fitting project.    
 

•RAM-Disk Command: Export      
Exports the active experiment in use-format and stores the use-file in the RAM-Disk.
 

•RAM-Disk Command: Export all Experiments to RAM-Disk
Exports all experiments shown in the Experiments-window in use-format and stores the use-files in the RAM-Disk.
 

•File Command: Export
Exports the active experiment as use- or txt-file analogously to exporting a simulation.

•File Command: Export all Experiments
Exports all experiments shown in the Tabbed Window: Experiments as use- or txt-files analogously to exporting all simulation.

Note that the export of data in use-format is only available when selecting the Option: Plot AC+DC. The export of the remaining current components can be done only as txt-file by selecting the desired plotting option before exporting the data.

•Command: Next
The next current curve is activated.
 

•Command: Previous
The previous current curve is activated.
 

•Command: Delete Active Experiment
Deletes the active experiment.

•Command: Delete All Experiments
Deletes all experiments shown in the Tabbed Window: Experiments.

•Command: Zoom
Zooms the screen display by pressing down the left mouse button and draw a rectangle around the region which is to be zoomed. The zoom command can be repeatedly applied.

•Command: Unzoom
Undo the zoom command.

•Command: Refresh Screen
Removes Min/Max-Info and redraws the screen display.

•Command: Rearrange Display Order  
Arranges the current curves according to the size of the peak current so that the curve with smallest peak current comes to the fore.
 

•Command: Add/Subtract
Opens a dialog box that can be used for selecting two of the current curves shown on the Tabbed Window: Experiments. Then a new experiment is created. The current curve of the new experiment is the sum or difference of the two selected curves.

•Command: Filter Setting  
Opens a dialog box that enables the user to customize the Fourier-Transform-Filter which is applied to the simulated current response according to the selected plot option (see below).
 

•Option: Plot AC + DC      
The unfiltered total total current is plotted.

•Option: Plot DC
Only the DC-component of the current (numerically filtered by Fourier transformation) is plotted.

•Option: Plot AC
Only the AC-component of the current (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 1. Harmonic
Only the Fundamental Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 2. Harmonic
Only the Second Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 3. Harmonic
Only the Third Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 4. Harmonic
Only the Fourth Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: User Defined
The Harmonic current component  defined by the user (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 1. Harmonic Envelope
Only the Envelope of the Fundamental Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 2. Harmonic Envelope
Only the Envelope of the Second Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 3. Harmonic Envelope
Only the Envelope of the Third Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot 4. Harmonic Envelope
Only the Envelope of the Fourth Harmonic current component (numerically filtered by Fourier transformation) is plotted.

•Option: Plot User Defined Envelope
Only the Envelope of the Harmonic current component defined by the user (numerically filtered by Fourier transformation) is plotted.

•Check Box: Apply to all Simulations
Controls whether the selected plot option is applied to all simulations or only to the active one.
 

Note that the export of data in use-format is only available when selecting the Option: Plot AC+DC. The export of the remaining current components can be done only as txt-file by selecting the desired plotting option before exporting the data.

The operation of some of these commands is shown in three video clips. Some commands peculiar to FT-CV simulations are demonstrated in the following video clip:

Topics

•Running a series of FT-CV simulations for an EC-mechanism

•Changing the plotting options

•Exporting the FT-CV simulations to the RAM-Disk

•Re-Importing the FT-CVs to use them as target curves in a Data Fitting Project

•Defining the starting parameters for the fitting procedure and selecting the parameters to be optimized

•Run data fitting by fitting the total AC + DC current

•Rerun data fitting by fitting the second harmonic AC current component

•Rerun data fitting by fitting the envelope of the third harmonic AC current component