The experiment designer interface allows users to quickly put together a study of phenomena using the control and readback elements that have been incorporated into a common interface.
Consider the example of a curve tracer for transistor CE output characteristics. It requires :
A ) Base current setting : A parameter that only needs to be set once per curve
B) Collector voltage setting : A parameter that needs to be swept from Voltage A to voltage B
C) Collector current monitoring : A parameter that needs to be read for each value of B
In addition, the user may require plotting and analytics.
Diode IV is being plotted based on the following schematic. CH3 monitors the voltage drop across the diode, and (PV1-CH3)/1K is the current flowing through it.
The derived channel section can also be used to add I2C sensors.
An analytics section is under active development.
The following screenshots illustrate the use of the experiment designer :
Tab#2 Consider the Diode IV experiment. We will need :
- A voltage source that will sweep the biasing voltage in a range that includes the expected knee voltage
- A Voltmeter that will measure the voltage drop across the diode
- A derived channel that uses
- Known Value of PV1
- Measured value of CH3
- Known resistance 1K
And Calculates the current flowing through the diode. I = (PV1 – CH3)/1000
Click on evaluate all rows to obtain readings for all values of PV1 voltage that we specified.
Select the channels to be plotted , and click on Plot
View the plots
Save the Data as either a text file, or an image