I have multiple RMX-4122 modules and would like to have the same time response to use the product for parametric current and voltage measurement for my device under test. But I noticed that the output voltages are inconsistent regarding ramp-up times, settle time, and voltage values.RMX-4122 Number 1:
Time, Voltage0.01,0.020.21,7.750.41,15.740.61,23.740.81,31.731.01,39.71.21,47.71.41,55.691.61,63.691.81,71.612.01,79.592.21,87.592.41,95.62.61,109.352.81,123.353.01,137.343.21,151.353.41,169.013.61,194.083.81,219.674.863,219.678RMX-4122 Number 2:Time, Voltage
0.01,00.21,7.810.41,15.810.61,23.810.81,31.771.01,39.751.21,47.71.41,55.71.61,63.651.81,71.652.01,79.662.21,87.642.41,95.632.61,102.722.81,109.013.01,114.243.21,119.083.41,147.25Why is this?
This is known behavior and is due to the software time timing added by LabVIEW, rising time, crossover point, and how the calls at a low level of the driver add delays, this cannot be corrected. But you can increase the level of determinism by understanding deeper the causes of this behavior and how the rise time specification works in the settling time of the system. With this be able to tune the system requirements and have predictive behavior.
There are multiple causes for this behavior:
The rise time is defined as the time period measured between 10% to 90% of the rated output.For example, the Rise Time for the RMX-4122 is 100 ms, thus this is the minimum time to get the voltage level to the desired state.
Collaborate with other users in our discussion forums
A valid service agreement may be required, and support options vary by country.