PiezoDrive PDUS210 Manual And Specifications page 23

17.7 Small Graphs
Time histories of the amplifier power, load power, temperature, impedance, and RMS current will
appear when the software is maximized. Most of these have a fixed scale.
17.8 Frequency Sweep Function
Click the sweep tab to enter the frequency response analysis mode.
Set Button – Sets the sweep controls to the following recommended settings:
• 50% of maximum output voltage.
• 10% of maximum output current.
• Frequency step = 100 Hz
• Settling time = 10 ms
• Averages = 10 (per frequency)
The above settings are a reasonable trade-off between
measurement speed and measurement resolution.
Transducers with a high Q-factor (Q > 100) may need the following
adjustments:
• Frequency step = 10 Hz (or less)
• Settling time = 100 ms (or longer)
For typical transducers, the frequency sweep will proceed with
active current regulation, i.e. the voltage will be varied proportional
to the load impedance, the approach provides maximum dynamic
range.
Max Voltage - The output voltage limit, in Volts RMS.
• Limits voltage when power or current tracking is enabled.
Max Current - The maximum load current, in Amps RMS.
• Limits current when power or current tracking is enabled.
Voltage - The nominal output voltage, in Volts RMS.
Start - Start frequency, in Hertz
End - End frequency, in Hertz
Step - The frequency step or the resolution of the sweep.
Settle Time – The time delay in milliseconds between frequencies
Averages – The number of averages for each frequency measurement.
PDUS210 V5 Manual 23 Modified 17/12/2022