FAQ: After analyzing a refurbished converter for the second time, I observed its frequency increased regarding the previous result (Fa increased to 22 kHz), what is the explanation for this increase? How to avoid it?
Frequency increase in an ultrasonic converter after 1 day of assembly (print from the TRZ® Software).
Unlike sonotrodes and boosters, converters’ frequency increases over time after assembling before stabilizing, which may take up to a couple of days. It is not possible to avoid this process, but you can speed it up by thermal cycling and by driving the converter at low power. The frequency increase occurs because of coupling improvement on the multiple interfaces between metallic masses, electrodes and piezo ceramics. It is important to let new converters stabilize before final tuning, or learn the frequency typical change in order to compensate at the manufacturing.
FAQ: We have an ultrasonic horn with different power ranging from 2000 to 6000 Watts, can TRZ® Analyzer drive all this range? Mr. F.K.
Yes, you can test ultrasonic horns ranging from 2000 to 600 Watts with TRZ® Analyzer. Note: TRZ® Analyzer apply only low voltage/power and is able to test any converter, stack or horn within 1-200 kHz frequency range, regardless the maximum power.
Learn more about testing converters and acoustic stacks.
Learn more about preventive maintenance of ultrasonic acoustic stacks.