What does the aluminum foil test assess in an ultrasonic cleaner?

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Multiple Choice

What does the aluminum foil test assess in an ultrasonic cleaner?

The aluminum foil test checks how evenly ultrasonic energy fills the cleaning chamber. When you run the cleaner with thin aluminum foil (often in loose sheets) in water, the foil’s movement and tearing reveal where cavitation is strong or weak. If energy is distributed evenly, the foil will move and tear in a uniform way across the chamber. If you see tearing concentrated in one area or little activity elsewhere, that indicates dead zones or hotspots—uneven cavitation caused by issues with transducers, mounting, or tank design. This test isn’t about how hot the chamber gets, nor about how strong the foil is, and it doesn’t directly measure cleaning performance, though uneven energy can lead to uneven cleaning.

The aluminum foil test checks how evenly ultrasonic energy fills the cleaning chamber. When you run the cleaner with thin aluminum foil (often in loose sheets) in water, the foil’s movement and tearing reveal where cavitation is strong or weak. If energy is distributed evenly, the foil will move and tear in a uniform way across the chamber. If you see tearing concentrated in one area or little activity elsewhere, that indicates dead zones or hotspots—uneven cavitation caused by issues with transducers, mounting, or tank design. This test isn’t about how hot the chamber gets, nor about how strong the foil is, and it doesn’t directly measure cleaning performance, though uneven energy can lead to uneven cleaning.

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