40 kHz Ultrasonic Levitation Demonstrator — DIY or Assembled

Make a standing-wave experiment visible on the electronics bench. Opposing ultrasonic emitters can suspend suitable lightweight foam particles between them when the device and particle position are correctly set.

Choose your starting point

• Diy kit: option for assembly practice.
• Finished product: assembled-device option.
• Listed operating frequency: 40 kHz.
• Specified supply: DC 12 V, 0.5–1 A.

Use suitable small particles

Follow the supplied positioning method with lightweight foam particles around 2–3 mm. Particle size and placement affect whether a stable holding point can be found. Prepare the specified power supply and follow the operating guidance; this is a small-particle demonstration rather than a general object-lifting device.