Sound-Wave Lifting
★Exhibit Content: Demonstrate ultrasonic standing waves to achieve acoustic levitation of objects, and understand the physical phenomena of standing waves and acoustic radiation force. ★Interaction: Electromechanical interaction ★Operation: 1. Please press the [Start] button on the exhibit platform. 2. Carefully observe the foam particles inside the transparent protective cover. They will instantly be lifted by an invisible force, defying gravity, suspended in the air, and arranged into an orderly, three-dimensional pattern. ★Exhibit Description: This exhibit mainly consists of a square platform, an ultrasonic transducer array module, a lifting actuator, foam levitation particles, a start button, and a transparent protective cover. It is a recommended exhibit from the KexMall exhibit mall. When visitors press the start button, four sets of acoustic wave matrices synchronously emit ultrasonic waves, forming a stable standing wave field inside the chamber. Under the action of acoustic radiation force, the foam particles are trapped at the nodes, overcoming gravity to achieve levitation in the air, arranging into a three-dimensional orderly pattern, intuitively demonstrating the wonderful physical effect that sound can "grab" objects. ★Scientific Principle: Sound is essentially air vibration. This exhibit utilizes acoustic levitation technology. Four sets of acoustic wave matrices emit ultrasonic waves inaudible to the human ear. When sound waves meet and superimpose, standing waves are generated; within the standing wave space, there are low-pressure node regions and high-pressure antinode regions. The acoustic radiation force pushes lightweight foam particles from high-pressure areas to low-pressure node positions. The particles are confined at the nodes of the three-dimensional standing wave field to achieve levitation, proving that sound, in addition to transmitting information, can also generate mechanical force to manipulate objects.
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- Dimensions (L×W×H): 1.0×1.0×1.2m Brand: KexMall Model: PopsciCat-Wave-020 1. Materials: ① Platform: frame 2mm cold-rolled sheet, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: wood veneer with artificial stone, thickness ≥12mm ③ Instruction sign: 5mm thick acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet with surface baked paint ⑤ Protective cover: colored + high-transparency acrylic material, hot bending process, smooth edges, stable structure 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Guanjin® K1 type PLC controller with protection specially for science exhibits ② Ultrasonic transducer array module: four-channel ultrasonic emission unit, multi-directional synchronous output of high-frequency ultrasonic signals to construct a three-dimensional standing wave field ③ Lifting actuator: lead screw slide module, driving the acoustic component to achieve height adjustment, adapting to levitation experiment conditions ④ Levitation experiment particles: lightweight foam particles, as the suspended demonstration carrier, convenient for observing the levitation formation effect ⑤ Button: self-resetting 22mm stainless steel metal button with ring light, LED voltage not higher than 12V ⑥ Switching power supply: AC-DCS-150-24 input AC100-240V, 50/60Hz, output power 150W 3. Exhibition Requirements: ① Power requirement: AC100-240V, 50/60Hz 150W (standard three-wire socket) ② Installation foundation: directly placed on the operating table ③ Entry passage: door frame size (W×H) ≥1.0m×2.0m, continuous turning interval ≥2.5m ④ Maintenance passage: not required
★Exhibit Content: Demonstrate ultrasonic standing waves to achieve acoustic levitation of objects, and understand the physical phenomena of standing waves and acoustic radiation force. ★Interaction: Electromechanical interaction ★Operation: 1. Please press the [Start] button on the exhibit platform. 2. Carefully observe the foam particles inside the transparent protective cover. They will instantly be lifted by an invisible force, defying gravity, suspended in the air, and arranged into an orderly, three-dimensional pattern. ★Exhibit Description: This exhibit mainly consists of a square platform, an ultrasonic transducer array module, a lifting actuator, foam levitation particles, a start button, and a transparent protective cover. It is a recommended exhibit from the KexMall exhibit mall. When visitors press the start button, four sets of acoustic wave matrices synchronously emit ultrasonic waves, forming a stable standing wave field inside the chamber. Under the action of acoustic radiation force, the foam particles are trapped at the nodes, overcoming gravity to achieve levitation in the air, arranging into a three-dimensional orderly pattern, intuitively demonstrating the wonderful physical effect that sound can "grab" objects. ★Scientific Principle: Sound is essentially air vibration. This exhibit utilizes acoustic levitation technology. Four sets of acoustic wave matrices emit ultrasonic waves inaudible to the human ear. When sound waves meet and superimpose, standing waves are generated; within the standing wave space, there are low-pressure node regions and high-pressure antinode regions. The acoustic radiation force pushes lightweight foam particles from high-pressure areas to low-pressure node positions. The particles are confined at the nodes of the three-dimensional standing wave field to achieve levitation, proving that sound, in addition to transmitting information, can also generate mechanical force to manipulate objects.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★