The Invisible Force
Operation: Press the operation button and carefully observe the movement and changes of the metal ring. Function Overview: The exhibit consists of an electromagnetic coil, a metal ring, a control system, etc. When the operation button is pressed, the metal ring will jump up rapidly, demonstrating the principle of Lenz's Law. Scientific Principle: When alternating current passes through the coil, the coil generates an alternating magnetic field, and the aluminum ring generates a reverse eddy current and a corresponding magnetic field. The two magnetic fields are in opposite directions, causing the aluminum ring to jump up. Think about it: can the aluminum ring levitate if direct current is used?
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- 0.9×0.6×1.20 0.9×0.6×1.20Overall Dimensions: 0.9×0.6×1.20 Brand: KexMall Model: PopsciCat-Medium-047 Materials: ①Base: 2.0mm cold-rolled steel plate, dimensions not less than 0.75×0.45×0.7m, surface baked paint (or electrostatic powder coating), reserved foot openings for later height adjustment and four-corner balance, reserved AC female socket position for power supply to electrical exhibits ②Tabletop: high-quality flame-retardant fiberglass reinforced plastic, total thickness with edge ≧100mm ③Instruction sign: acrylic UV high-precision printing, thickness ≧3mm ④Maintenance door: 2.0mm cold-rolled steel plate, surface baked paint (or electrostatic powder coating) ⑤Protective cover: transparent acrylic + orange acrylic ⑥Demonstration device bracket: acrylic + 304 stainless steel Main Configuration: ①Electrical control: electrical logic control system, equipped with Guandian® K1 type PLC controller with protection specially for science exhibits ②Switching power supply: AC-DC S-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③Button: self-resetting 22mm stainless steel metal button with ring light; LED voltage not higher than 12V to avoid high voltage leakage risk; mechanical life: 1 million times; protection level: IP67; protection method: waterproof. Energy Requirement: AC100-240V, 50/60Hz 100W (standard three-wire socket)
Operation: Press the operation button and carefully observe the movement and changes of the metal ring. Function Overview: The exhibit consists of an electromagnetic coil, a metal ring, a control system, etc. When the operation button is pressed, the metal ring will jump up rapidly, demonstrating the principle of Lenz's Law. Scientific Principle: When alternating current passes through the coil, the coil generates an alternating magnetic field, and the aluminum ring generates a reverse eddy current and a corresponding magnetic field. The two magnetic fields are in opposite directions, causing the aluminum ring to jump up. Think about it: can the aluminum ring levitate if direct current is used?