Stroboscopic Wheel
★Exhibit Content: Popular science on persistence of vision and stroboscopic effect principles ★Interaction: Electromechanical interaction ★Operation: 1. Press the "Start" button and observe the letters on the rotating disk; 2. Turn the knob to adjust the strobe light frequency; 3. Observe the positions of the letters on the rotating disk at different frequencies. ★Exhibit Overview: The exhibit consists of a strobe light, pattern board and drive mechanism, adjustment knob, frequency display digital meter, protective cover, exhibit stand, etc. It is a recommended exhibit from the KexMall exhibit mall. Press the start button, the pattern disk starts rotating, and the strobe light begins flashing. By changing the frequency of the strobe light with the knob, the letters on the disk can appear stationary, rotating clockwise, or rotating counterclockwise. ★Scientific Principle: Why can the letters on the disk be clearly displayed under a strobe light at a certain frequency? When the human eye observes a scene, light signals are transmitted to the brain through the optic nerve to form vision, but after the light action ends, the visual image in the brain does not disappear immediately, but stays for 0.1 to 0.4 seconds. This is the persistence of vision phenomenon of the human eye. The strobe light flashes at a certain frequency. By adjusting the strobe frequency, if the strobe light frequency matches the motor speed, the letters on the disk will tend to be stationary or move slowly. This is mainly because if the disk is in the same position at each flash, it gives the impression that the letters are "stationary". But if the disk letters stay in different positions at each flash, they appear to move slowly forward or backward. This principle can be used to detect the speed and stability of electric fans, measure the flow rate and direction of water droplets, etc.
Options
- 0.9×0.7×1.1m 0.9×0.7×1.1mOverall dimensions: 0.9×0.7×1.1m Brand: KexMall Model: PopsciCat-optics-147 1. Materials: ① Exhibit stand: stand, base frame: 30 square tube, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelaisi artificial stone, thickness ≥12mm, backed with flame-retardant board ③ Instruction sign: acrylic UV printing ④ Tabletop fixing parts: standard triangular lock ⑤ Protective cover: colored + high-transparency acrylic material, hot bending process, smooth edges, stable structure ⑥ Strobe light: digital stroboscope ⑦ Electrical control box: cold-rolled sheet baked paint box, containing control circuit, switching power supply, circuit breaker, terminal blocks, etc. 2. Main configuration: ① Electrical control: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-reset 22mm stainless steel metal button with ring light ④ Motor: DC12V, 3000r ⑤ Microcontroller control module: Wenzhou Huoyanjinjing special customization ⑥ Demonstration device: pattern disk, adjustment knob, frequency display digital meter 3. Exhibition requirements ① Energy demand: AC100-240V, 50/60Hz200W (standard three-wire socket, reliable grounding) ② Installation foundation: direct placement ③ Entry passage: door frame dimensions (width×height) ≥1.0m×1.2m, continuous turning interval ≥2m ④ Maintenance passage: not required
★Exhibit Content: Popular science on persistence of vision and stroboscopic effect principles ★Interaction: Electromechanical interaction ★Operation: 1. Press the "Start" button and observe the letters on the rotating disk; 2. Turn the knob to adjust the strobe light frequency; 3. Observe the positions of the letters on the rotating disk at different frequencies. ★Exhibit Overview: The exhibit consists of a strobe light, pattern board and drive mechanism, adjustment knob, frequency display digital meter, protective cover, exhibit stand, etc. It is a recommended exhibit from the KexMall exhibit mall. Press the start button, the pattern disk starts rotating, and the strobe light begins flashing. By changing the frequency of the strobe light with the knob, the letters on the disk can appear stationary, rotating clockwise, or rotating counterclockwise. ★Scientific Principle: Why can the letters on the disk be clearly displayed under a strobe light at a certain frequency? When the human eye observes a scene, light signals are transmitted to the brain through the optic nerve to form vision, but after the light action ends, the visual image in the brain does not disappear immediately, but stays for 0.1 to 0.4 seconds. This is the persistence of vision phenomenon of the human eye. The strobe light flashes at a certain frequency. By adjusting the strobe frequency, if the strobe light frequency matches the motor speed, the letters on the disk will tend to be stationary or move slowly. This is mainly because if the disk is in the same position at each flash, it gives the impression that the letters are "stationary". But if the disk letters stay in different positions at each flash, they appear to move slowly forward or backward. This principle can be used to detect the speed and stability of electric fans, measure the flow rate and direction of water droplets, etc.
Review
Principle Display: ★★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★