Corona Discharge
★Exhibit Content: Tip discharge phenomenon, high-voltage electric field characteristics ★Interaction: Electromechanical interaction ★Operation: Press the "Start" button and observe the discharge phenomenon at the tip of the metal rod. ★Exhibit Description: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a button, and a protective cover. Two metal electrodes stand on the exhibit platform, one connected to positive and one to negative. Press the start button to energize, then one metal electrode begins to rotate. When the sharp needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. There is an angle between the sharp needles, so during rotation, continuous tip discharge can be generated between the two electrodes. ★Scientific Principle: Under the action of a strong electric field, areas with large surface curvature (such as the tips of sharp, small objects) have dense equipotential surfaces, and the electric field strength increases sharply, causing the nearby air to be ionized and produce gas discharge. This phenomenon is called corona discharge. Tip discharge is a type of corona discharge, specifically referring to the phenomenon of gas discharge caused by air ionization near the tip. Therefore, to observe the tip discharge phenomenon, in addition to sufficient high voltage, an appropriate shape match is also necessary to make it easy to achieve. The charge carried by a charged metal conductor is most dense at sharp parts. When the tips of two charged conductors carry dense opposite charges and are very close to each other, the high voltage formed between the tips will ionize the air between them, producing discharge sparks and a "crackling" sound. This is the principle of tip discharge.
Options
- 0.75×0.75×1.15 0.75×0.75×1.15Dimensions (unit: m): 0.75×0.75×1.15 Brand: KexMall Model: PopsciCat-ElectroMagnetic-031 1. Materials: ① Platform: frame 30 square tube, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Protective cover: transparent acrylic material, impact-resistant and easy to clean ④ Metal electrodes: metal material with good conductivity, surface anti-rust treatment ⑤ Instruction plate: 5mm acrylic UV printing ⑥ Electrical control box: cold-rolled sheet baked paint box, containing control circuit, switching power supply, circuit breaker, terminal blocks, etc. 2. Main configuration: ① Needle-shaped metal electrode assembly 1 set ② High-voltage generator 1 set ③ Control button ④ Electrical control system: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits 3. Installation requirements: ① Energy requirement: AC100-240V, 50/60Hz/300W ② Installation foundation: place directly, floor load-bearing ≥100kg/㎡ ③ Entry passage: door frame size (width×height) ≥1.0m×1.3m, continuous turning interval ≥1.5m ④ Maintenance access: not required
★Exhibit Content: Tip discharge phenomenon, high-voltage electric field characteristics ★Interaction: Electromechanical interaction ★Operation: Press the "Start" button and observe the discharge phenomenon at the tip of the metal rod. ★Exhibit Description: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a button, and a protective cover. Two metal electrodes stand on the exhibit platform, one connected to positive and one to negative. Press the start button to energize, then one metal electrode begins to rotate. When the sharp needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. There is an angle between the sharp needles, so during rotation, continuous tip discharge can be generated between the two electrodes. ★Scientific Principle: Under the action of a strong electric field, areas with large surface curvature (such as the tips of sharp, small objects) have dense equipotential surfaces, and the electric field strength increases sharply, causing the nearby air to be ionized and produce gas discharge. This phenomenon is called corona discharge. Tip discharge is a type of corona discharge, specifically referring to the phenomenon of gas discharge caused by air ionization near the tip. Therefore, to observe the tip discharge phenomenon, in addition to sufficient high voltage, an appropriate shape match is also necessary to make it easy to achieve. The charge carried by a charged metal conductor is most dense at sharp parts. When the tips of two charged conductors carry dense opposite charges and are very close to each other, the high voltage formed between the tips will ionize the air between them, producing discharge sparks and a "crackling" sound. This is the principle of tip discharge.
- 0.9*0.7*1.2m · Style 1 0.9*0.7*1.2mDimensions: 0.9*0.7*1.2m Brand: KexMall Model: PopsciCat-ElectroMagnetic-032 1. Materials: ① Platform: frame 2mm cold-rolled sheet, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction plate: 5mm acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet surface baked paint ⑤ Protective cover: transparent acrylic + custom color acrylic according to actual needs ⑥ Electrodes: aluminum alloy + stainless steel 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® K2 type PLC controller with protection specially for science exhibits ② Button: self-reset 22mm stainless steel metal button with ring light; LED voltage not higher than 12V ③ High-voltage power generator: TH5-A neon transformer. Input voltage: AC100-240V, 50/60Hz Rated output voltage: 15KV Rated load input current: 2A Rated output power: 30mA Rated capacity: 450VA Insulation class: E ④ Solid-state relay: SSR-4810DA rated parameters 10A250V INPUT: 3-32VDC OUTPUT: 24-480VAC ⑤ Rotating mechanism: 304 stainless steel, motor, cold-rolled sheet 3. Installation requirements: ① Energy requirement: AC100-240V, 50/60Hz300W (standard three-wire socket) ② Installation foundation: place directly ③ Entry passage: door frame size (width×height) ≥1.5m×2.0m, continuous turning interval ≥3m ④ Maintenance access: not required
★Exhibit Content: Tip discharge ★Interaction: Electromechanical interaction ★Operation: Press the "Start" button and observe the tip discharge phenomenon of the metal rod. ★Exhibit Description: The exhibit mainly consists of a platform, a rotating device, an electrode device, and a high-voltage generation system. A ring-shaped metal electrode, with the center pointer connected to high voltage and the outer device grounded. Both electrodes are equipped with several discharge needles perpendicular to the electrodes. The needles on the high-voltage electrode are arranged in parallel, while the needles on the grounded electrode are arranged in a spiral. Visitors press the start button to energize the high-voltage electrode. When the needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. ★Scientific Principle: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a rotating motor, and an operation button. Press the "Start" button, and the motor drives a set of needle-shaped metal electrodes to rotate. As the two needle electrodes gradually approach, a discharge phenomenon occurs between the tips of the two electrodes. The distribution of charge on a conductor is related to its surface shape. At sharp places on the conductor surface, the charge distribution is denser. When the charge accumulation reaches a certain density, a large electric field is generated, breaking down the air. In the exhibit, one electrode is connected to high voltage, and the other is grounded. As the two needles gradually approach, under the action of the strong electric field, the air near the tips is ionized, producing discharge sparks and a crackling sound.
- 1.1*0.6*1.2m · Style 1 1.1*0.6*1.2mDimensions: 1.1*0.6*1.2m Brand: KexMall Model: PopsciCat-ElectroMagnetic-033 1. Materials: ① Platform: frame 2mm cold-rolled sheet, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction plate: 5mm acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet surface baked paint ⑤ Protective cover: hot-bent curved transparent acrylic + custom color acrylic according to actual needs ⑥ Electrodes: aluminum alloy + stainless steel ⑦ Handwheel: acrylic + 304 stainless steel ⑧ 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® K2 type PLC controller with protection specially for science exhibits ② Button: self-reset 22mm stainless steel metal button with ring light; LED voltage not higher than 12V ③ High-voltage power generator: TH5-A neon transformer. Input voltage: AC100-240V, 50/60Hz Rated output voltage: 15KV Rated load input current: 2A Rated output power: 30mA Rated capacity: 450VA Insulation class: E ④ Solid-state relay: SSR-4810DA rated parameters 10A250V INPUT: 3-32VDC OUTPUT: 24-480VAC ⑤ Rotating mechanism: 304 stainless steel, motor, cold-rolled sheet 3. Installation requirements: ① Energy requirement: AC100-240V, 50/60Hz300W (standard three-wire socket) ② Installation foundation: place directly ③ Entry passage: door frame size (width×height) ≥1.5m×2.0m, continuous turning interval ≥3m ④ Maintenance access: not required
★Exhibit Content: Tip discharge ★Interaction: Electromechanical interaction ★Operation: Press the "Start" button, turn the handwheel, and observe the tip discharge phenomenon of the metal rod. ★Exhibit Description: The exhibit mainly consists of a platform, a rotating device, an electrode device, and a high-voltage generation system. A ring-shaped metal electrode, with the center pointer connected to high voltage and the outer device grounded. Both electrodes are equipped with several discharge needles perpendicular to the electrodes. The needles on the high-voltage electrode are arranged in parallel, while the needles on the grounded electrode are arranged in a spiral. Visitors press the start button to energize the high-voltage electrode. When the needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. ★Scientific Principle: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a rotating motor, and an operation button. Press the "Start" button, and the motor drives a set of needle-shaped metal electrodes to rotate. As the two needle electrodes gradually approach, a discharge phenomenon occurs between the tips of the two electrodes. The distribution of charge on a conductor is related to its surface shape. At sharp places on the conductor surface, the charge distribution is denser. When the charge accumulation reaches a certain density, a large electric field is generated, breaking down the air. In the exhibit, one electrode is connected to high voltage, and the other is grounded. As the two needles gradually approach, under the action of the strong electric field, the air near the tips is ionized, producing discharge sparks and a crackling sound.
- 0.9*0.7*1.2m · Style 2 0.9*0.7*1.2mDimensions: 0.9*0.7*1.2m Brand: KexMall Model: PopsciCat-ElectroMagnetic-034 1. Materials: ① Platform: frame 2mm cold-rolled sheet, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction plate: 5mm acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet surface baked paint ⑤ Protective cover: 2.0mm cold-rolled sheet surface baked paint + transparent acrylic ⑥ Electrodes: aluminum alloy + stainless steel 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® K2 type PLC controller with protection specially for science exhibits ② Button: self-reset 22mm stainless steel metal button with ring light; LED voltage not higher than 12V ③ High-voltage power generator: TH5-A neon transformer. Input voltage: AC100-240V, 50/60Hz Rated output voltage: 15KV Rated load input current: 2A Rated output power: 30mA Rated capacity: 450VA Insulation class: E ④ Solid-state relay: SSR-4810DA rated parameters 10A250V INPUT: 3-32VDC OUTPUT: 24-480VAC 3. Installation requirements: ① Energy requirement: AC100-240V, 50/60Hz300W (standard three-wire socket) ② Installation foundation: place directly ③ Entry passage: door frame size (width×height) ≥1.5m×2.0m, continuous turning interval ≥3m ④ Maintenance access: not required
★Exhibit Content: Tip discharge ★Interaction: Electromechanical interaction ★Operation: Press the "Start" button, push and pull the electrode, and observe the tip discharge phenomenon of the metal rod. ★Exhibit Description: The exhibit mainly consists of a platform, an electrode device, and a high-voltage generation system. A ring-shaped metal electrode, with the center pointer connected to high voltage and the outer device grounded. Both electrodes are equipped with several discharge needles perpendicular to the electrodes. The needles on the high-voltage electrode are arranged in parallel, while the needles on the grounded electrode are arranged in a spiral. Visitors press the start button to energize the high-voltage electrode. When the needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. ★Scientific Principle: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a rotating motor, and an operation button. Press the "Start" button, and the motor drives a set of needle-shaped metal electrodes to rotate. As the two needle electrodes gradually approach, a discharge phenomenon occurs between the tips of the two electrodes. The distribution of charge on a conductor is related to its surface shape. At sharp places on the conductor surface, the charge distribution is denser. When the charge accumulation reaches a certain density, a large electric field is generated, breaking down the air. In the exhibit, one electrode is connected to high voltage, and the other is grounded. As the two needles gradually approach, under the action of the strong electric field, the air near the tips is ionized, producing discharge sparks and a crackling sound.
- 1.1*0.6*1.2m · Style 2 1.1*0.6*1.2mDimensions: 1.1*0.6*1.2m Brand: KexMall Model: PopsciCat-ElectroMagnetic-035 1. Materials: ① Platform: frame 2mm cold-rolled sheet, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction plate: 5mm acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet surface baked paint ⑤ Protective cover: transparent acrylic + custom color acrylic according to actual needs ⑥ Electrodes: aluminum alloy + stainless steel 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® K2 type PLC controller with protection specially for science exhibits ② Button: self-reset 22mm stainless steel metal button with ring light; LED voltage not higher than 12V ③ High-voltage power generator: TH5-A neon transformer. Input voltage: AC100-240V, 50/60Hz Rated output voltage: 15KV Rated load input current: 2A Rated output power: 30mA Rated capacity: 450VA Insulation class: E ④ Solid-state relay: SSR-4810DA rated parameters 10A250V INPUT: 3-32VDC OUTPUT: 24-480VAC ⑤ Rotating mechanism: 304 stainless steel, motor, cold-rolled sheet 3. Installation requirements: ① Energy requirement: AC100-240V, 50/60Hz300W (standard three-wire socket) ② Installation foundation: place directly ③ Entry passage: door frame size (width×height) ≥1.5m×2.0m, continuous turning interval ≥3m ④ Maintenance access: not required
★Exhibit Content: Tip discharge ★Interaction: Electromechanical interaction ★Operation: Press the "Start" button, push and pull the electrode, and observe the tip discharge phenomenon of the metal rod. ★Exhibit Description: The exhibit mainly consists of a platform, an electrode device, and a high-voltage generation system. A ring-shaped metal electrode, with the center pointer connected to high voltage and the outer device grounded. Both electrodes are equipped with several discharge needles perpendicular to the electrodes. The needles on the high-voltage electrode are arranged in parallel, while the needles on the grounded electrode are arranged in a spiral. Visitors press the start button to energize the high-voltage electrode. When the needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. ★Scientific Principle: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a rotating motor, and an operation button. Press the "Start" button, and the motor drives a set of needle-shaped metal electrodes to rotate. As the two needle electrodes gradually approach, a discharge phenomenon occurs between the tips of the two electrodes. The distribution of charge on a conductor is related to its surface shape. At sharp places on the conductor surface, the charge distribution is denser. When the charge accumulation reaches a certain density, a large electric field is generated, breaking down the air. In the exhibit, one electrode is connected to high voltage, and the other is grounded. As the two needles gradually approach, under the action of the strong electric field, the air near the tips is ionized, producing discharge sparks and a crackling sound.
- 1.1*1.1*1.9m 1.1*1.1*1.9mDimensions: 1.1*1.1*1.9m Brand: KexMall Model: PopsciCat-ElectroMagnetic-036 1. Materials: ① Platform: frame 2mm cold-rolled sheet, enclosure 2.0mm cold-rolled sheet, surface baked paint ② Maintenance door: 2.0mm cold-rolled sheet surface baked paint ③ Instruction plate: 5mm acrylic UV printing ④ Electrodes: aluminum alloy + stainless steel ⑤ 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® K2 type PLC controller with protection specially for science exhibits ② High-voltage power generator: TH5-A neon transformer. Input voltage: AC100-240V, 50/60Hz Rated output voltage: 15KV Rated load input current: 2A Rated output power: 30mA Rated capacity: 450VA Insulation class: E ③ Rotating mechanism: 304 stainless steel, HF-PANDA motor, cold-rolled sheet ④ Solid-state relay: SSR-4810DA rated parameters 10A250V INPUT: 3-32VDC OUTPUT: 24-480VAC 3. Installation requirements: ① Energy requirement: AC100-240V, 50/60Hz500W (standard three-wire socket) ② Installation foundation: place directly, set up fence ③ Entry passage: door frame size (width×height) ≥1.5m×2.0m, continuous turning interval ≥3m ④ Maintenance access: not required
★Exhibit Content: Tip discharge ★Interaction: Electromechanical interaction ★Operation: Observe the tip discharge phenomenon of the metal rod. ★Exhibit Description: The exhibit mainly consists of a platform, a rotating device, an electrode device, and a high-voltage generation system. A ring-shaped metal electrode, with the center pointer connected to high voltage and the outer device grounded. Both electrodes are equipped with several discharge needles perpendicular to the electrodes. The needles on the high-voltage electrode are arranged in parallel, while the needles on the grounded electrode are arranged in a spiral. Energize the high-voltage electrode. When the needles on the two electrodes approach each other, a strong tip discharge phenomenon occurs. ★Scientific Principle: The exhibit consists of needle-shaped metal electrodes, a high-voltage generator, a rotating motor, and an operation button. Press the "Start" button, and the motor drives a set of needle-shaped metal electrodes to rotate. As the two needle electrodes gradually approach, a discharge phenomenon occurs between the tips of the two electrodes. The distribution of charge on a conductor is related to its surface shape. At sharp places on the conductor surface, the charge distribution is denser. When the charge accumulation reaches a certain density, a large electric field is generated, breaking down the air. In the exhibit, one electrode is connected to high voltage, and the other is grounded. As the two needles gradually approach, under the action of the strong electric field, the air near the tips is ionized, producing discharge sparks and a crackling sound.
Review
Principle Display: ★★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★