Portable multifunctional demonstrator of electric shock and explosions
A multifunctional and portable technology, applied in the field of physical teaching aids, can solve the problems of single function and inconvenient operation, and achieve the effect of improving learning effect, simple device and vivid image
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Embodiment 1
[0041] Embodiment 1: When performing an electric shock demonstration, open the storage box 18, take out the bottom plate 1, first close the low-voltage switch, the low-voltage booster module 3 boosts the voltage to 50V, and contacts the first touch electrode 5a and the second touch electrode 5b at the same time. You can feel the electric shock phenomenon, then, two students touch the first touch electrode 5a and the second touch electrode 5b respectively, and the other two hands touch each other, you can feel the indirect single-line electric shock, turn off the low-voltage switch, first turn the rotary switch 10, the rotary switch 10 is on Slide the inside of the sliding groove 9 to make the rotary switch 10 contact with the arc electrode 7, close the high-voltage switch and reset switch 16, the oscillator works, an oscillating current is generated in the circuit, and a high voltage of about 50,000 volts is output through the high-voltage step-up transformer, and the rotary han...
Embodiment 2
[0042] Embodiment 2: When performing a gas explosion demonstration, open the placement box 18, take out the bottom plate 1, and fix the gas cylinder 8 on the gas detonation table 11, the first gas explosion detonation discharge needle 12a and the second gas explosion detonation discharge needle 12b pass through the gas detonation The center of the table 11 passes through the bottom of the gas cylinder, the height is not less than 8 cm, so that the electric spark can be located at the center of the gas cylinder 8, and the rotary switch 10 is rotated to make the rotary switch 10 contact with the second gas explosion initiation discharge needle 12b, and the gas A small amount of combustible gas (alcohol, gasoline, ether, sherwood oil etc.) is passed in bottle 8 inside, and cover bottle cap. Close the high-voltage switch and reset switch 16, and boost the voltage to about 50,000 volts or more through the high-voltage booster module 3 to ensure that continuous electric sparks are ge...
Embodiment 3
[0043] Embodiment 3: When performing a dust explosion demonstration, open the placement box 18, take out the bottom plate 1, rotate the rotary switch 10, make the rotary switch 10 contact with the first dust explosion detonation discharge needle 17a, take an appropriate amount of dry flour, aluminum powder is equal to the In the funnel 133, fasten the cover body 132 on the upper end of the bottle body 131, close the high-voltage switch, pump air with the pump 15, and blow the dust in the bottle body 131 at the air outlet of the rubber tube 14 to raise the dust. Start, press the reset switch 16 at the same time, the first dust explosion detonation discharge needle 17a and the second dust explosion detonation discharge needle 17b generate continuous electric sparks between the two poles, and the phenomenon of dust explosion inside the bottle body 131 can be observed.
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