There are many creatures in nature that can generate electricity, including more than 500 species of fish. People call these fish that can discharge electricity “electric fish.”
Different electric fish have different discharge capacities. Those with the strongest discharge capacity are electric rays, electric catfish and electric eels. An average-sized electric ray can produce around 70 volts, while the African electric ray can produce up to 220 volts; the African electric catfish can produce 350 volts; the electric eel can produce 500 volts and there is a South American electric eel. It can produce voltages of up to 880 volts, making it the champion of electric shocks. It is said that it can kill large animals like horses.
What is the secret of the electric discharge of fish? After researches anatomical studies on electric fish, it was finally discovered that there is a strange energy-generating organ in the body of the electric fish. These generators are made up of many translucent disc-shaped cells called electroplates or electrodiscs. As there are different types of electric fish, the shape, location and number of electrical panels of the generator are different. The generator of the electric eel is prismatic and is located in the muscles on both sides of the spine; the electric ray generator is in the shape of a flat kidney, arranged on both sides of the midline of the body, with a total of 2 million electric plates; The catfish's electrical generator comes from a certain gland A, located between the skin and the muscles, with about 5 million electrical plates. The voltage generated by a single electric plate is very low, but since there are manyelectric plates, the voltage generated is very high.
The extraordinary ability of electric fish has aroused great interest among people. At the beginning of the 19th century, the Italian physicist Volta designed the world's first voltaic battery using the power-generating organ of the electric fish as a model. Because this battery is designed based on the electric fish's natural generator, it is called "artificial electric organ". Research on electric fish also gave this revelation: if the power-generating organ of electric fish can be successfully imitated, then the power problems of ships and submarines can be well solved.
The electric eel has two pairs of generators, long spindle-shaped and located on both sides of the spinal cord at the tail. The average voltage when discharging electric eels is more than 350 volts, but there arealso records discharge of 650 volts. The maximum voltage of the American electric eel reaches more than 800 volts, which is enough to kill a cow. The current generated by electric eels during discharge is extremely small, usually less than 1 ampere, however, sometimes a voltage of 500 volts and a current of 2 amperes is observed, that is, a short-term discharge with a power of 1000 watts; . Although it emits direct current, the discharge frequency can reach 300 pulses per second. The harmful power of the discharge depends on the size of the eel and the condition of the organism. When the eel is less than a meter long, the tension increases as the eel grows. When it reaches 1 meter, it only increases the intensity of the current. When electric eels hunt for food, they first swim quietly near a school of fish, then continuously emit electric current.ique. The fish that receive the electric shock immediately faint and become stiff, so the electric eels take advantage of this and devour them. Electric eels sometimes discharge electricity, not necessarily for hunting, but also for a physiological need. The amount of fish electrocuted by electric eels often exceeds what they need to eat, harming fish production. After an electric eel discharges, it needs a recovery period before it can discharge. Taking advantage of this feature, when fishermen catch electric eels, they first drive away their livestock. In the water, the electric eels are discharged and wait to consume electricity before fishing, which can save fishermen from having to to hurt yourself.
There is a biological cell called electroplate in the electric eel that suddenly allows a flowions to cross its cell membrane. There will be a considerable number of these cells from start to finish. The total voltage is therefore the sum of the potential differences of the electrical spots connected in series (the potential difference between the inside and the outside of a single electrical spot is 0.15 V. In this way, the voltage will reach a more objective value). From the beginning. Many such strings of electric spots are connected in parallel in the body of the eel. On the one hand, the parallel connection allows enough current to hunt food or scare away enemies, and on the other hand, it ensures that the current flowing between cells can maintain a current. low value. This is why electric eels can kill their prey without being harmed.
In fact, bioelectricity exists widely in various living organisms. As long as a special mechanism is formed to release it, or amplify itr, it has a discharge function.
Why can a bicycle modified pedal fitness generator can directly charge a 12V battery after rectification? Is it really safe without stable voltage?
It can be used. The in-situ power generation of the Song PLUS DM-i should be in position P. If you press the accelerator deeply, the motor will start producing electricity for the battery. When your feet are lifted, energy production will stop. want to leave, you must use an object to support the accelerator pedal. The front face shape of the Song PLUS DM-i is BYD's latest family style design. The large-area air intake grille looks full of momentum. The horizontal metal trim strip above is integrated with the BYD Song series logo, which not only adds a dynamic look. a feeling of refinement but also gives it a more elegant appearance. The whole carlooks more powerful. The LED headlights of the Song PLUS DM-i are embellished with blue trim, which makes the "eyes" more energetic, and the sense of technology is not inferior to other models of the same level.
The battery is equivalent to a large capacity capacitor and has a certain voltage stabilizing effect. It has a very good filtering effect on fluctuations caused by power frequency (equivalent to voltage stabilization) and has a very weak stabilizing effect on voltage fluctuations caused by pedaling speed. When the battery is discharged and just beginning to be charged, the voltage fluctuation has little effect on the battery. When the battery is almost full, if you cycle quickly for a long time, it will have an impact on the battery (battery). the battery is more likely to break). The arrow points towards the capacitor. Black ones can be wire capacitorsbe rectifier, and the blue ones can be battery energy storage buffer capacitors. Both can play a filtering and voltage stabilizing role, so it's best to have them (especially for small capacity batteries). The flywheel can stabilize the speed and thus stabilize the voltage to a certain extent.