Back in the experimental building, Zhang Wenkai wiped the sweat on his head and said to Xiao Na: "Xiao Na, can the wireless charger go further?" ”

Without the matter of mobile phones, Zhang Wenkai has been thinking about this problem for the past few days, and he has launched the fourth generation of wireless chargers, so the fifth generation has begun to be developed.

Hearing Zhang Wenkai's inquiry, Xiao Na's projection was directly displayed in front of the holographic projector in the laboratory, and said to Zhang Wenkai: "Of course, you only need to increase the frequency conversion, but in this way, with the increase of distance, the greater the harm to people, and thirty meters is already the limit of the safe distance." ”

Xiao Na's explanation made Zhang Wenkai's heart cold, is it harmful to the body? Can't get any farther? These two sentences have been echoing in Zhang Wenkai's heart.

When a product is developed, it must be constantly updated and strengthened to better meet the needs of consumers and continue to earn benefits.

Have wireless chargers reached their limits? This can't be upgraded, what should I do? Zhang Wenkai has been thinking about this question.

"Isn't there any other way?" Zhang Wenkai asked Xiao Na a little depressed.

"Of course, there is, long-distance transmission can be achieved using a 'multi-frequency solenoid coil', and it is also harmless to the body." Xiao Na's words suddenly made Zhang Wenkai smile bitterly, but he didn't expect that he hadn't been teased by Xiao Na.

The depressed mood disappeared, and he looked at Xiao Na with some expectation and curiosity, Zhang Wenkai asked eagerly: "What kind of science and technology is that, tell me about it." ”

If this is the case, his wireless charger can be continuously upgraded, but Xiao Na's words completely dispelled Zhang Wenkai's plan to upgrade the wireless charger.

"Sir, the volume of the 'multi-frequency electromagnetic coil' produced by this technology can be as large as a coin on the home planet, but due to the limitations of science and technology and materials on the earth, it can only be as big as a manhole cover now."

How big is a manhole cover? Zhang Wenkai gestured with his hand to the size of the manhole cover, which is too big, even if it is made, it is useless!

Xiao Na seemed to see what Zhang Wenkai was thinking, so she continued: "But his distance can reach thirty kilometers. ”

Hearing Cortana say that it can reach thirty kilometers, Zhang Wenkai's mouth can be stuffed into a mouse, which is too far! How?

"The general technical principle is that the 'magnetic variable current' that is harmless to human beings is emitted through the electric variable frequency transmission terminal, and then the 'magnetic variable current' is restored to usable electricity through the 'multi-frequency electromagnetic coil', and then converted into usable electricity through the means of voltage transformation." Cortana explained

Xiao Na's explanation was a little complicated, Zhang Wenkai didn't understand it very well, so he said to Xiao Na: "I didn't understand, can you simplify it a little more." ”

Xiao Na, who originally wanted to continue to explain for Zhang Wenkai, subconsciously rolled her eyes when she heard Zhang Wenkai's question, as if she was too stupid to dislike Zhang Weiai.

"It's an enlarged version of the wireless charger, but with a transformer added to the receiving end." Cortana's words are a bit electronic.

Forehead! Since there is a way to achieve wireless transmission of thirty kilometers, it is necessary to give it a try.

"Tell me how." Zhang Wenkai asked directly.

Hearing that Zhang Wenkai became serious, Xiao Na also explained to Zhang Wenkai seriously: "We need to build a building similar to the condensate tower of a power station to be used as a power conversion frequency transmitter terminal. ”

Power station condensate tower? The short and thick chimney, this Zhang Wenkai still knows, if this is built, it is very simple, the land approved by the government is just used to build it.

"And then?" Zhang Wenkai then asked.

"Then there is the development of 'multi-frequency solenoid coils'." Cortana said as she displayed all the relevant information in front of the holographic projector.

Zhang Wenkai looked at the internal structure of the 'multi-frequency electromagnetic coil' and felt very complicated.

When he saw this 'multi-frequency electromagnetic coil' for the first time, Zhang Wenkai felt that he had seen it somewhere, thinking about it left and right, and finally remembered that it was somewhat similar to the arc reactor of Iron Man.

And through the schematic diagram projected by the holographic projector, Zhang Wenkai finally understood what was going on.

The general function is that the power variable frequency transmitter terminal is to emit electromagnetism similar to a wireless charger, and then convert the received electromagnetic into electric current through this 'multi-frequency electromagnetic coil', because what is received is not an electromagnetic, but countless kinds of electromagnetism, unify these electromagnetism, and turn it into usable electricity through the means of voltage transformation.

Seeing the information in front of him, Zhang Wenkai was a little excited, this is too sci-fi, and there are too many fields involved.

Since it takes time to build a power variable frequency transmitter terminal, it is necessary to get the 'multi-frequency electromagnetic coil' first.

Looking at the list of materials used in the 'multi-frequency electromagnetic coil', Zhang Wenkai had another headache, there were too many rare metal raw materials needed, but there should be all of them in the public laboratory.

Zhang Wenkai went downstairs directly and went straight to the public experimental building.

Seeing Ye Jialiang, Zhang Wenkai gave Ye Jialiang the list of materials used in the 'multi-frequency electromagnetic coil' in his hand and said, "Didn't you major in materials engineering before!" You prepare the materials for me according to this list, and send them directly to the laboratory of special ceramics, and I will wait for you over there. ”

After speaking, Zhang Wenkai left Ye Jialiang's laboratory and walked towards the laboratory of special ceramics.

It didn't take long for Zhang Wenkai to be thoroughly familiar with the equipment of special ceramics, and Ye Jialiang also sent the materials to the laboratory as well.

Looking at a large number of materials in front of him, bottles and cans, and simply familiarized himself with the materials needed for the 'multi-frequency electromagnetic coil', Zhang Wenkai put on a high-temperature safety suit, and then prepared the special ceramic equipment for preheating, and finally took out the design drawing of the 'multi-frequency electromagnetic coil' and looked at it carefully.

The TD-1K superconducting special ceramics processed from barium-yttrium-copper-xenon oxide, several currents move at high speed in the superconducting special ceramics to play a role in strengthening the voltage, which is what Zhang Wenkai wants to make.

And the shape of this superconducting specialty ceramic is a ring, somewhat similar to the luminous halo of an arc reactor.

Zhang Wenkai plans to manufacture this superconducting special ceramic first.

Several metal elements and gas elements were oxidized according to the requirements of the design drawing, and the most important components of ceramics were added silica, aluminum oxide and crystal water.

After taking a look at the preheating temperature of the special ceramic high-temperature furnace, Zhang Wenkai directly put the ceramics with barium-yttrium-copper-xenon oxide added into the ceramic high-temperature furnace for high-temperature cautery.

Half an hour passed, and the superconducting special ceramic ring used in the 'multi-frequency electromagnetic coil' had cooled, and Zhang Wenkai did not go directly to get it.

Instead, another special ceramic high-temperature furnace was opened, because Zhang Wenkai also needed to manufacture a special glass ring for insulating and reflecting the arc, which was used for insulation outside the superconducting special ceramic ring.

Zhang Wenkai looked at the fiery red in the high-temperature furnace, and couldn't help but feel a heat wave coming.

took out the previous superconducting special ceramic ring and put it on the test bench, looking at some golden yellow translucent special ceramics, Zhang Wenkai began to test whether the superconducting special ceramic ring met the requirements on the design drawing.

The superconducting special ceramic ring is about the size of a manhole cover, and it took a lot of effort for Zhang Wenkai to take it out of the high-temperature furnace.

After some careful inspection, fortunately, the superconducting special ceramic ring fully meets the specification requirements on the design drawing, and the insulating special glass has also cooled down at this time, and it has been tested again, and it is also qualified.

Zhang Wenkai directly called a few people to send the things downstairs to his laboratory building, and then Zhang Wenkai pushed the cart to transport these things directly to his laboratory.

Wiping a handful of sweat from his head, Zhang Wenkai poured a few sips of water fiercely, and then said to Xiao Na: "The materials are all ready, let's start!" ”

Zhang Wenkai began the production of the receiving device, the receiving device of this 'multi-frequency electromagnetic coil' is much stronger than the receiver of the wireless charger mobile phone, and the volume is not ordinarily large, just the size of the inner ring of the superconducting special ceramic ring.

According to the drawings, Zhang Wenkai welded step by step, and asked Xiao Na what problems he encountered, and Xiao Na also explained in detail to Zhang Wenkai, the spacious laboratory, after a while, there was a faint smoke in the room, of course, Zhang Wenkai at work did not have the time to pay attention to these small problems.

Looking at the receiving device welded according to the drawings, Zhang Wenkai had some questions, and didn't know how to test whether it was easy to use.

"Cortana, how do I test if the receiver is in good condition?" Zhang Wenkai directly asked the question in his heart.

"Sir, it's very simple, you just need to use our wireless charger to check the quality of the receiving device." Cortana's answer was simple.

Zhang Wenkai followed Xiao Na's request, first plugged in the wireless charger on the socket, then started the receiver, and then used a multimeter to test whether the receiver received current.

The results of the inspection made Zhang Wenkai very happy, fully qualified, Zhang Wenkai did not secretly rejoice in his heart, he didn't expect to be so lucky today, and there were some mistakes in the beginning of metal oxidation, and there were no major mistakes after that.

Embedding the receiving device on the superconducting special ceramic ring, Zhang Wenkai took out the annealed copper wire and began to wind it between the receiving device and the superconducting special ceramic ring, which needed to be made into a high-thickness coil.

Winding around and around, Zhang Wenkai was dizzy. On the way, Zhang Wenkai accidentally scratched his fingers, and when it was finally completed, Zhang Wenkai had already left a large wound on his hand, but Zhang Wenkai just wiped it with paper, this injury was not even a fart, Zhang Wenkai didn't care at all.

After completing the follow-up welding work, Zhang Wenkai directly pressed the special glass of insulation and reflecting arc on the outside of the superconducting special ceramic ring for the final sealing treatment.

Zhang Wenkai was a little excited in his heart, and he didn't know if the 'multi-frequency electromagnetic coil' he had completed was good? Turning his head and looking at Xiao Na's projection, Zhang Wenkai asked directly, "Xiao Na, how do I need to test?" ”……

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