Cultivate a black technology god

Chapter 158 The Gyroscope Rolls Up
A month has passed, and the popularity of aircraft in Sucheng has gradually declined, and more and more aircraft have entered major cities.

The convenience and safety of aircraft have promoted the construction of smart cities. Many cities that were originally unwilling to allow Zhixia Technology to build smart city systems as a third party have also submitted contracts to Zhixia Technology.

The smart city system of Zhixia Technology has blossomed nationwide.

They even went abroad and started building in many foreign cities.

In the implementation of this smart city platform, Zhixia Technology's operating system has also further popularized science.

The status of systems such as Microsoft Apple Android is at stake.

There are more and more manufacturers researching aircraft on the market. The School of Physics of Zhixia University of Science and Technology has also established a department specializing in the study of balance systems.

Under the competition of all parties, the aircraft provided by Aerofex had to make concessions and lowered the price of the aircraft to 80.

Even so, considering the high-energy batteries provided by Zhixia Technology and the operating costs of smart cities, the price of an aircraft is not affordable for ordinary families.

Zhixia Technology, conference room.

A group of manufacturers are in the process of bidding. They come up with the technology and price list from their factory, and they are going to take the purchase contract of Zhixia Technology's next aircraft.

A representative of a manufacturer of fiber optic gyroscopes came to the stage to introduce their technology:
"As we all know, traditional inertial gyroscopes mainly refer to mechanical gyroscopes. Mechanical gyroscopes have high requirements for process structures and complex structures, and their accuracy is restricted by many aspects.

The fiber optic gyroscope is a sensitive element based on a fiber optic coil, and the light emitted by a laser diode propagates along the fiber optic fiber in two directions.The difference in the light propagation path determines the angular displacement of the sensitive element.

Compared with the traditional mechanical gyroscope, the fiber optic gyroscope has the advantages of all solid state, no rotating parts and friction parts, long life, large dynamic range, instant start, simple structure, small size and light weight.Compared with the laser gyroscope, the fiber optic gyroscope has no lock-up problem, and does not need to precisely process the optical path in the quartz block, so the cost is relatively low. "

While this manufacturer introduces itself, it does not forget to cue its competitors.

Competitors are naturally not vegetarians, so they made inquiries immediately:
"I would like to ask how you solve the technical difficulties of fiber optic gyroscopes: sensitivity loss, drift caused by noise and fiber birefringence, and scale factor instability caused by polarization state changes."

The manufacturer who made the speech before replied unhurriedly:

"1. Sensitivity disappears:
As the rotation rate approaches zero, the sensitivity disappears.This is caused by the fact that the optical density in the detector is proportional to the cosine of the Sagnac phase shift.

2. Noise problem:

Noise in fiber optic gyroscopes is due to Rayleigh backscattering.In order to achieve low noise, light sources with small coherence length should be used.

3. Drift caused by fiber birefringence:

Drift occurs if two light waves propagating in opposite directions are on different optical paths.The reason for the difference in optical path length is that single-mode fibers have two orthogonal polarization states, and the light waves of these two polarization states generally propagate at different speeds”

Accompanying Xia Zhi were technicians from Zhixia University of Science and Technology, who could understand this part of the technical solution.

After their evaluation and analysis, objective suggestions are given for Xiazhi's reference.

Xia Zhi listened to the debate between the two parties, yawned, and couldn't help but stop:
"I just asked one question, is there any advantage of this fiber optic gyroscope compared with Aerofex's superfluid gyroscope?"

When I asked this question, the representative of the fiber optic gyroscope manufacturer had nothing to say.

Although they have done thorough research on fiber optic gyroscopes and improved the technology a lot, they still cannot compare with superfluid gyroscopes.

Otherwise, Aerofex would not dare to sell their aircraft so expensive.

Seeing that the fiber optic gyroscope manufacturer was deflated, another manufacturer arguing with it couldn't help laughing.

The representative of the fiber optic gyroscope manufacturer immediately said:

"Although our technology is not comparable, the accuracy of traditional inertial gyroscopes is even worse."

The snickering traditional manufacturers put on a straight face and repeatedly emphasized:

"Our advantage is that we are cheap. Your fiber optic gyroscope is so expensive, but there is no reason why it is so expensive. If the aircraft"

Xia Zhi shook his head, interrupted the quarrel between the two parties, looked at the others and asked:

"The next one will report on technology, hurry up."

Manufacturers came on stage one by one like a revolving door to introduce:

"As the world's leading provider of high-performance signal processing solutions, MEMS gyroscopes are represented. Analog Devices has been a leader in innovative MEMS products, providing comprehensive inertial sensing solutions, including award-winning iMEMS accelerometers and gyroscopes , iSensor smart sensors and inertial measurement units (IMU), etc. The MEMS produced by our company have the characteristics of small size, light weight, low cost, high reliability, easy mass production, and high intelligence."

"The biggest highlight of the upgrade of Phantom 2 vision+ is that it improves the single-axis gimbal of vision. The new three-way gyro gimbal can be said to be a qualitative leap. The new gimbal can provide anti-shake protection in 6 directions.

The new generation of Phantom3 quadcopter adds the visual positioning system Visual PosiTIoning System (VPS) from Inspire 1 to solve the disadvantages caused by the inability of flight stability assistance to work in places with poor GPS signals (such as indoors), especially For the more popular non-professional consumer groups that the Phantom series is aimed at, VPS makes indoor stable flight and low-altitude precise positioning hovering easier. "

"GAT magnetic levitation gyro total station is a kind of high-speed rotating magnetic levitation gyro sensitive to the earth's rotation angular momentum, and using the torque balance feedback method to accurately measure the angle between the gyro angular momentum axis and the meridian to determine the direction of true north. Orientation instrument."

After a morning of discussion and research, Xia Zhi found that the effect of the superfluid gyroscope produced by Aerofex is still irreplaceable.

However, in terms of price, other gyroscopes still have certain advantages.

Through testing and comparison, the accuracy of the gyroscope can be reduced within a controllable range, as long as it does not affect the passenger experience too much. In short, the cost of the aircraft must be reduced.

In the end, Xia Zhi selected the gyroscope technology from three of them and prepared to apply it to aircraft.

The research and development of aircraft hardware continues to advance, and Zhixia Technology’s high-energy batteries are also expanding their production lines to reduce costs.

From the original 2000 yuan for a standard battery to [-] yuan.

Basic engineers calculate that the cost per piece can be reduced to [-] yuan by the end of the year.

This reduces the cost of high-energy batteries to about the same as ordinary batteries on the market.

Other battery manufacturers are preparing to run away.

Zhixia Technology identified factories with transformation potential, acquired them and transformed them to produce its own high-energy batteries and put them into the energy supply systems of electric vehicles and electric aircraft.

At the end of September, Zhixia Technology held an aircraft cutting-edge technology exhibition in Jinling and invited many aircraft manufacturers on the market.

The new Arus aircraft designed by Lamborghini dominates the show, attracting the largest number of onlookers in the exhibition area.

If you want to talk about advanced design, you have to look at Lamborghini.

In addition to the eye-catching Lamborghini, the Italian brand, which has always been known for its restrained luxury, also showed their housekeeping skills and designed an executive-level aircraft.

It is equipped with a 600 yuan Zhixia Technology battery, which is 500 yuan more than a conventional aircraft.

The cabin is very large, with two seats, each seat is enough for a person to lie down.

The spectators applauded and applauded, those who didn't know it thought it was an alien spaceship.

(End of this chapter)