The strongest pilot ever

Chapter 5 Vestibular Function Testing

5 vestibular function test

Early the next morning, when everyone went to the assessment site, they were dumbfounded again!

Everyone thought it was a swivel chair in the second round of assessment?

But this thing in front of me is a swivel chair?
The assessment of this link is called swivel chair, and both re-selection and fixed-selection are played, but the requirements for reaching the standard are different.

During the test, the subject sits on the swivel chair, fastens the seat belt, and puts his head in a slot. The doctor starts the swivel chair. As the swivel chair rotates, the head swings from side to side according to the prompt tone. When a "beep" is heard, the head turns Once, after finishing the work, according to the regulations, I had to get up and walk to the seat by myself, and sometimes I had to identify the direction, and I couldn't spit it out, and I couldn't fall off the chair.

But today's thing is obviously not the swivel chair used in the re-election. Of course, it can also be called a swivel chair, but the structure is more complicated, the assessment is more difficult, and the requirements for candidates are higher!
Fade Chen was a little dumbfounded.

But he wasn't the only one who was dumbfounded. 90.00% of the students who came to participate in the selection were stunned.

But soon, Fade Chen shrank his pupils.

He deduced a lot from this small change in detail.

Chen Fei knew that this link actually monitored the examinee's vestibular function.

The vestibular organ is located in the inner ear and consists of three pairs of mutually perpendicular semicircular canals (anterior, posterior, and horizontal semicircular canals) and two otolith organs (utriculus and sac). Acceleration and gravity stimulation.

The vestibular organ mainly plays the role of sensing the three-dimensional space positioning of the human body, maintaining body balance, and maintaining the stability of vision when the head moves.

Good vestibular function is of great significance to pilots and is a prerequisite for flying activities.

However, in the previous recruitment selection, even in the final selection stage, ordinary swivel chairs were used to monitor the vestibular function, but this time it was changed to a more complex, more comprehensive test, and more scientific standards. , another type of equipment that is more difficult, which shows that the superior wants to select a group of better pilots from this group of pilot students.

I have to admit that Chen Fei, who is not very talkative, made a very reasonable analysis, and it was also very accurate. He has already achieved a leaf to know the autumn.

With the great-leap-forward development of my country's Air Force weapons and equipment, the fourth-generation high-performance fighter jets have been widely equipped with aviation units.

At present, the more advanced fifth-generation fighter J-20 (also known as the fourth-generation fighter) has also been equipped with troops in small batches.

In addition, there are rumors that the current international community has reached a consensus that only more advanced fifth-generation aircraft can defeat the invaders. Therefore, the newly selected pilots of our army, as long as they have better conditions, will It is possible to fly the J-20 directly, instead of starting with the J-7 or J-8 as before.

These new high-performance fighters all have the characteristics of "high overload, high overload growth rate, high angular acceleration, and high cognitive load", which put forward higher requirements for pilots. Therefore, in the recruitment work, the The selection and appraisal of the pilot's vestibular orientation function must also be changed accordingly.

In the selection center, all the candidates were dumbfounded.

Only Zhang Heng had a bright smile, but his smile was the kind of tricky smile, which made people feel a little creepy.

"Don't be nervous. Everyone has seen this thing before. It's a swivel chair. Of course, it's a multifunctional swivel chair developed by Shanghi University of Technology. It consists of a rotating platform and a seat that can be tilted. Rotating Angular acceleration 10, angular velocity 180."

Seeing that everyone's faces were gray and pale, Zhang Heng smiled and said mysteriously: "I want to tell you a piece of news quietly, this multi-functional swivel chair was used for the selection of astronauts in the past, and you can't use it even if you want to use it." , this time, our Recruitment Bureau specially applied to the head of the superior, and after going through a lot of procedures, it was approved. Also, everyone knows Yang Li Wei, he also passed the selection of this multifunctional swivel chair before. Selected from a group of pilots, everyone will immediately enjoy the same treatment as our aerospace heroes, don't you all feel excited?"

After hearing Zhang Heng's words, other people didn't know, but Chen Fei just wanted to scold mmp in his heart!

Are the multifunctional swivel chairs for astronauts that their small bodies can withstand?

The vestibular function requirements of pilots are indeed higher than that of ordinary people, and much higher, but compared with astronauts, it really pales in comparison!
Using such a big killer for everyone, this is the rhythm of killing everyone!
At this time, most candidates, even those who didn't know much about this multifunctional swivel chair, could hear the horror of this test from bits and pieces, and their faces turned pale.

Seeing that Zhang Heng couldn't fool everyone, he stopped smiling and said seriously: "Let me introduce this selection to you.

Our monitoring, called vestibular-vegetative nerve response symptom detection, is to induce dizziness, dizziness, pale complexion, cold sweat, drowsiness, upper abdominal discomfort, nausea, nausea, vomiting and other autonomic nerves in the sensitive person under the stimulation of the swivel chair. reaction symptoms.

In a word, we use this thing to screen out those who are not suitable to be pilots, and select the best ones to focus on training.

During this monitoring, the symptoms of vestibular-vegetative nerve response were assessed and classified according to Graybiel’s numerical scoring method for motion sickness. Forget it, let’s not talk about it being so professional, and you don’t understand it. Let me just tell you what we will do. "

After a pause, Zhang Heng introduced and demonstrated: "This Coriolis acceleration sensitivity test, that is, swivel chair inspection, is done in this way. After the subject enters the swivel chair room, gastric and ECG electrodes are attached. On the left A blood pressure Holter strap is installed on the arm. The subject is blindfolded, sits on a swivel chair, and fastens the safety belt.

First do a left-right tilt test.

The swivel chair accelerates clockwise to an angular velocity of 10 with a rotational angular acceleration of 180 units, the seat is tilted from the neutral position to the right by 30 degrees, the seat is tilted from right to left by 30 degrees, and the left and right tilt angle is 60 degrees, and the movement time is 2 seconds; Stay in the left and right lateral positions for 1 second; make a total of 20 tilting movements.

After the tilting motion is completed, the swivel chair stops with a uniform deceleration of 10 units of rotational angular acceleration, and then begins to do the front-back tilt test.

The specific method of the front-back tilt test is as follows. The swivel chair is accelerated counterclockwise to an angular velocity of 10 at a rotational angular acceleration of 180 units, the seat is tilted backward 30 degrees from the neutral position, and then the seat is tilted forward 30 degrees. The movement time 2 seconds, dwell time 1 second.The front and rear angles are 60 degrees, and a total of 20 tilting movements are made.

After completing the tilting motion, the swivel chair decelerates and stops at a rotational angular acceleration of 10.

Record the electrogastrogram, electrocardiogram, blood pressure, ask and observe the motion sickness symptoms of the examinee during the examination. "

Speaking of this, Zhang Heng paused for a while to give everyone a little time to digest, and then he continued: "The grading standard for the irritation symptoms of the swivel chair is, level I, complete 40 tilting movements, and the motion sickness symptom assessment M I, M Ⅱ; Level Ⅱ, complete 40 tilting movements, motion sickness symptom assessment M Ⅱ, M Ⅲ, FS; level Ⅲ, not completing 40 tilting movements, motion sickness symptom assessment M Ⅱ, M Ⅲ, FS. In a word, must meet Only level II can become a pilot, of course, level I is definitely the best, so I hope that students will get a few more level I in the test in a while!"

Soon, the assessment began.

There are three multifunctional swivel chairs in the selection center, and three candidates are tested at the same time.

"Start!" Someone issued an order.

After hearing the instruction, the staff pressed the switch.

With a beep, the swivel chair began to turn.

The candidate sitting in the swivel chair on the far left was obviously not good enough, so he persisted for a while before he raised his hand to signal that he was not good enough.

Getting off the swivel chair, he staggered around twice, and retched with a groan.

Because he was unbiased, he happened to bump into Fade Chen in this direction, so Fade Chen hurriedly reached out to support him, and immediately took a trash can for him to vomit. Of course, he couldn't vomit anything, but he didn't Stop retching.

[You helped a weak classmate, and automatically picked up the vestibular function*1 that he dropped, your vestibular function has been strengthened, and your training experience has been enriched! 】

Hearing this voice, Fade Chen was overjoyed.

He patiently helped that classmate recover, and after waiting until he was really fine, he hurried back to the assessment site.

"I'm lucky today. I'm the second-to-last group to participate in the assessment. In other words, I have many opportunities to gain experience. I hope that there will be more masters in front of me, and I will lose more attributes!"

Fade Chen exhaled slowly.

Soon, the second team member came out.

This team member was better than the previous one, but he didn't meet the qualification standard. Before the test was completed, he couldn't keep going.

Chen Fei quickly supported the other party's hand: "Student, there is a seat here, come here to sit and have a rest!"

"Thank you!" said the classmate gratefully.

Fade Chen supported him with a smile, and helped him to the side to sit down.

[You helped a classmate who just finished the assessment, and automatically picked up the vestibular function*1 that he dropped. Your spatial balance ability has been strengthened, and your training experience has been enriched!You have changed from a novice with nothing to a rookie! 】

(End of this chapter)