What kind of feather is good?

Generally speaking, just look at the parameters of the racket and choose the one that suits you. You don't have to buy expensive ones. Good materials are definitely expensive, but for junior amateurs, buying a racket of 200 ~ 500 yuan is enough. Look at the professional side and you will know how to choose a racket.

Badminton racket generally consists of racket head, racket shaft, racket handle and the joint between racket frame and racket shaft. The length of the racket is no more than 68 cm, of which the length of the handle and the racket shaft is no more than 40 cm, the length of the racket frame is 28 cm and the width is 23 cm. With the development of science and technology, the development of racket is developing in the direction of lighter weight, harder racket frame and better flexibility of racket shaft.

Is the geometry of the racket head. Now there are generally two kinds: the traditional round-headed ISO racket. At present, the mainstream rackets all use a square racket head. Compared with the round head, the sweet area of the square head is about 25% larger than that of the round head.

When hitting the ball, the ball stays on the racket for only four to six thousandths of a second. During the swing before hitting the ball and when the racket hits the ball, the racket shaft has a process of bending and recovery, and the ball has flown out of the racket face before the racket returns to its original position. Under the condition that players have the same strength, the softer the bat is, the easier it is to bend in the swing process before hitting the ball, and the greater the bending amplitude is, thus driving the bat head to move at a greater angular velocity and generating greater hitting power. The harder the racket handle is, the less force is transmitted to the ball when hitting the ball, but the transmission of hitting vibration can be reduced. For the racquet frame, the greater the hardness of the racquet frame, the less likely it is to be deformed and twisted when touching the ball. The more power can be transmitted to the badminton, the less vibration will be transmitted.

Refers to the extent of the racket face distortion when hitting the ball. The smaller the torque of the racket, the better the ball control.

Each racket should be marked with a weight, generally u, 2U, 3U, 4U. Generally, the weight of all-carbon badminton rackets is 2U (90-94g) or 3U (85-89g) or 4U (80-84g), while the weight of aluminum frame badminton rackets is generally above U (95-99g), and a few all-carbon badminton rackets are as low as 80g. The heavier racket is suitable for players with better strength and more emphasis on attack, while the lighter racket is more suitable for players with more emphasis on defense.

The balance point of the racket is closer to the racket head, which is called "head weight"; If the balance point of the racket is closer to the handle, it is called "bald head". Generally speaking, the balance point is measured upward from the bottom of the racket in centimeters and inches. According to the principle of mechanics, the weight is proportional to the swing feeling, and the balance point is proportional to the square of the swing feeling. Because of the greater inertia of the racket head, the racket head is more powerful but the swing is slightly inflexible, which is more suitable for attack, and it is also the choice of those players with insufficient strength, because the racket head can slow down your hitting speed, but it can make it easier for you to hit the ball in the backcourt. Although the racket with a light head is more flexible, it hits the ball with less force, and the vibration transmitted by the racket will be greater. It is not suitable for players who hit the ball vigorously, but more suitable for defensive control players and speed-seeking players, because the continuous swing speed of this racket will be much faster. With the development of technology, many new rackets can make the same kind of finished rackets have the same balance point through precise control of production technology without using a balance, which is also the basic requirement of high-quality badminton rackets.

Parameters on the racket handle

The length of a standard badminton racket is 664 mm, while the length of an extended badminton racket is generally 674 mm. The most important part of the extension is the handle of the racket, and the frame of some models is slightly extended. The advantages of lengthening the badminton racket are that the hitting point is increased, the racket shaft flicker is increased, the ball can be killed with a larger landing angle, the ball speed is accelerated, the aggressiveness is increased, and the catching area is expanded. However, a longer badminton racket will be more likely to cause wrist and arm injuries than ordinary badminton rackets, and the flexibility of badminton rackets will also decrease, which is not conducive to dealing with intimate balls.

Rack frame part

Racket part

Box section is an earlier design, its biggest advantage is excellent ball control performance, but the air resistance of swing is greater. Airfoil is the most common design, which appeared later and is now used. Its advantages are small air resistance, fast swing speed and easy to hit a fast and fierce return ball. Because of its thin section, its ball control is slightly insufficient. The third semi-circular cross-section is the design of badminton racket's transition from aluminum frame to full carbon, and its cross-sectional shape is basically the same as that of aluminum frame racket, so the technology is relatively easy to manufacture. Generally speaking, the wing section is the mainstream now, which is more conducive to doubles and offensive counterattack, while the box section can better control the ball. With the development of material science and technology, in order to strive for faster hitting speed and better return control performance, badminton rackets with thin box section are more and more used in high-grade rackets.

Refers to the joint between the racket frame and the racket shaft, which is T-shaped and Y-shaped in appearance and technically inside and outside. The carbon badminton rackets used now are all integrated in appearance (no joints are visible), but in fact most of them adopt built-in joints, and only a few rackets adopt jointless technology. The disadvantage of jointless racket is poor torsion. The racket frame and the racket shaft are made separately and then articulated, which is beneficial to better control the quality, weight and balance point of the racket. The strength and torsion of the outer joint are good, but the weight is too large, and the stress is concentrated at the joint between the joint and the racket frame, which is the most fragile part of the aluminum frame racket. The built-in joint is made of high-strength carbon fiber and integrated with the racket frame from the inside of the racket shaft. It overcomes the shortcomings of external joint, but its technical requirements are higher.

Before the 1970s, badminton rackets were basically made of wood and steel pipes. In the 1970s, aluminum alloy was used, and now new materials such as carbon fiber, titanium alloy and high-strength carbon fiber are widely used. These new materials are lighter, stronger and more durable, absorbing more vibration and impact, and at the same time giving racket manufacturers more room to play in the design of racket hardness, ball feeling and hitting performance.