In terms of display effect, the advantages of OLED screens are too attractive compared to LCD screens. The OLED screen has the function of individually controlling the pixels. In daily use, not every scene needs to light up all the pixels of the screen. Therefore, it can display a more pure black effect, and can also achieve 1000000:1 in terms of contrast ratio, so that the bright places are bright enough, and the dark places are very dark, bringing a more realistic display effect. 0.96Inch Oled,0.96Inch Oled Display,OLED screens,Lcd Panel Oled Display ESEN HK LIMITED , https://www.esenlcd.com
In addition, compared with LCD screens, OLED screens have removed components such as backlights and polarizers. In terms of sliding and touch, OLED screens can provide a touch response speed of 0.2ms, and dynamic content such as content sliding and games. In the scene, the OLED screen can provide a clearer look and feel.
It is precisely because of this that more and more notebook manufacturers are beginning to deploy and promote OLED screens on their own products to further improve the display effect of their own products. Among the notebook computer manufacturers, ASUS is the most active. The slogan of #ASUSscreen# has been played before, and with the help of high-quality OLED screens, it brings a more amazing display effect than LCD. The recently launched new product, the ASUS Unparalleled series, has brought the 120Hz high-brush OLED screen to the 5K price range, reducing the dimension of products at the same price.
What is the difference between armature and rotor?
**Armature**
The armature is a crucial part in the conversion of mechanical energy into electrical energy, or vice versa. In a generator, it is the component that produces an electromotive force (EMF). For example, in a DC generator, the armature is the rotor, while in an AC alternator, it is the stator. In electric motors, the armature is the part that experiences electromagnetic force, such as the rotor in a DC motor.
The armature typically consists of a coil that moves within a magnetic field. In a generator, this movement induces an EMF, allowing electricity to be generated. In a motor, the current-carrying coil interacts with the magnetic field, creating a force that causes rotation.
There are two main types of armature windings: DC and AC. These are used in DC and AC machines respectively. The armature includes both the armature core and the winding. The core serves as a magnetic path and supports the winding, which is embedded in slots. The winding is responsible for generating voltage and electromagnetic torque during energy conversion.
In DC motors, even though the armature winding carries alternating current, the commutator converts it to direct current at the output. This principle is similar in AC motors, though the operation differs slightly.
**Rotor**
A rotor is a rotating component supported by bearings. It can be found in various machines, such as turbines, motors, and pumps. A rigidly attached object, like a CD, can also act as a rotor when it rotates. According to ISO standards, any rotating body supported by bearings is classified as a rotor.
Rotors are essential parts in power and mechanical systems. They rotate at high speeds and can experience deformation, leading to resonance. The speed at which this occurs is known as the critical speed. Rotors are categorized as rigid or flexible based on their operating speed relative to the first critical speed.
Balancing is important for rotors to minimize vibration. Static balancing is used for disc-shaped rotors, while dynamic balancing is applied to rigid and flexible rotors using different methods. Common rotor issues include bearing wear, brush damage, and winding failures.
**Difference Between Armature and Rotor**
In AC synchronous motors, the armature is the stator, while in DC motors, it is the rotor. Induction motors do not have an armature; they only have a stator and a rotor.
The armature and magnetic pole are key components in DC and synchronous motors. The magnetic pole generates the magnetic field, while the armature induces EMF, carries current, and produces electromagnetic torque. Both consist of a core and windings.
In AC synchronous motors and DC motors, the armature current is independent of the magnetic pole current. The armature winding induces EMF and current, while the magnetic pole (rotor) creates the magnetic field.
In induction motors, both stator and rotor windings induce EMF and carry current. However, the rotor current follows the stator’s, without synchronization, hence the term "asynchronous." Since there is no dedicated winding for the magnetic field, induction motors don’t distinguish between armature and magnetic pole.
Understanding these differences helps in selecting the right components for specific applications and troubleshooting electrical machinery effectively.