What is the best passive electromagnetic pen for electromagnetic screen?

Recently, electromagnetic screen digital products that can realize the input of "original handwriting" have begun to receive widespread attention from consumers. As one of the core components of the electromagnetic screen technology, the electromagnetic pen plays a vital role in the process of inputting the "original handwriting". At present, there are two types of electromagnetic pens: active and passive. This is a choice made by consumers when selecting products. So, which is better or worse between active and passive electromagnetic pens? The following focuses on active and passive electromagnetic pens. To popularize knowledge for netizens.

What is the best passive electromagnetic pen for electromagnetic screen?

Active and passive have their own advantages

Active electromagnetic pens require batteries for power supply (such technology is also called active technology), passive electromagnetic pens do not need battery power (such technology is also called passive technology), they are the core of electromagnetic screen technology One of the components. The characteristic of the active electromagnetic pen is very obvious, that is, it needs a battery to power the pen. Through the built-in oscillation circuit, it can continuously emit electromagnetic waves. In use, the electromagnetic pen can continue to emit electromagnetic signals of a specific frequency regardless of whether it is near the electromagnetic screen. The intensity of the electromagnetic signals emitted by the electromagnetic pen will also be consistent, increasing the operating distance and making it more convenient to use.

However, if the electromagnetic signal emitted by the electromagnetic pen is strong, certain electromagnetic radiation will be generated, and long-term use will cause certain impact on our health. And because the electromagnetic pen needs to be equipped with a battery, it is inconvenient to use due to its size and weight, and the battery needs to be replaced regularly.

Relatively speaking, passive electromagnetic pens make up for the problems of active electromagnetic pens. As the name implies, it does not require a battery for power supply, and the energy required for passive electromagnetics is supplied by "isolating" from the electromagnetic screen. The internal result of the passive electromagnetic pen is mainly composed of a set of coils and a resonant circuit of the capacitor. The resonant circuit can be used for receiving and storing the electromagnetic energy transmitted by the electromagnetic screen and transmitting electromagnetic signals between the electromagnetic screen.

The characteristic of passive electromagnetic pen is that as long as the electromagnetic pen is not close to the electromagnetic screen, it will not receive electromagnetic energy. And the farther the electromagnetic pen is away from the electromagnetic screen, the less electromagnetic energy it can receive, so the electromagnetic signal it emits back to the electromagnetic screen is weaker. But this does not mean that the performance of the passive electromagnetic pen is poor. For the electromagnetic screen, it is fundamental to use the electromagnetic pen to perform smooth and true writing on the screen. Who will use the electromagnetic pen to simulate the use of a wireless mouse. At the same time, the electromagnetic signal is not directly emitted through the electromagnetic pen, which also greatly reduces the radiation, that is, energy saving and environmental protection. Without the battery, the design and weight of the passive electromagnetic pen are closer to our real weight of the ballpoint pen, and can have more flexibility.

Who chooses active and passive electromagnetic pens?

In view of the current electromagnetic screen market, both active electromagnetic pens and passive electromagnetic pens have correspondingly shaped products. However, the advantages of the active electromagnetic pen in terms of sensing distance and noise-free interference also bring it a big disadvantage of generating radiation. The advantages of passive passive electromagnetic pens in terms of convenience and pen weight are the key to whether they can give users a good hand feel, and they also have advantages in human-machine interfaces.

What is the best passive electromagnetic pen for electromagnetic screen?

Speaking of the advantages of the human-machine interface, passive electromagnetic pens have been widely used in some countries in Europe and Asia, such as e-commerce signature boards, POS machines, and e-readers, and have won quite a good reputation. In China, ViewSonic, a leading brand in the United States, has successfully introduced the electromagnetic screen using passive electromagnetic pens into the field of audio-visual education. The true and comfortable original handwriting input on the electromagnetic screen through passive electromagnetic pens has been created for teachers and students. A more real and healthy electronic classroom environment.

At present, as the most promising technology in the field of touch control in 2013, the electromagnetic screen will bring consumers a new era of touch application, and among them, passive electromagnetic pens obviously have certain advantages. It is understood that ViewSonic will also launch a passive electromagnetic pen with higher performance, so that people can enjoy the "original handwriting" handwriting input experience on the display screen smoothly and truly.

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