Mouse performance

What are the parameters of the mouse in the end performance, the following Xiaobian give everyone about science. The parameter performance of the mouse is basically divided into the following three blocks:

Resolution (dpi)

The word “resolution” may be very familiar to everyone, because whether the monitor, scanner, or digital camera has the “resolution” parameter, what is the resolution in the mouse? The definition of the mouse dpi is the distance in pixels that the cursor moves on the screen for each inch of movement of the mouse. The unit is dpi. Most mice on the market are 400dpi or 800dpi. If the 400dpi mouse moves 1 inch, the mouse pointer moves 400 pixels across the display's desktop. So the higher the dpi value, the faster the mouse moves and the more accurate the positioning. Common cs and other first-person games require a high dpi mouse to operate, otherwise the game will be very bad. For some products with lower dpi, some mouse drive or control software provides two speeds and accelerations to adjust the speed of the mouse movement and the length of the travel stroke. However, the disadvantage is that the pointer moves two pixels at a time and the operation is not precise enough.

Scan Frequency Scan frequency is an important parameter to determine the mouse, it is the number of scans per unit time, the unit is "seconds / second". This parameter is relatively well understood and is a simple quantitative problem. The more scans per second, the more images that can be compared, and the higher the relative positioning accuracy. At present, Microsoft's ie3 and ie4 have reached the industry's highest scan rate of 6000 times per second, so it has a good performance in positioning performance. When it comes to scanning frequencies, people always think of high-end mice first. In fact, the scanning frequency is equally important for low- and mid-range mice. For example, Agilent's optical positioning chip, s2051 scan frequency of 2500 times / second, h2000 only 1500 times / second, positioning performance between them is relatively large. There are also some optical positioning chips in South Korea and Taiwan.

Ergonomics Ergonomics refers to the design of a mouse that is more comfortable to hold and easy to manipulate, based on factors such as the person's hand type and force habits. However, the current use of the term ergonomics is somewhat overused, mainly because some domestic manufacturers give full play to the idea of ​​"getting an idea." While plagiarizing the excellent designs of foreign manufacturers, even the publicity has moved around. Due to the ambiguous concept of ergonomic design, there are no rigid rules that consumers can hardly tell. In fact, there are ergonomics in the ordinary modeling mouse, to give a simple example, is also an ordinary two-button + wheel mouse, the Microsoft Extreme Shark and Logitech mx300 feel very comfortable, and some miscellaneous brand mouse is a lot worse. Such a large gap, in addition to material molds and other reasons, is in ergonomic design.