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In human biology, handedness is a better, faster, or more precise performance or individual preference for use of a hand, known as the dominant hand; the incapable, less capable or less preferred hand is called the non-dominant hand. Right-handedness is the most common form, and it is estimated that around 90% of the world’s population is right-handed.
A writing friction detection device for improving accuracy
This utility model discloses a writing friction force detection device with improved accuracy, belonging to the field of detection devices. It includes a detection platform with a detection mechanism on its top surface. The dynamic angle adjustment mechanism uses a third cylinder to drive a rack and pinion gear, which in turn drives a concave frame to rotate around a rotating rod, allowing for arbitrary angle adjustment of the writing platform within the range of 0-90°. This precisely adapts to the personalized writing needs of left-handed users tilting to the left and right-handed users tilting to the right, while also accommodating the 25°-35° tilt angle required for English writing and the 10°-25° tilt angle commonly used for Chinese character writing. This precise angle adjustment capability ensures that the pen tip and paper make contact in a realistic writing state, avoiding uneven force distribution caused by angle deviations. This ensures that the friction and pressure distribution matches actual writing conditions, thereby eliminating detection misjudgments caused by angle mismatches and significantly improving the accuracy of the detection data.
Owner:SHANTOU ZHENTAI IND CO LTD