High-Accuracy Finger Force Distribution Measurement System with Precision Calibration Function

The dexterity of fingers is known to indicate a human health condition; thus, a finger force distribution measurement device measuring finger dexterity, essentially, the force, posture, and movement speed of each finger when holding an object in a vertical position, is essential. In this paper, a finger force distribution measurement system was developed with a load cell built into the thumb sensing part, and with a force sensor calibration function solving the sensor responsiveness issue, toward improving the measurement accuracy. Experiments were performed to verify the effectiveness of the device in measuring the finger force distribution with high accuracy.

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