Load sensor with semiconductive strain gauges

摘要

The invention provides a load sensor which is driven by a low electric power consumption, can measure at a high precision, and has a high reliability without being broken. The load sensor is structured such that a detection rod (2, 6, 8, 9, 14) for detecting a strain is provided in an inner portion of a hole (1a) formed near a center of a pin (1) via a shock relaxation material (5, 10) and a semiconductor strain sensor (3, 4, 7) is provided in the detection rod., in a load sensor detecting a load applied to the pin from a strain generated in an inner portion of the pin.