TORQUE SENSOR AND MANUFACTURING METHOD THEREFOR

摘要

A torque sensor includes: a base portion (20, 70, 100, 110, 120, 130, 140, 150) fixed to a metal shaft (10) having a rod shape as a measurement object of strain; a strain detection element (40) of an surface acoustic wave type which is arranged in the base portion (20, 70, 100, 110, 120, 130, 140, 150), and detects the strain of the metal shaft (10) through the base portion (20, 70, 100, 110, 120, 130, 140, 150); and a fixing portion (30) that is arranged between the base portion (20, 70, 100, 110, 120, 130, 140, 150) and the strain detection element (40), and fixes the strain detection element (40) to the base portion (20, 70, 100, 110, 120, 130, 140, 150).