| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspection method of a piezoelectric sensor, which is capable of reducing the inspection cost of a piezoelectric sensor in comparison with prior arts. ! SOLUTION: A piezoelectric sensor 100 includes a spacer 14A, a spacer 14B, a detection plate 15, a sensor unit 16, a plunger 17, a cushion 21, and a component mounting part 38. The piezoelectric sensor 100 is required to be inspected to determine whether it outputs an appropriate voltage when being pressed or not, after being manufactured and before being joined to an operation plate 12 and mounted on a display device 10. Therefore, both end parts of the detection plate 15 are fixed to a fixing rod 126 provided on a measurement base 125 (S11), and the plunger 17 is pressed with a front end part 121 of a piezo-actuator 120 to measure a voltage generated between a first detection electrode 34 and a second detection electrode 35 (S12). ! COPYRIGHT: (C)2015,JPO&INPIT |
