| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized strain sensor having a small size in the width direction of an insulating substrate. SOLUTION: This sensor is equipped with: the insulating substrate comprising a rectangular elastic material provided with a pair of fixing holes on both end sides; four strain resistance elements provided on the upper surface of the insulating substrate and on the inside of the pair of fixing holes and constituting a bridge circuit; a processing circuit for processing an output signal from the four strain resistance elements; a GND electrode connected electrically to the strain resistance elements; a power supply communication electrode connected electrically to the processing circuit; a protection case provided so as to protect the processing circuit, the GND electrode and the power supply communication electrode; and a pressing member fixed to the insulating substrate, for displacing the insulating substrate in the vertical direction. The sensor has a constitution wherein the processing circuit 15, the GND electrode 17, the power supply communication electrode 16 and the protection case 18 are positioned and provided approximately on the center of the insulating substrate 11 and on the upper side thereof, and the pressing member 22 is positioned and provided approximately on the center of the insulating substrate 11 and on the under side thereof. COPYRIGHT: (C)2006,JPO&NCIPI
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