Patent ID: 8590390
Filing Date: 2013-11-26
Classification: G01L,G01M

Abstract:
1. A method of fabricating a strain sensing apparatus, comprising: receiving a substrate having an upper surface and a lower surface; fabricating a plurality of strain sensing elements upon the substrate and proximate to the upper surface; etching material from the upper surface of the substrate so as to fabricate a sensor support structure configured to support the plurality of strain sensing elements thereon; and removing material from the lower surface of the substrate so as to further expose the sensor support structure; wherein the plurality of strain sensing elements further includes a first set of piezoresistive strain sensors and a second set of piezoresistive strain sensors, the method further comprising: connecting two of the first set of piezoresistive strain sensors in electrical series; connecting the two of the first set of piezoresistive strain sensors in electrical parallel so as to facilitate the detection of a strain; and electrically connecting the second set of piezoresistive strain sensors to the twos of the first set of piezoresistive strain sensors that are connected in electrical parallel, so as to facilitate a temperature compensation of the first set of piezoresistive strain sensors.