Combined Bending and Axial Force - A Beginner's Guide to Advanced Sensors Technology

In this iLearn video, Donielle shows how to use Advanced Sensors technology strain gages  to measure bending and axial forces. Greater sensitivity and resolution are possible when a full-bridge consisting of four active strain measuring grids is used instead of a single strain gage.

Advanced Sensors Technology applies tangible specification and manufacturing process improvements, along with industry-exclusive strain gage sensor design techniques, for direct customer benefit. The innovation behind Advanced Sensors Technology reflects many decades of Micro-Measurements R&D experience, gained across a global portfolio of thousands of successful applications, with other refinements achieved via ongoing customer feedback. 

Strain gage (strain gauge) technology, as a key internal component of finished sensor designs, is a long-recognized industry standard. The strain gages are used to detect a change in electrical resistance, occurring in response to an applied force. In addition to their reliability, strain gages are relatively compact and low cost. This has facilitated their widespread adoption into many of today’s force, load, position, pressure, tension, weight, and strain sensor designs. Such traditional designs have typically called for the bonding and soldering of anywhere from one to four individual strain gages within a single proprietary configuration. Among these, the full Wheatstone bridge, a four-strain-gage arrangement, has consistently offered the highest measurement accuracy, sensitivity and extraneous temperature cancellation.

Further design improvements over traditional strain gage types include smaller and tighter grid-resistance tolerances, improved gage-to-gage repeatability, and enhanced measurement stability. All enhancements are implemented via a fully optimized fabrication process, incorporating the very latest in tooling, methods, and equipment. As a result, the prototype design and manufacturing of anywhere from a single strain gage piece up to OEM volumes may be easily accommodated, with uniform high quality and competitive lead times.