Micro-Measurements®, a Vishay Precision Group, Inc. (VPG) brand, has launched a series of products built using its Advanced Sensors strain gage technology. Addressing the growing demand for force and strain sensors needed to manufacture precision transducers and for stress analysis test and measurements, Micro-Measurements Advanced Sensors strain gages offer a tighter resistance tolerance, improved gage-to-gage repeatability, and better stability than standard strain gages while their advanced fabrication process helps to significantly reduce lead times. As the foundation of consistently reliable and precise transducers, Micro-Measurements Advanced Sensors strain gages are built on a new manufacturing process using state-of-the-art equipment and tooling. This results in tighter tolerance products with shorter manufacturing lead times as compared to conventional manufacturing techniques.
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. Advanced Sensors Technology strain gages are used for many applications throughout the world—in experimental stress analysis, and as the sensing elements in a wide variety of transducers for measuring physical variables other than strain, including weight, force, torque, pressure and more.
Leading the Advancement of Strain Gages Manufacturing Technology
Micro-Measurements Advanced Sensors Technology product portfolio includes linear, shear and circular gages, arranged as individual, half-bridge and full-bridge configurations, in ranges from 350 Ω to 20 kΩ, with added flexibility in mounting options. The technology improves grid-to-grid tolerances and matching over traditional strain gage manufacturing techniques, enabling better strain and force sensor performance.
In the case of full-bridge gage configurations, all intra-bridge connections are integrated directly into the pattern itself, eliminating the need for traditional intra-bridge soldering. The addition of gold-plated solder pads improves solder-joint reliability, while reducing the risks of solder pad oxidation prior to lead wire attachment. These processes further ensure the close matching of grid-to-grid thermal characteristics and bridge circuit thermal output cancellation specifications, both of which are essential to strain gage measurement accuracy.
Advanced Sensors and Stress Analysis
Advanced Sensors Technology are designed specifically for stress analysis applications. Exclusive features include: Linear Pattern Gage patterns designed for measuring strain in a single direction Single-grid and parallel dual-grid patterns Shear/Torque Rosettes Gage patterns designed for measuring shear strain and torque Individual and multiple grid patterns Rectangular Rosette Gage patterns designed for determining principle stresses and strains All patterns have three grids oriented at 0°, 45° and 90° angles Both stacked and planar constructions available Tee Rosette Gage patterns designed for measuring orthogonal strains All patterns have two grids oriented at 0° and 90° angles Both stacked and planar constructions available
Advanced Sensors and Transducer Applications
Transducer Class Strain Gages with Advanced Sensors Technology are designed specifically for transducer applications. Exclusive features include: Excellent Gage-to-Gage and Grid-to-Grid matching, to allow for more uniform gage performance in temperature . Tighter resistance tolerances - down to +/-0.1% even in high resistance gage patterns, enables simpler balance of the Wheatstone bridge circuitry. High resistance patterns - offered in Linear, Shear, T-Patterns and Full-Bridge configurations, with up to 20Khom resistance values. Gold plated solder tabs (on Karma foil patterns) and Epoxy Encapsulation for active grid protection offered as standard features. Targeted to support high volume OEM applications using innovative state-of-the-art technology.
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