resistance strain gauge

Kingmach designs its resistance strain gauges to survive field conditions where lab precision is not optional. That shows up in the choice of sensitive grids: Constantan foil for general-purpose static measurements, Karma alloy when long-term stability and self-temperature-compensation matter, and annealed Constantan for dynamic applications. Backings range from flexible polyimide for curved surfaces to glass-fiber-reinforced phenolic for rugged embedment in concrete. Gauge lengths available from as short as 1 mm for point measurements to 100 mm for heterogeneous materials like mass concrete. This range makes it simpler to find a gauge that matches the aggregate size, the bond line thickness, and the expected strain gradient—without overspending on features you don’t need. For waterproofing, many gauges come with pre-attached leadwires and encapsulation options rated for immersion or high humidity. Kingmach also stocks a full set of accessories: bonding adhesives, protective coatings, terminal pads, and dummy gauges for temperature compensation—everything that turns a bare gauge into a working instrumentation chain. If a project calls for a non-standard resistance (e.g., 350 Ω instead of 120 Ω) or a special pattern for a transducer, Kingmach’s engineering team does custom layouts in small batches, which is uncommon at the mid-range price point. Their network of global distributors means support is available in local time zones, and each gauge ships with a calibration sheet traceable to national standards. That combination of choice, customization, and practical support has put Kingmach gauges on bridges, tunnels, mine shafts, and deep foundations across dozens of countries.