The precision strain gauges equal, and in many cases, better the performance of the competitive suppliers. The range of gauges covers patterns for measurement of bend
ing, shear, torque, tension/compression in a variety of sizes, foils and options.
Strain Gauges Types
J-series Strain Gauge
J gauge are a series of Constantan alloy patterns on a highly flexible modified Polymide backing. This strain gauge series is most suitable for general-purpose sensor production and experimental stress analysis. It is available with a fully encapsulated grid (Option A) and Silver-plated copper leads (Option B).
K-series Strain Gauge
K gauges are a series of selected-foil Constantan patterns on a highly flexible modified Polymide for very low creep variation in temperature. This strain gauge series is especially suited for precision transducer production. It is available with fully encapsulated grid (Option A) and silver-plated copper (Option B).
Y-series Strain Gauge
Y gauges are a series of Evanohm alloy patterns on a highly flexible modified Polymide backing. This strain gauge series is suitable where higher resistance and long fatigue life are important for transducer manufacturing. Since Evanohm is a hard alloy ,sharp bending during installation may lead to early fatigue failure. Option D, encapsulated grid with pre-tinned tabs is recommended for ease of lead attachment. Use appropriate solder to attach nickel-clad copper leads to the gauge solder-tabs.
Strain Gauge Options
Option A (with encapsulation)
J Series gauges
-A flexible Polymide cover is laminated over the entire grid to fully encapsulate it against moisture and other elements.
K and Y Series gauges
-A proprietary coating is applied to fully encapsulate the grid against moisture and other corrosive elements while maintaining superior creep performance over temperature.
Option B (with leads)
J and K Series gauges
-Silver-plated copper leads, 1.25 inch in length are soldered to the gauge tabs with 425°F solder.
Y Series gauges
Check with factory. Specify maximum operating temperature for application.
Option C (encapsulated with leads)
Option A and B are combined appropriately for each gauge series.
The encapsulation completely covers the grid as well as the solder joint and the whole solder tab to provide protection for the entire strain gauge.
Option D (with pre-tinned solder tabs)
Encapsulated grid with pre-tinned is recommended for ease of lead attachment. Use 425° solder to attach leads to the gauge solder-tabs.
