Invar Master Bar for Strain Gauge Set (Metric)
Invar Master Bar is required for verifying the calibration of the Strain Gauge. Models are available for use with the U.S. or Metric units of measure Strain Gauge Sets. The bar is made of Invar nickel-iron alloy with a very low coefficient of thermal expansion. Threaded stainless steel inserts with 2, 4, 6, 8, and 10in or 5, 10, 15, 20, and 25cm spacing are used to verify gauge spacing.
Features:
- Invar nickel-iron alloy has exceptional thermal stability
- Stainless steel inserts to verify gauge spacing
Strain Gauge Set Test Methods
This Strain Gauge Set meets the following test methods:
- ASTM C341
- ASTM C426
Accessories to Strain Gauge Set Test:
- Invar Master Bar checks space settings of gauge and is available in Imperial or Metric. It is required to verify calibration of the Strain Gauge
- Strain Gauge Punch Bar provides accuracy to locate the brass inserts in the specimen and is available in Imperial or Metric. It is required for use with the Strain Gauge Set
- Strain Gauge Contact Seat is stainless steel threaded into Brass Inserts for measurements
- Strain Gauge Brass Inserts mount in test specimen and hold threaded Contact Seats
- Strain Gauge Contact Point is hardened steel, mounts in Strain Gauge frame, and is positioned in Contact Seats when measuring strain