This gauge is specially designed to separately measure bending and tensile stresses by simply bonding the gauge to one side of a plate or beam. It works on the assumption that strain distribution in the section of a plate or beam which is subjected to both types of stress is linear.
| Main Test Materials | Metal | Materials Backing | Acrylic |
|---|---|---|---|
| Operating Temperature | -10 to +70°C | Materials Element | Cu-Ni alloy foil |
| Compensation range | --- | Strain limit | 0.15% (1500×10-6) |
| Bonding adhesive | CN,P-2 | Fatigue life at room temp. | 1×105 (±1000×10-6) |
| type | gauge length (mm) |
gauge width (mm) |
backing length (mm) |
backing width (mm) |
backing thickness (mm) |
resistance (Ω) |
thickness of applicable specimen (mm) |
|---|---|---|---|---|---|---|---|
| DD-1-15 | 3 | 2.9 | 15 | 7 | 1 | 350 | Approx.5 or less |
| DD-2-30 | 3 | 2.9 | 30 | 7 | 2 | 350 | Approx.5 to 10 |
| DD-3-45 | 3 | 2.9 | 45 | 7 | 3 | 350 | Approx.10 to 15 |