DD Series for One Side Strain Measurement

Measure the bending and tensile strains separately by simply bonding the gauges on one side of a plate

About the DD Series for One Side Strain Measurement

DD series one-side strain gauge
These gauges are intended for measuring the bending and tensile strains separately by simply bonding the gauges on one side of a plate or beam. It works on the assumption that the strain distribution in the section of the specimen is linear along the height of the section when the section is subjected to both tensile and bending stress. The gauges are effectively used for the measurement of a box construction in structures such as bridges or pressure vessels, where the reverse side of the measurement object is not accessible for strain gauge installation.

Features DD Series

  • Type: Single element, for measuring bending and tensile strains separately
  • Gauge resistance: 350Ω
  • Gauge length: 3mm

Specifications

Applicable specimen
Metal
Operational temperature(°C)
-10~+70°C
Temperature compensation range(°C)
-
Bonding adhesive
CN, P-2
Backing
Acrylic
Element
Cu-Ni
Strain limit
0.15% (1500×10⁻⁶ strain)
Fatigue life at room temperature
1×10⁵ (±1000×10⁻⁶strain)
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