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. Optional (-F) lead-free solder specifications are also available.

One-side Strain Gauge
Applicable specimen Metal
Operational temperature(℃) -10 to +70℃
Temperature compensation range(℃) -
Applicable adhesive CN, P-2
Backing Acrylic
Element Cu-Ni
Strain limit 0.15% (1500 x 10-6 strain)
Fatigue life at room temperature 1 x 105 (±1000 x 10-6 strain)
  • ONE-SIDE STRAIN GAUGE

    dd

    Type Gauge
    length
    (mm)
    Gauge
    width
    (mm)
    Backing
    length a
    (mm)
    Backing
    width b
    (mm)
    Backing
    thickness
    c (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

     

    * Orders accepted for 5 units at a time