FAC Series Crack Detection Straingauge

Designed to measure the propagation speed of fatigue crack in a metal specimen

About the FAC Series Crack Detection Straingauge

FAC series crack detection gauge
These gauges are designed to measure the propagation speed of fatigue crack in a metal specimen. The gauges are bonded with an adhesive on the position where the crack is initiated or the crack initiation is expected. The grids of the gauges, which are aligned at interval of 0.1mm or 0.5mm, are disconnected one by one with the propagation of the crack. The gauges are used together with the crack gauge adaptor CGA-120B, and the disconnection of one grid is measured as the change of approx. 45 or 40×10-6 strain by a strainmeter.

Features FAC Series

  • Gauge resistance: approx. 1Ω
  • Measuring range: 4.5mm, 20mm
  • Backing size 28x5mm, 43x25mm

Specifications

Applicable specimen
Metal, concrete
Operational temperature(°C)
-30~+80°C
Temperature compensation range(°C)
-
Bonding adhesive
CN, RP-2
Backing
Special plastics
Element
Cu-Ni
Strain limit
-
Fatigue life at room temperature
-
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