UBF series Composite strain gauge 
These are strain gauges developed for measurement on composite materials, and are designed with a proprietary special grid pattern to reduce the stiffening effect of the strain gauges. Owing to the development of gauge backing with better compliance, the number of repetitions in thermal cycling tests and creep characteristics have been significantly improved compared to conventional strain gauges (Tokyo Measuring Instruments Laboratory comparison). Optional (-F) lead-free solder specifications are also available.
| Applicable specimen | Fiber Reinforced Plastics(FRP) |
|---|---|
| Operational temperature | Static:-30 to +120 Ω Dynamic:-30 to +150 Ω |
| Temperature compensation range | - |
| Temperature compensation range | EB-2, CN, NP-50B |
| Backing | Polyimide-Amide |
| Element | Cu-Ni |
| Strain limit | 3% (30000 x 10-6 strain) |
| Fatigue life at room temperature | 1×106 (±1500 x 10-6 strain) |
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Single-element
Gauge pattern Type Gauge
length
(mm)Gauge
width
(mm)Backing
length
(mm)Backing
width
(mm)Resistance
(Ω)
UBFLA-03 0.3 1.9 3.4 2.5 120 
UBFLA-1 1 1.3 4.5 2 120 * Optional -F availability (lead-free solder)
Each package contains 10 gauges. -
Lead wires recommended for UBF series strain gauges (made-to-order)
Purpose Lead wires Lead wire symbol Operating temperature range
(℃ )Gauge type exampled General measurement (no temperature change) 2-wire parallel vinyl wire LJB-F －20 to +80 UBFLA-1-3LJB 2-strand twisted vinyl wire LH UBFLA-1-3LH General measurement 3-wire parallel vinyl wire LJBT/LJBT-F －20 to +80 UBFLA-1-3LJBT 3-strand twisted vinyl wire (3-wire system) LHT UBFLA-1-3LHT Medium/high temperature 3-wire parallel special vinyl wire LXT/LXT-F －20 to +150 UBFLA-1-3LXT 3-strand twisted FEP single-core wire 6FB♦LT －269 to +200 UBFLA-1-6FB3LT * "♦" indicates lead wire length
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