Foil Type Strain Gauge
LF Series Low Elastic Strain Gauge
These strain gauges are suited for the measurement on materials such as plastics, which have low elastic modulus compared to metals. The specially designed grid pattern reduces the stiffening effect of strain gauge on the specimen. This series is available with self-temperature-compensation for materials having coefficient of thermal expansion of 50 or 70 ×10-6 strain/℃.
New series of strain gauges named GOBLET are added to this series. They are compliant with RoHS 2 Directive 2011/65/EU and supplied with CE marking. Even though lead-free solder is used in the GOBLET gauges, they show better performance than conventional strain gauges owing to the adoption of unique gauge pattern. Extension leadwires with CE marking are also available.
| Gauge pattern | Type | Gauge length (mm) |
Gauge width (mm) |
Backing length (mm) |
Backing width (mm) |
Resistance value (Ω) |
|---|---|---|---|---|---|---|
Single-element (G.F. 2.1 approx.)  |
GFLA-3-50 GFLA-3-70 |
3 | 2.3 | 9.5 | 4 | 120 |
| GFLA-6-50 GFLA-6-70 |
6 | 2.5 | 14 | 5 | 120 | |
| GFLA-3-350-50 GFLA-3-350-70 |
3 | 2.9 | 10 | 5 | 350 | |
| GFLA-6-350-50 GFLA-6-350-70 |
6 | 2.7 | 15 | 5 | 350 | |
90°2-element Rosette Plane type (G.F. 2.1 approx.)  |
GFCA-3-50 GFCA-3-70 |
3 | 1.4 | 10.5 | 10.5 | 120 |
| GFCA-3-350-50 GFCA-3-350-70 |
3 | 2.9 | 15 | 15 | 350 | |
45°/90°3-element Rosette Plane type (G.F. 2.1 approx.)  |
GFRA-3-50 GFRA-3-70 |
3 | 1.4 | 10.5 | 10.5 | 120 |
| GFRA-3-350-50 GFRA-3-350-70 |
3 | 2.9 | 15 | 15 | 350 |
50:Epoxy resin
70:Acrylic resin, ABS resin
Each package contains 10 gauges.
| Gauge pattern | Type | Gauge length (mm) |
Gauge width (mm) |
Backing length (mm) |
Backing width (mm) |
Resistance value (Ω) |
|---|---|---|---|---|---|---|
Single-element (G.F. 2.1 approx.) |
GFLA-3-50 GFLA-3-70 |
3 | 2.3 | 9.5 | 4 | 120 |
| GFLA-6-50 GFLA-6-70 |
6 | 2.5 | 14 | 5 | 120 | |
| GFLA-3-350-50 GFLA-3-350-70 |
3 | 2.9 | 10 | 5 | 350 | |
| GFLA-6-350-50 GFLA-6-350-70 |
6 | 2.7 | 15 | 5 | 350 | |
90°2-element Rosette Plane type (G.F. 2.1 approx.) |
GFCA-3-50 GFCA-3-70 |
3 | 1.4 | 10.5 | 10.5 | 120 |
| GFCA-3-350-50 GFCA-3-350-70 |
3 | 2.9 | 15 | 15 | 350 | |
45°/90°3-element Rosette Plane type (G.F. 2.1 approx.) |
GFRA-3-50 GFRA-3-70 |
3 | 1.4 | 10.5 | 10.5 | 120 |
| GFRA-3-350-50 GFRA-3-350-70 |
3 | 2.9 | 15 | 15 | 350 |
50:Epoxy resin
70:Acrylic resin, ABS resin
Each package contains 10 gauges.
| Application | Product name | Lead wire code | Operational temperature range | Leadwire code exampled |
|---|---|---|---|---|
| General measurement (no temperature change) | 2-wire parallel vinyl wire | LJC/LJC-F | -20 to +80 ℃ | LFLA-10-11-3LJC |
| General measurement | 3-wire parallel vinyl wire | LJCT/LJCT-F | -20 to +80 ℃ | LFLA-10-11-3LJCT |
* Only lead wires using lead-free solder are available for GOBLET series strain gauges with the CE marking.