Products

QF series strain gauges for high temperature use

f_list These are foil strain gauges having a polyimide resin backing.  Strain measurement in high temperature is easily performed by bonding the strain gauge with room temperature curing adhesive NP-50.  Strain gauges for stress concentration measurement or torque measurement are also available in addition to general use gauges in this series.
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.
Applicable
specimen
Metal,
Ceramics
Backing
Polyimide
Operational
temperature(°C)
-20 ~ +200°C
Element
Cu-Ni alloy foil
Temperature
compensation range(°C)
+10 ~ +100°C
Strain limit
3%
(30000×10-6 strain)
Applicable adhesive
NP-50B, CN, C-1
Fatigue life
at room temperature
1×106
(±1500×10-6 strain)

Detailed materials

GENERAL USE GOBLET series GOBLET

Single-element (G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
QFLGB-02-11 0.2 1.4 3.5 2.5 120
QFLKB-1-11 1 0.7 4.5 1.4 120
QFLKB-2-11 2 0.9 5.5 1.5 120
QFLAB-03-11 0.3 1.4 3 2 120
QFLAB-1-11 1 1.1 4.7 2 120
QFLAB-2-11 2 1.5 6.5 3 120
QFLAB-3-11 3 1.7 7.7 3.5 120
QFLAB-5-11 5 1.5 10 3 120
QFLAB-6-11 6 2.2 11 4.3 120
QFLAB-30-11 30 2 35 5 120
QFLAB-1-350-11 1 1.6 4.5 3 350
QFLAB-2-350-11 2 1.9 6 3.5 350
QFLAB-3-350-11 3 1.6 7.2 3 350
QFLAB-6-350-11 6 2.6 10.8 4.5 350
QFLAB-6-1000-11 6 4.6 11 7 1000
Each package contains 10 strain gauges

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2-element 0°/90°(G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
(mm)
Resistance
(Ω)
QFCAB-1-11 1 0.7 φ4.5 120
QFCAB-3-11 3 1.7 φ11 120
Each package contains 10 strain gauges

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3-element 0°/45°/90° (G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
(mm)
Resistance
(Ω)
QFRAB-1-11 1 1.3 φ4.5 120
QFRAB-3-11 3 1.7 φ11 120
Each package contains 10 strain gauges

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GENERAL USE

Single-element (G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
QFLG-02-11
QFLG-02-11
0.2
1.4
3.5
2.5
120
QFLG-1-11
QFLA-1-11
1
1.3
5.0
2.5
120
QFLA-2-11
2
1.5
6.5
3
120
QFLA-3-11
3
1.7
8.8
3.5
120
QFLA-5-11
5
1.5
10.0
3
120
QFLA-6-11
6
2.2
12.5
4.3
120
QFLA-1-350-11
1
2.0
5.0
4.0
350
QFLA-2-350-11
2
1.9
6.1
3.5
350
QFLA-3-350-11
3
3.2
8.5
5.0
350
QFLA-6-350-11
6
2.6
12.5
4.5
350
QFLA-6-1000-11
6
4.6
13.5
7.0
1000
QFLK-1-11
QFLK-1-11
1
0.7
4.5
1.4
120
QFLK-2-11
2
0.9
5.5
1.5
120
QFBX-04-11-005LE
Polyimide
5cm pre-attached
QFBX-04-11-005LE
0.4
1.3
5.4
1
120
QFBY-06-11-005LE
Polyimide
5cm pre-attached
QFBY-06-11-005LE
0.6
0.8
5.3
1
120
QFLX-1-11-002LE
Polyimide
2cm pre-attached
QFLX-1-11-002LE
1
1.3
5
2
120
Each package contains 10 strain gauges

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2-element 0°/90°(G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
QFCA-1-11
QFCA-1-11
1
1.3
7.2
7.2
120
QFCA-3-11
3
1.7
11.0
11.0
120
QFCB-2-11
QFCB-2-11
2
1.5
8.2
8.0
120
Each package contains 10 strain gauges

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3-element 0°/45°/90° (G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
QFRA-1-11
QFRA-1-11
1
0.7
7.2
7.2
120
QFRA-3-11
3
1.7
11.0
11.0
120
Each package contains 10 strain gauges

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Single axis shearing strain measurement

Single axis 45° direction(G.F. 2.1 approx.)

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
FLT-1A
QFLT-05A-11-002LE
0.5
0.66
4.0
1.3
120
QFLT-1A-11-002LE
1.2
1.1
5.7
2.0
120
QFLT-1-350A-11-002LE
1.2
1.1
5.7
2.0
350
FLT-1B
QFLT-05B-11-002LE
0.5
0.66
4.0
1.3
120
QFLT-1B-11-002LE
1.2
1.1
5.7
2.0
120
QFLT-1-350B-11-002LE
1.2
1.1
5.7
2.0
350

Gauge leads -002LE:Polyimide 2cm pre-attached
Each package contains 10 strain gauges.

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TORQUE MEASUREMENT

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
90°2-element Rosette,
Plane type
(G.F. 2.1 approx.)
QFCT-2-11
QFCT-2-11
2
1.5
8.7
6.5
120
QFCT-2-350-11
2
1.7
7.6
5.3
350
Each package contains 10 strain gauges..

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STRESS CONCENTRATION MEASUREMENT

Gauge pattern
Type
Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)
Gauge
leads
Gauge
pitch
5-element single axis X-axis direction
(G.F.2.1 approx.)
QFXV-1-11-002LE
QFXV-1-11-002LE
1.0
1.3
5.0
12.0
120
Polyimide
2cm pre-attached
2mm
QFBXV-04-11-005LE
QFBXV-04-11-005LE
0.4
1.3
5.4
7.4
120
Polyimide
5cm pre-attached
1mm
5-element single axis Y-axis direction
(G.F.2.1 approx.)
QFYV-1-11-002LE
QFYV-1-11-002LE
1.0
1.4
5.0
12.0
120
Polyimide
2cm pre-attached
2mm
QFBYV-06-11-005LE
QFBYV-06-11-005LE
0.6
0.8
5.3
7.0
120
Polyimide
5cm pre-attached
1mm

Each package contains 10 strain gauges.

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Recommendable integral leadwire for QF series

For general use
Application
Product name
Lead wire code
Operating
temperature (°C )
Leadwire code exampled

High
temperature

3-wire twisted fluorinated resin (FEP) 6FA_LT-F
(No Tetra-Etch required for surface preparation)
3-wire twisted fluorinated resin (FEP) 6FB_LT-F

6FA_LT-F

-269~ +200 QFLA-1-11-6FA3LT-F

6FB_LT-F

QFLA-1-11-6FB3LT-F
The length of lead wire in meter is filled in _.
Only the leadwires using lead-free solder are available for GOBLET strain gauges with CE marking.  Note that “-F” is appended to the type name of the leadwire using lead-free solder.

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