Products
SF series Stress gauge
This gauge is sensitive not only in axial direction but also in transverse direction and the sensitivity of transverse direction is proportional to the Poisson's ratio of the specimen. Also the gauge is not sensitive to shearing strain. Accordingly the output of the gauge is proportional to the stress of the axial direction. The stress along the gauge axis can be measured easily.
|
Applicable specimen
|
Metal
|
Backing
|
Polyimide
|
|
Operational temperature(°C)
|
-20~+200°C
|
Element
|
Cu-Ni
|
|
Temperature compensation range(°C)
|
+10~+100°C
|
Strain limit
|
—
|
|
Bonding adhesive
|
CN, NP-50,
C-1 |
Fatigue life at room temperature
|
1×106
(±1500×10-6strain) |
Detailed material
AXIAL STRESS MEASUREMENT
|
Gauge pattern
|
Type
|
Gauge
length (mm) |
Gauge
width (mm) |
Backing
length (mm) |
Backing
width (mm) |
Resistance
(Ω) |
Poisson's ratio of specimen |
 |
SFA-285-11
|
4
|
3
|
9
|
6
|
120
|
0.285 |
|
SFA-305-17
|
4
|
3
|
9
|
6
|
120
|
0.305 | |
|
SFA-330-23
|
4
|
3
|
9
|
6
|
120
|
0.330 |
Other length of leadwire is also available on request.
