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Axial Strain Line Art
KARMA STRAIN GAGES
TEE ROSETTE GAGES
U K-Series, Transducers Quality
U Good Linearity Over Wide Temperature Range
-75 to 200°C (-100 to 392°F)
U Good Fatigue Life
U Custom Gages Available—Fast Delivery
OMEGA® offers K-Series Tee Rosettes for Axial strain transducer designs.
Three different Tee Rosette styles available:
SGK-B3A-K350U -***** has 2 separate strain gages with
perpendicular grids on a single carrier.
SGK-BH3A-K350U-***** is a half-bridge design, with
2 strain gages, perpendicular grids with a common
lead/pad on a single carrier.
SGK-B5A-K350W-***** is a half-bridge Tee Rosette design,
often used for column load cell design where high accuracy is a
requirement. The geometry for this strain gage is shown with the
tabs along the top, and the center strain gage is vertical, and used
for the principal stress direction in the column. The Perpendicular
grid is split, half on each side. This may also be known as transverse
grid. The transverse grid tends to correct for bending strain,
or off-axis loading in the column.
To Order
GAGE
PATTERN
Shown
actual size
Leads not shown
7.5 mm
V
V
V
MODEL NO.
Pkg of 5
SGK-B3A-K350U-PC11-E
SGK-B3A-K350U-PC23-E
V
NOM.
RESISTANCE
(Ω)
350
3.2 4.0 7.5 10.8
(0.126) (0.157) (0.3) (0.43)
350 17.5
For Equations
Visit us online
DIMENSIONS mm (inch)
GRID CARRIER
A B C D
90° TEE rosette axial strain,
separate gages 350 Ω
V
IN
REGULATED
DC
PC11 or PC23
****
b
+ Exc
- Exc
†
3
h
- Sig
MAX V*
(Vrms)
12.5
4
1
Axial Strain
1
+
–
2
V
OUT
TERMINATION
Solder Pads
Solder Pads
F
A
2
4
–
+
3
+ Sig
TEMP
COMP
ST
AL
7.5 mm
V
V
V
9.8 mm
V
V
V
V
Maximum permitted bridge energizing voltage (Vrms).
*
Note: For strain gage accessories visit us online.
Ordering Example: SGK-BH3A-K350U-PC11-E, package of 5,
Tee rosette for axial strain, half-bridge with a common solder pad,
nominal resistance 350 Ω.
SGK-BH3A-K350U-PC11-E
SGK-BH3A-K350U-PC23-E
V
SGK-B5A-K350W-PC11-E
V
V
SGK-B5A-K350W-PC23-E
350
350 17.5
350
350 15
BONDABLE TERMINAL PADS
When installing strain gages with ribbon leads or
solder pads, use Bondable Terminal Pads (BTP)
between the strain gage and the wires to your
instrumentation.
The Bondable Terminal Pads provide a large easy
to use soldering area and provide strain relief between
the strain gage and the heavy instrument wires.
Using Bondable Terminal Pads is simple. Use the same
adhesive and bonding procedure on the Bondable
Terminal Pads as you use on the strain gage.
OMEGA offers BTPs in several sizes and wiring
configurations to fit most all strain gage applications.
3.2 4.0 7.5 10.8
(0.126) (0.157) (0.3) (0.43)
90° TEE rosette half-bridge,
common lead/pad 350 Ω
5.0 2.3 9.8 9.0
(0.197) (0.091) (0.39) (0.35)
Used for high accuracy
column load cells 350 Ω
DISCOUNT SCHEDULE
1 to 10 pkgs .................. Net
11 to 24 pkgs ..................5%
25 to 49 pkgs .................10%
50 and up and OEM ..Consult Factory
Visit omega.com for ordering information.
BTP
BTPB
Terminal pad patterns,
BTPD
BTPC
BTPE
E-53
12.5
11
Solder Pads
Solder Pads
Solder Pads
Solder Pads
NOTE
ST = Steel
AL = Aluminum
† Dimensions Key:
ST
AL
ST
AL
C
A
BD
GRID
A: Active gage length
B: Active gage width
CARRIER
C: Matrix length
D: Matrix width
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