Omega Products SGD-1.5-120-LY11 User Manual

PRECISION STRAIN GAGE

3.4 mm

16-CONDUCTORS

LIMB WIDTH 0.035 mm

GAP WIDTH 0.026 mm

SGD-1.5/120-LY11

SGD-2/350-LY11

5.8 mm

36-CONDUCTORS

LIMB 0.036 mm

GAP 0.027 mm

AGL 2.0 mm

SGD-2D/350-LY11

6.6 mm

54-CONDUCTORS

LIMB 0.046 mm

GAP 0.035 mm

AGL 1.88 mm

SGD-3/350-LY11

4.0 mm

26-CONDUCTORS

LIMB 0.040 mm

GAP 0.040 mm

AGL 3.2 mm

PRECISION LINEAR PATTERN FOR STATIC AND
DYNAMIC APPLICATIONS

SGD Series

U Very Flexible, Mechanically Strong
U Small Bending Radius
U Broad Temperature Range
U Ribbon Leads or Solder Pads,
U Clear Alignment Marks
U Affix with Cold or Hot Curing Adhesives

OMEGA® strain gages are available in a variety of models
to cover most strain measurement applications. Their
rugged construction and flexibility make them suitable for
highly accurate static and dynamic measurement. The
measuring grid is formed by etching constantan foil, which
is then completely sealed in a carrier medium composed of
polyimide film. The linear pattern strain gages are used to
measure strain in a single direction. They are often used for
experimental stress analysis applications. The strain gage
pattern is shown on the left side of the table. Notice the
“arrow” which indicates the principal stress direction.

To Order

NOM.
RESIS­ TANCE GRID CARRIER MAX V* TEMP TERM
MODEL NO. (Ω)

Shown

actual size

4.70 mm

SGD-1.5/120-LY13 120 3.5 Ribbon Leads AL

V

SGD-1.5/120-LY41 120 2.5 Solder Pads ST

Leads not

shown

SGD-1.5/120-LY43 120 3.5 Solder Pads AL

Shown

SGD-2/350-LY11 350 7.5 Ribbon Leads ST

actual size

7.60 mm

SGD-2/350-LY13 350 10 Ribbon Leads AL

V

SGD-2/350-LY41 350 7.5 Solder Pads ST

Leads not

shown

SGD-2/350-LY43 350

Shown

SGD-2D/350-LY11 350 10 Ribbon Leads ST

actual size

7.10 mm

SGD-2D/350-LY13 350 14 Ribbon Leads AL

V

SGD-2D/350-LY41 350 10 Solder Pads ST

Leads not

shown

SGD-2D/350-LY43 350

Shown

SGD-3/350-LY11 350 9.5 Ribbon Leads ST

actual size

7.00 mm

SGD-3/350-LY13 350 13 Ribbon Leads AL

V

SGD-3/350-LY41 350 9.5 Solder Pads ST

Leads not

SGD-3/350-LY43 350 13 Solder Pads AL

shown

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/sgd_linear1-axis for Pricing and Details

SGD-1.5/120-LY11 120

V

V

V

V

DISCOUNT SCHEDULE

The linear pattern strain gages are available in a variety or
styles and sizes. OMEGA is offering miniature linear patterns
for strain measurement of a stress concentration
or high gradient areas. We also have wide or narrow grid
patterns, and small, medium or large patterns. To determine
if the strain gages have temperature characteristics matched
to steel or aluminum, see the column labeled “COMP”
short for compensation, “ST” indicates steel, “AL” indicates
aluminum, “UNC” indicates uncompensated. See the column
labeled “BTP” for accessory bondable terminal pad model
numbers.

Dimensions are listed for pattern gage grid length (A) and
width (B), and the matrix or carrier length (C) and width
(D). The patterns include alignment triangles. The carrier or
matrix material on the patterns may be trimmed in the field
on all sides to within 0.25 mm of the foil grid with no effect on
strain gage performance.

DIMENSIONS

mm (inch)

†

A B C D

1.50 1.20 4.70 3.40
(0.059) (0.047) (0.185) (0.134)

Miniature linear pattern
Measurement of stress

concentration

120 Ω

2.00 2.50 7.60 5.80
(0.079) (0.098) (0.299) (0.228)

Miniature linear pattern
Measurement of stress

concentration, higher resistance,

reduced heat generation

350 Ω

10 Solder Pads AL

1.90 4.80 7.10 6.60
(0.075) (0.189) (0.280) (0.260)

Miniature linear pattern,

grid width, wide

350 Ω

14 Solder Pads AL

3.20 2.50 7.00 4.00
(0.126) (0.098) (0.276) (0.157)

Linear pattern leads/pads

at one end of grid

350 Ω

† For dimensions key, visit omega.com/pressure

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories
visit omega.com/pressure

Ordering Example: SGD-3/350-LY11, 3.2 mm grid,

350 Ω nominal-resistance strain gage

E-16

(Vrms)

TERMINATION

2.5 Ribbon Leads ST

Custom-Designed

Strain Gages

Available!

No Minimum Quantities.

Consult Engineering.

COMP PAD

NOTE

ST = Steel
AL = Aluminum

omega.com/btp

BTP-1

BTP-2

BTP-2

BTP-3

STRAIN GAGES

E

PRECISION STRAIN GAGE

SGD-3/120-LY11_13_41_43

SGD-4/120-LY11

7.078 mm

26-CONDUCTORS

LIMB WIDTH 0.106 mm

GAP WIDTH 0.086 mm

AGL 3.8 mm

SGD-5/350-LY11

5.185 mm

28-CONDUCTORS

LIMB 0.053 mm

GAP 0.048 mm

AGL 4.5 mm

SGD-3S/120-LY11

3.294 mm

12-CONDUCTORS

LIMB WIDTH 0.0485 mm

GAP WIDTH 0.0640 mm

PRECISION LINEAR PATTERN FOR STATIC AND
DYNAMIC APPLICATIONS

omega.com/btp

To Order

NOM.
RESIS­ TANCE
MODEL NO. (Ω) A B C D (Vrms)

Shown

actual size

7.80 mm

SGD-3/120-LY13 120 5.5 Ribbon Leads AL

V

SGD-3/120-LY41 120 4 Solder Pads ST

Leads not

shown

SGD-3/120-LY43 120

Shown

SGD-3S/120-LY11 120 4.5 Ribbon Leads ST

actual size

6.60 mm

SGD-3S/120-LY13 120 6 Ribbon Leads AL

V

SGD-3S/120-LY41 120 4.5 Solder Pads ST

Leads not

SGD-3S/120-LY43 120

shown

Shown

actual size

SGD-4/120-LY11 120 9 Ribbon Leads ST

7.90 mm

SGD-4/120-LY13 120 12 Ribbon Leads AL

V

SGD-4/120-LY41 120 9 Solder Pads ST

Leads not

shown

SGD-4/120-LY43 120

Shown

SGD-5/350-LY11 350 12 Ribbon Leads ST

actual size

9.80 mm

SGD-5/350-LY13 350 17 Ribbon Leads AL

V

SGD-5/350-LY41 350 12 Solder Pads ST

Leads not

SGD-5/350-LY43 350

shown

DISCOUNT SCHEDULE

1 to 10 pkgs .................. Net

11 to 24 pkgs ..................5%

25 to 49 pkgs .................10%

50 and up and OEM .. Consult Factory

TYPICAL STRAIN GAGE INSTALLATION

Visit omega.com/sgd_linear1-axis for Pricing and Details

DIMENSIONS

mm (inch)

GRID CARRIER

SGD-3/120-LY11 120 4 Ribbon Leads ST

3.00 1.50 7.80 3.80
(0.118) (0.059) (0.307) (0.150)

Linear pattern,

V

grid width narrow

120 Ω

3.00 1.70 6.60 3.30
(0.118) (0.067) (0.260) (0.130)

Linear pattern,

V

small size

120 Ω

3.80 5.70 7.90 7.10
(0.150) (0.224) (0.311) (0.280)

Linear pattern,

V

grid width wide

120 Ω

4.50 3.20 9.80 5.20
(0.177) (0.126) (0.386) (0.205)

Linear pattern,

V

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories
visit omega.com/pressure

Ordering Example: SGD-4/120-LY13, 3.8 mm grid,

120 Ω nominal-resistance strain gage.

Ribbon Leads from
Strain Gage or User Supplied
Fine Gage Wire (30 AWG)

medium size

350 Ω

†

MAX V* TEMP TERM

6 Solder Pads AL

12 Solder Pads AL

Instrumention Wire
20 to 28 AWG

5.5 Solder Pads AL

17 Solder Pads AL

Custom-Designed

Strain Gages

No Minimum Quantities.

Consult Engineering.

TERMINATION

Available!

COMP PAD

NOTE

ST = Steel
AL = Aluminum

† Dimensions Key:

C
A

BTP-3

BTP-3

BTP-3

BTP-4

BD

GRID
A: Active gage length
B: Active gage width

Adhesive

Bondable Terminal Pads (BTP) for Stress Relief
and Junction for Different-Gage Wires

E-17

CARRIER
C: Matrix length
D: Matrix width