Standard Gage Designation
System
The following Strain Gage Designation System applies
to all general-purpose Micro-Measurements gages. |
Carrier Matrix (Backing)
E
Open-faced general-purpose gage with tough,
flexible cast
polyimide
backing. Various options are available, including
lead connection features and protective
encapsulation.
CE
Flexible gages with a cast polyimide backing
and encapsulation featuring large, rugged,
copper-coated solder tabs. This construction provides
optimum capability for direct leadwire attachment.
N2
The 'N2' matrix provides an
open-faced gage on a thin, high-performance laminated
polyimide film backing.
S2
Gage grid and solder tabs fully encapsulated
in a thin, flexible, laminated polyimide film.
Provided with large [0.030 in (0.75 mm)] solder pads
for ease of leadwire attachment.
W
Provides a gage fully encapsulated in
glass-fiber-reinforced
epoxy-phenolic resin
. High-endurance leadwires.
S
Full encapsulation identical to the W matrix,
but with solder dot connections instead of
leadwires. |
Foil Alloy
A
Alloy
Constantan alloy in
self-temperature-compensated form.
P
Alloy
Annealed constantan. Used for high-elongation
or post-yield gages.
D
Alloy
Isoelastic alloy. High gage factor and high
fatigue life.
K
Alloy
A nickel-chromium alloy (similar to Karma)
used for high-performance
self-temperature-compensated gages. |
Self-Temperature
Compensation
The S-T-C number is the approximate
thermal expansion
coefficient in ppm/deg F of the structural
material
on which the gage is to be used. The following S-T-C
numbers are available:
A Alloy
00, 03, 05, 06, 09, 13, 15, 18
P Alloy
08
K Alloy
00, 03, 05, 06, 09, 13, 15
Gages with S-T-C's of 30, 40, or 50 are available
as
Special-Purpose
Gages
.
The
D Alloy
is not available in self-temperature-compensated
form. 'DY' is used instead. |
Active Gage Length
The active gage length in mils [0.001 in (0.0254
mm)]. |
Grid & Tab Geometry
Unique for each grid and tab geometry. |
Resistance
Nominal resistance of the gage in ohms. |
Standard Optional Features
Most of the following options apply to the EA- or
ED-Series gages:
-
Option
W
Integral printed circuit terminal,
polyimide encapsulation.
-
Option
E
Polyimide encapsulation, leaving a portion
of solder tab exposed.
-
Option
SE
Solder dots plus polyimide encapsulation.
-
Option
L
Preattached, soft, formable copper leads.
-
Option
LE
Leads plus polyimide encapsulation.
-
Option
P
Preattached leadwire cables and
encapsulation.
-
Option
P2
Preattached leadwire cables for CEA-Series
gages.
|
|