micro-measurements@vishay.com
Large Patterns
Vishay Micro-Measurements
Document No: 11513
Revision 21-Aug-03
www.vishaymg.com
84
GAGE OVERALL GRID OVERALL
LENGTH LENGTH WIDTH WIDTH
MATRIX SIZE
Special Purpose Sensors - Large Patterns
GAGE PATTERN
Actual size shown.
Enlarged when necessary for definition.
ES = Each section CP = Complete pattern
S = Section (S1= Sec 1) M = Matrix
inch
millimeter
GAGE RES. IN OHMS
DESIGNATION Tolerance is
Insert desired S-T-C increased when OPTIONS AVAILABLE
number in spaces Option W, E, SE, LE,
marked XX. or P is specified.
The strain gage patterns listed on these pages employ long
measuring grids, and are most commonly used for special-
purpose applications where strain averaging is desired. For
example, when measuring strain in concrete it is usually the
average strain that is sought rather than any severe local
fluctuations in strain occurring at the interfaces between the
aggregate particles and the cement.
In general, for strain measurement on nonhomogeneous
material it is preferable to select a gage length that is large
with respect to the size of the inhomogeneity. The large
gage patterns listed in this section are well-suited to many
of these applications.
GAGE OVERALL GRID OVERALL
LENGTH LENGTH WIDTH WIDTH
MATRIX SIZE
750DT
750DU
0.750 1.000 0.110 0.110
19.05 25.40 2.79 2.79
1.14L x 0.21W 29.0L x 5.3W
Large general-purpose gage with tab at each end of grid. See also
750DU pattern.
N2A-XX-750DT-120
EA-XX-750DT-120
WA-XX-750DT-120
WK-XX-750DT-350
EP-08-750DT-120
SA-XX-750DT-120
SK-XX-750DT-350
120 ±0.15%
120 ±0.15%
120 ±0.3%
350 ±0.3%
120 ±0.15%
120 ±0.3%
350 ±0.3%
E, L, LE
E, L, LE
SEE PATTERN
BELOW
0.750 1.000 0.110 0.110
19.05 25.40 2.79 2.79
1.11L x 0.21W 28.2L x 5.3W
Large general-purpose gage. Similar to 750DT pattern except for
resistance.
N2A-XX-750DU-350
EA-XX-750DU-350
WA-XX-750DU-350
WK-XX-750DU-10C
EP-08-750DU-350
SA-XX-750DU-350
SK-XX-750DU-10C
350 ±0.15%
350 ±0.15%
350 ±0.3%
1000 ±0.3%
350 ±0.15%
350 ±0.3%
1000 ±0.3%
E, L, LE
E, L, LE
SEE PATTERN
BELOW