Engineering Data Sheet
The Engineering Data Sheet included in each
package of Micro-Measurements precision strain gages
provides pertinent product and technical information
for the use of the gages in strain measurements.
Parameters
|
Type
Series
,
S-T-C number
,
pattern
, and grid resistance of the strain gage as
determined by the Micro-Measurements
Gage Designation System
.
Option
Any
Optional
Feature
the gage contains.
Quantity
Number of uniaxial gages or rosettes
contained in the package at the time it was
shipped. Typically 5 per package.
Lot Number
Designation for a group of gages with grid
elements from a common melt of strain-sensing
alloy, subjected to the same mechanical and
thermal processes during manufacturing.
Resistance
Statistical average and 2-Sigma (95%
confidence) limits for the electrical resistance
of the gage grids.
|
Gage Factor
Obtained through calibration of the
specific gage type, the gage factor,
GF
, is:
where
R
o
is the initial unstrained resistance of the
gage. A measure of sensitivity of the gage to
strain, the gage factor is reported as the
statistical average with 2-Sigma (95% confidence)
limits.
Transverse Sensitivity
Obtained through calibration, the
transverse sensitivity factor,
K
t
, relates the response of the gage grid to
transverse and axial strains. The
transverse
sensitivity
is given in percent, and includes the absolute
uncertainty.
Code
An internal designation used by
Micro-Measurements for identifying the gages in
the package. |
|
|
Vishay Measurements Group