EL5156 INTERSIL [Intersil Corporation], EL5156 Datasheet - Page 14

• Manufacturer Part Number: EL5156
• Manufacturer: INTERSIL [Intersil Corporation]

Strain Gauge
The strain gauge is an ideal application to take advantage of
the moderate bandwidth and high accuracy of the EL5152.
The operation of the circuit is very straightforward. As the
strain variable component resistor in the balanced bridge is
subjected to increasing strain, its resistance changes,
14
FIGURE 37. STRAIN GAUGE OPERATIONAL CIRCUIT
EL5156, EL5157, EL5256, EL5257
resulting in an imbalance in the bridge. A voltage variation
from the referenced high accuracy source is generated and
translated to the difference amplifier through the buffer
stage. This voltage difference as a function of the strain is
converted into an output voltage.
September 13, 2007
FN7386.5