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Optimizing Strain Gage Excitation Levels
A calculator for

Inactive Series Resistor

For reducing bridge voltage & power-density over the grid area.

Note
Corrections must be made to the indicated strains when an inactive resistor is utilized to reduce bridge voltage.


Independent Variables
Power Density ( or ), , for combination of:
Heat Sink Condition (relative)
Test Type (static or dynamic)
Accuracy Requirement (relative),

Gage Resistance (ohms),
Grid Area ( or ),
Bridge Excitation (Vdc),

Dependent Variable
Inactive Resistor (ohms),


Calculator
Test Type Static Dynamic

Accuracy Requirements High Moderate Low

Heat Sink Conditions Example

Power Density to watts/in^2 to kilowatts/m^2

Gage Resistance 120 Ohms 350 Ohms 1000 Ohms Other

Gage Pattern

Length in mm

Width in mm

Bridge Excitation volts

Inactive Resistor: to Ohms
Related Calculator
A for making corrections to the indicated strains when an inactive resistor is utilized to reduce bridge voltage.