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General

Bar Shaped Gages

Semiconductor strain gages are devices which vary in resistance as strain is applied to them. This property makes them very useful in measuring extremely small amounts of force with accuracy and precision. Creative uses for these gages have ranged from the measurement of internal pressures inside solid rocket engines to delicate medical apparatus used in microsurgery.

Gages made from semiconductor materials have advantages over more conventional types of strain gages. These include homogeneity, increased “sensitivity”, and decreased size. Gages made by Micron Instruments range down to 0.027" (0.69 mm) in length.


Micron semiconductor strain gages are made from Czochoralski pulled boron doped bulk silicon. They have no P/N junction. The silicon is etched to shape, eliminating the potential for molecular dislocation or cracks, thereby optimizing performance.

All gages manufactured by Micron must pass through rigorous tests before they are approved for use by our customers. The behavior of each gage at different temperatures is measured and the gages are matched to each other based upon these measurements. Customers may purchase Gages in Singles or matched sets of 2, 4, or more gages. Bulk Gages are available without Data.

Bar Shaped Semiconductor Strain Gages
High Stability, high accuracy, low cost semiconductor strain gages for all applications. The gages, made from P-doped silicon, are the heart of the Micron Instruments pressure and force transducers.
 
Schematic
 
Bar Semiconductor Strain Gage
 
     
X = Overall Length
Y = Active Area
Z = Width
 

Specifications

Part Number
       X      Y
Dimension
    Z
Lead Type Thickness Resistance
@ 78 deg F
Gage Factor TCGF* TCR*
SS-027-013-500P
0.009" Ball Bond 0.0004" 540 ± 50 Ohms

155 ± 10

-18

24

SS-037-022-500P 0.009" Ball Bond 0.0004" 540 ± 50 Ohms

150 ± 10

-13

17

SS-060-033-500P 0.008" Welded 0.0004" 540 ± 50 Ohms

140 ± 10

-13

15

SS-060-033-1000P 0.008" Welded 0.0004" 1050 ± 75 Ohms

155 ± 10

-18

24

SS-080-050-120P 0.008" Welded 0.0004" 120 ± 20 Ohms

120 ± 10

-9

5

SS-080-050-230P 0.008" Welded 0.0004" 230 ± 30 Ohms

120 ± 10

-9

5

SS-080-050-345P 0.008" Welded 0.0004" 345 ± 40 Ohms

140 ± 10

-13

16

SS-080-050-500P 0.008" Welded 0.0004" 540 ± 50 Ohms

140 ± 10

-13

16

SS-080-050-500P 0.008" Ball Bond 0.0004" 540 ± 50 Ohms

140 ± 10

-13

16

SS-080-050-1000P 0.008" Welded 0.0004" 1050 ± 75 Ohms

155 ± 10

-18

24

SS-090-060-500P 0.008" Welded 0.0004" 540 ± 50 Ohms

140 ± 10

-13

16

SS-090-060-1150P 0.008" Welded 0.0004" 1125 ± 75 Ohms

155 ± 10

-18

24

SS-150-125-15P 0.009" Welded 0.0010" 15 ± 2 Ohms

100 ± 10

-10

6

SS-150-125-25P 0.009" Welded 0.0008" 25 ± 3 Ohms

100 ± 10

-10

6

SS-250-225-120P 0.009" Welded 0.0004" 120 ± 20 Ohms

100 ± 10

-10

6

 

Standard Bridge Matching

Temperature °F 78° 278°  
Standard Matching ±0.6% ±0.4% ±0.4% Percent of Base Resistance
 

Semiconductor Strain Gage FAQ'S

What is Gage Factor
What is Gage Factor
What is TCGF
What is Thermal Coefficient of Gage Factor (TCGF)
What is TCR
What is Thermal Coefficient of Resistance (TCR)
 
Unpacking Gages
How to Unpack your Gage
Installing Gages
How to Install your Gage
Bar Gage Data Sheet
Bar Gage Data Sheet
Bar Gage Data Sheet
Thermal Matching Information
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