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Semiconductor Strain Gages | Backed Half-Bridge | SSGH

BACKED SEMICONDUCTOR STRAIN GAGES HALF-BRIDGE (SSGH) & FULL-BRIDGE (SSGF)
Micron Instruments offers a wide range of semiconductor backed half and full bridge strain gages. Backed bridges are installed on a flexible high temperature insulator that can be bent around a one half inch radius without hurting the gage .
Our Backed Gages are constructed using two thermally matched gages applied onto a backing which allows them to track each other.
Configured For Bending, Load and Torque Measurements.

Micron Instruments Backed Half-Bridge and Full-Bridge Semiconductor Strain GagesBacked Semiconductor Half-Bridge and Full-Bridge Strain Gages are a range of semiconductor backed bridged strain gages. The gages are installed on a flexible insulated circuit with easy to solder pads which can be bent without hurting the gage and will perform like a foil gage except that the resistive change is 30 to 55 times greater.

Our Half-Bridge Backed Gages are constructed using two thermally matched gages bonded onto a backing which allows them to track each other. When used as one side of the bridge, they compensate each other thermally even when bonded since they both see the same thermal expansion and temperature. When both gages have a gage factor (GF) of 140 the transverse gage will normally see the Poisson’s effect, which for most steels is 0.3. This reduces the transverse gage factor to 42. The average GF for the half bridge would be 91.
Our Full-Bridge Backed Gages are constructed using four thermally matched gages bonded to a backing.

Backed bridged gages are available in three styles: Bending, Load and Torque

BACKED SEMICONDUCTOR STRAIN GAGES HALF-BRIDGE (SSGH) & FULL-BRIDGE (SSGF)
Micron Instruments offers a wide range of semiconductor backed half and full bridge strain gages. Backed bridges are installed on a flexible high temperature insulator that can be bent around a one half inch radius without hurting the gage .

Our Backed Gages are constructed using two thermally matched gages applied onto a backing which allows them to track each other.
When used as one side of the bridge, they compensate each other thermally even when bonded since they both see the same thermal expansion and temperature. When both gages have a gage factor (GF) of 140 the transverse gage will normally see the Poisson’s effect, which for most steels is 0.3. This reduces the transverse gage factor to 42. The average GF for the half bridge would be 91.
HALF AND FULL BRIDGE GAGE CONFIGURATIONS

BENDING

BENDING "U"

LOAD

LOAD
(Full Bridge)

TORQUE
Style 1

TORQUE
Style 2

Backed Gage Half-Bridge Bending Applications

Backed "U" Gage Half-Bridge Bending Applications

Backed Gage Half-Bridged Load Applications

Backed Gage Full-Bridged Bending Applications

Backed Gage Half-Bridge Torque Applications

Back Gage Half-Bridged Torque Applications

SPECIFICATIONS
• Bar gages ranges available 120 ohm up to 1000 ohms
• Czochralski pulled boron doped silicon
• Base material Duraver FR4 TG-250
• Tinned Copper Solder Pads and Traces

Gages with Low resistance down to 10 ohm up to 10k ohms are also available, call (805) 522-4676 for details.

Backed Semiconductor Strain Gages Half Bridge (SSGH)

Part Number
           X     Y

Width
Z

Lead
Attachment

Thickness

Resistance
Ohms@
78° F

Gage
Factor

TCGF

TCR

SSGH-080-050-120PB

.008

WL

.0004

120 ±20

120 ±10

-9%

5%

SSGH-080-050-345PB

.008

WL

.0004

345 ±40

140 ±10

-13%

16%

SSGH-060-033-500PB

.008

WL

.0004

540 ±50

140 ±10

-13%

15%

SSGH-060-033-1000PB

.008

WL

.0004

1050 ±75

155 ±10

-18%

24%

SSGH-060-033-5000PB

.008

WL

.0004

5000 ±500

175 ±10

-23%

47%

SSGH-060-033-2000PUB

.016

WL

.0004

2000 ±100

155 ±10

-18%

25%

SSGH-080-050-10,000PUB

.016

WL

.0004

10000 ±1000

175 ±10

-23%

42%

Standard Bridge Matching

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

X=Gage Overall Length
Y=Gage Active Length
Z=Gage Width

"BAR" Gage Dimensions

Bar Gage Dimensions


"U" Gage Dimensions

"U" Gage Dimensions

Semiconductor Strain Gage FAQ's and Technical Notes

  1. Semiconductor Gage Terms & Definitions
    1. What is Gage Factor
    2. What is Thermal Coefficient of Gage Factor (TCGF)
    3. What is Thermal Coefficient of Gage Resistance (TCR)
  2. Determining Excitation Voltage for Micron Instruments Semiconductor Strain Gages
  3. Thermal Matching Information-Gage Sets
  4.  Which Type Gage Should I use
  5. How to Remove Semiconductor Strain Gages from Protective Case
  6. How to Install Semiconductor Strain Gage

Semiconductor Strain Gages - Backed Half & Full Bridge

Data Sheet Covers the following gage configurations: Bending, Load, Torque

Standard Backed Half & Full Bridge Gages Data Sheet with Drawings

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