SGT-3G/350-FB11

## _**transducer quality strain gage Full WHeatstOne Bridge, Bending Or aXial tensiOn Or cOMPressiOn PerPendicular grids single surFace gaging**_ 

Quickly and easily design and build your own transducer for bending or axial strain applications where only one side of the beam is available for strain gage installation. Look up the Modulus of Elasticity and the Yield Strength of your material, and design your spring element so that you will be working in the linear portion of the stress-strain curve. For best results use stainless steel or aluminum and match the material to the strain gage temperature characteristics. Install one full bridge, as the one carrier piece has all 4 strain 

gages. Having one carrier with multiple strain gages offers several advantages. Alignment of the 4 strain gages with respect to each other has already done for you. Strain gages share common ribbon leads or solder pads which saves wiring steps and valuable time. Simply, position the bondable terminal pad close by, and connect your 4 leads (+Excitation, -Excitation, +Signal, -Signal) to the already completed full Wheatstone bridge. Power up your transducer, and calibrate it with a known applied load. The full bridge has 2 fully 

active strain gages in the principal stress direction and 2 strain gages that will see the effect of Poisson’s Ratio. The full Wheatstone bridge tends to cancel thermal and off-axis errors. SGT-3G/350-FB** has 5 terminals, which means it has an open corner at the signal terminals, for addition of zero temperature compensation, and zero balance compensation resistors. All of the other full bridge gages on this page have 4 terminals. 

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To Order<br>DIMENSIONS mm (inch) [†]<br>NOM.<br>gRID CARRIER<br>RESIS-<br>TANCE  MAx V*<br>gAgE PATTERN Leads not shown MODEL NO. Pkg of 5 ( Ω ) A b C D (Vrms) TERMINATION TEMP COMP<br>Shown actual   SgT-3g/350-Fb11 350 9 Ribbon Leads ST<br>size, 10.5 mm 2.5       2.9       10.5       9.3<br>(0.098) (0.114) (0.413) (0.366)<br>SgT-3g/350-Fb13 350 13 Ribbon Leads AL<br>Full bridge for bending<br>V SgT-3g/350-Fb41 350 surface gaging, 5 leads/solder or axial strain, single   9 Solder Pads ST<br>pads, open corner in bridge<br>V SgT-3g/350-Fb43 350 350 Ω 13 Solder Pads AL<br>Shown actual<br>SgT-2/1000-Fb11 1000 12 Ribbon Leads ST<br>size, 8 mm<br>1.8       2.4       8.0       6.5<br>SgT-2/1000-Fb13 1000 (0.071) (0.094) (0.315) (0.256) 16 Ribbon Leads AL<br>V V Full bridge for bending or<br>SgT-2/1000-Fb41 1000 axial strain, single surface gaging  12 Solder Pads ST<br>1000 Ω<br>SgT-2/1000-Fb43 1000 16 Solder Pads AL<br>Shown actual   SgT-2/350-Fb11 350 6.5 Ribbon Leads ST<br>size, 10 mm 1.8        2.0        10        9.0<br>SgT-2/350-Fb13 350 (0.071) (0.079) (0.394) (0.354) 9 Ribbon Leads AL<br>Full bridge for bending<br>SgT-2/350-Fb41 350 or axial strain  6.5 Solder Pads ST<br>350 Ω<br>V V SgT-2/350-Fb43 350 9 Solder Pads AL<br>Shown actual<br>SgT-4/1000-Fb11 1000 23 Ribbon Leads ST<br>size, 14.8 mm<br>  4.0       4.3      14.8      11.1<br>SgT-4/1000-Fb13 1000 (0.157) (0.169) (0.583) (0.437) 33 Ribbon Leads AL<br>Full bridge for bending or<br>V V SgT-4/1000-Fb41 1000 axial strain, single surface gaging  23 Solder Pads ST<br>1000 Ω<br>SgT-4/1000-Fb43 1000 33 Solder Pads AL<br>-S   -E   +S   +E<br>†  For dimensions key, visit us online.<br>DISCOUNT SCHEDULE * [ Maximum permitted bridge energizing voltage (Vrms).  ]<br>1 to 10 pkgs . . . . . . . . . . . . . . . . . . Net ** [ FB11, FB13, FB41 or FB43]      ST = Steel<br>     AL = Aluminum<br>11 to 24 pkgs . . . . . . . . . . . . . . . . . .5% Note:  For strain gage accessories, visit us online.<br>25 to 49 pkgs . . . . . . . . . . . . . . . . .10% Ordering Example: SGT-2/350-FB11,  package of 5, full bridge<br>50 and up and OEM . .Consult Factory for bending, nominal resistance 350  Ω .<br>NOTE<br>V V<br>V V<br>V V V V<br>V V<br>V V<br>V V V V<br>V<br>V<br>V V<br>V V<br>V V<br>**----- End of picture text -----**<br>


**E-45**