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Interface in Action

Boeing 787 Dreamliner Wing Test with Interface Load Cells Interface load cells in use during Boeing 787 Dreamliner wing load testing

Upcoming Events

Auto Expo China 2010 | Beijing, China | September 14–16, 2010 | Booth TBD

Auto Expo Germany 2010 | Stuttgart, Germany | June 22–24, 2010 | Booth TBD

Aerospace Testing 2010 | Hamburg, Germany | May 18–20, 2010 | Booth TBD

Measurement Science Conference 2010 | Pasadena, California | March 22–26, 2010 | Booth TBD

NCSLI Workshop and Symposium 2009 | San Antonio, Texas | July 26-30, 2009 | Booth 304

Automotive Testing Expo 2009 Europe | Messe Stuttgart, Germany | June 16-18, 2009 | Booth 1932

Proprietary Interface Strain Gages

Unique Formulation, Made In-House

Interface load cells are constructed with strain gages manufactured by Interface from a unique proprietary alloy which provides inherently temperature compensated output. They are manufactured in our facility, in order to provide the necessary strict control of the formulation and the forming process.

Matched Temperature Characteristics

The temperature characteristic of the strain gages is adjusted by special processes to exactly match and counteract the temperature characteristic of the modulus of the load cell structural material, thereby providing output which is relatively temperature insensitive. The bridge circuit is simple, reliability is high, and changes in output sensitivity caused by temperature variations are automatically compensated.

By contrast, competitive load cells use strain gage alloys which require the addition of temperaturesensitive resistors in the bridge circuit for compensation, thus reducing reliability. Since the resistors aren’t in intimate thermal contact with the cell’s flexure, the dynamic thermal performance, resistance to thermal gradients, and thermal response times are also severely affected.

Comparison of Interface strain gage design to competitors

Longer Fatigue Life

The Interface strain gage alloy provides significantly greater fatigue life than the widely-used constantan gages used by the competition.

Higher Output

A third advantage of the Interface strain gage is higher output, providing higher signal-to-noise ratio and opportunity for higher resolution in precision measurement applications.