Boeing 787 Dreamliner wing break test -- look for our signature blue Interface load cells
Aero Engineering USA 2010 | Pasadena, California | November 2–3, 2010 | Booth TBD
Auto Expo North America 2010 | Novi, Michigan | October 26–28, 2010 | Booth 6020
Auto Expo China 2010 | Beijing, China | September 14–16, 2010 | Booth 6020
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.
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.
The Interface strain gage alloy provides significantly greater fatigue life than the widely-used constantan gages used by the competition.
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.