Model 8686H, Precision Resistance-Ratio Bridge

Period of Performance: 01/01/2009 - 12/31/2009


Phase 2 SBIR

Recipient Firm

Circuit Equipment Corporation
8686 Cardinal Dr.
Kirtland, OH 44094


The result of this project will be a fully functional prototype of the Model 8686H Precision Resistance-Ratio AC Bridge. The unit is capable of measuring resistances from 0 to 400 ohms with better than 0.1 uohm resolution and an accuracy of better than +/-0.05ppm. The unit will have advanced features such as a built-in web-browser, USB interface and built-in complex functions. Examples of such complex functions are complimentary ratio-check and zero ohms power extrapolation for sensor measurements. The web-browser introduces features never before available in a Precision Resistance-Ratio AC Bridge.