Partnering with C-4 Systems of General Dynamics in Needham, MA, this Worcester Polytechnic Institute Major Qualifying Project team explored the idea of designing a completely digital temperature sensor on field-programmable gate arrays. The goals of this MQP were (1) to find consistency between our research and results, and (2) to design a sensor capable of outputting a range of 0-70C, a resolution of 0.1C/count, and an error of +/-1C. Since propagation delay is dependent on temperature, we designed a ring oscillator out of logical inverters and counted the number of set clock periods to measure the length of the oscillator's total delay. We implemented our design and determined its measuring capability to be 20-70C with an average resolution of ~0.13C/count and an error of +/-2.75C.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Pierre-Louis, Gregory D.
• Wells, Justin

Contributors

• Chopra, Jatin

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-043009-150645

Advisor

• Sunar, Berk

Year

• 2009

Sponsor

• General Dynamics

Date created

• 2009-04-30

Resource type

• Major Qualifying Project

Major

• Electrical & Computer Engineering

Rights statement

• In Copyright