SBIR-STTR Award

Optimized preventative maintenance schedules and in-situ monitoring of vehicle fluid conditions are essential for vehicle reliability, especially when operating in extreme conditions. In the particular case of engine oil, while many types of sensors exist, none directly measure in real time the chemical changes occurring as the oil degrades. A novel, miniature electron spin resonance oil condition sensor that electronically detects free radical concentration in engine oil is proposed. In combination with commercially-available pH, dielectric and humidity sensors adapted for automotive use, a full suite of onboard vehicle fluid diagnostic sensors can be implemented.

Keywords:
MEMS, ESR, FREE RADICALS, SENSOR, ONBOARD, EMBEDDED.

Aesopís Micro-ESRô sensor is a miniature electron spin resonance (ESR) sensor designed to continuously measure oxidation, soot, ferrous particles and humidity levels in engine oil and hydraulic fluid. The Micro-ESR sensorís small size, low power consumption and low cost make it ideal for integration into vehicles, heavy machinery, generators and fixed engine installations. This sensor will allow users to confidently extend their engineís oil drain interval and replace many of the functions of an oil analysis lab with a single onboard device.

Keywords:
Electron Spin Resonance, Micro-Esr, Oil Analysis, Preventative Maintenance, Extended Oil Drain Interval, Oil Breakdown Sensor