Clark School Home UMD

ISR News Story

Yu, Balachandran awarded US Patent 7,428,054


ISR-affiliated Assistant Professor Miao Yu (ME) and Professor Balakumar Balachandran (ME) have been awarded US Patent 7,428,054 for "Micro-optical sensor system for pressure, acceleration, and pressure gradient measurements."

The invention is a micro-optical fiber tip based sensor system for pressure, acceleration, and pressure gradient measurements in a wide bandwidth, the design of which allows for multiplexity of the input side of the system is based on micro-electromechanical fabrication techniques. The optical portion of the system is based on low coherence fiber-optic interferometry techniques which has a sensor Fabry-Perot interferometer and a read-out interferometer combination that allows a high dynamic range and low sensitivity to the wavelength fluctuation of the light source. A phase modulation and demodulation scheme takes advantage of the Integrated Optical Circuit phase modulator and multi-step phase-stepping algorithm for providing high frequency and real time phase signal demodulation. The system includes fiber tip based Fabry-Perot sensors each of which has a diaphragm that is used as a transducer.

You can view ISR patents at any time on our patents page.

October 2, 2008


Prev   Next

 

 

Current Headlines

University of Maryland School of Engineering Announces Unprecedented Investment from A. James & Alice B. Clark Foundation

UMD Researchers Develop Stable, Robust Li-ion Battery Chemistry

Five ISR faculty part of $8 million NIH grant to combat hearing loss in older people

Building Together Announcement Garners Extensive Media Coverage

Maryland Power Electronics Laboratory participates in Maryland Manufacturing Day

The Home of the Future

Espy-Wilson's technology included in new Alcatel MOVE TIME smart watch

John Baras named AIAA Associate Fellow

Empowering Voices in Engineering

Research Spearheaded by UMD Receives NSF RAPID Support

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar