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

MEI2 Awards $5K to Local Start-Up at 2018 Clean Energy Summit

Students Earn Second Place for ExoHand Design 

The App that Fights Congestion, Emissions

Can Cascading Pools Help Restore the Chesapeake Bay?

Maryland students place third in autonomous drone race

Bhattacharyya awarded NIH Grant to Explore Real-time Neural Decoding for Calcium Imaging

UMD Transportation Experts Awarded $1 Million DOE Grant to Reduce Transportation Energy Use and Emissions

With Engineering Projects, UMD Students Seek to Boost Education Access, Public Health, and Sustainability

Maryland Robotics Center students participate in FAA STEM outreach event

Shoukry, Krishnaprasad receive NSF grant for resilient-by-cognition cyber-physical systems

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar