Patents by Inventor Mihal Gologanu

Mihal Gologanu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Surface acoustic wave based micro-sensor apparatus and method for simultaneously monitoring multiple conditions
    Patent number: 8317392
    Abstract: A SAW-based micro-sensor apparatus for simultaneously monitoring acceleration/vibration and temperature utilizing a sensing element configured as a SAW device (e.g., SAW resonator or SAW delay line). The SAW device can be located in different locations on a substrate with respect to a thin piezoelectric diaphragm comprising an inertial mass. The temperature-compensated acceleration/vibration can be measured utilizing a frequency difference between an acceleration sensitive SAW resonator (e.g., SAW-g) and a temperature sensitive SAW resonator (e.g., SAW-T). The temperature can be measured utilizing a frequency shift provided by the SAW-T and a temperature reference SAW resonator (e.g., SAW-R). Similarly, the phase response of different reflectors of the SAW delay line can be utilized to differentially measure the acceleration/vibration and temperature.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: November 27, 2012
    Assignee: Honeywell International Inc.
    Inventors: Cornel Cobianu, Ioan Pavelescu, Mihal Gologanu
  • SURFACE ACOUSTIC WAVE BASED MICRO-SENSOR APPARATUS AND METHOD FOR SIMULTANEOUSLY MONITORING MULTIPLE CONDITIONS
    Publication number: 20100158071
    Abstract: A SAW-based micro-sensor apparatus for simultaneously monitoring acceleration/vibration and temperature utilizing a sensing element configured as a SAW device (e.g., SAW resonator or SAW delay line). The SAW device can be located in different locations on a substrate with respect to a thin piezoelectric diaphragm comprising an inertial mass. The temperature-compensated acceleration/vibration can be measured utilizing a frequency difference between an acceleration sensitive SAW resonator (e.g., SAW-g) and a temperature sensitive SAW resonator (e.g., SAW-T). The temperature can be measured utilizing a frequency shift provided by the SAW-T and a temperature reference SAW resonator (e.g., SAW-R). Similarly, the phase response of different reflectors of the SAW delay line can be utilized to differentially measure the acceleration/vibration and temperature.
    Type: Application
    Filed: January 13, 2009
    Publication date: June 24, 2010
    Inventors: Cornel Cobianu, Ioan Pavelescu, Mihal Gologanu