Patents by Inventor HAMID E. LIMODEHI

HAMID E. LIMODEHI 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).

  • Humidity sensing system and method
    Patent number: 10527539
    Abstract: A humidity sensing method and system comprising a transmitter, comprising a fiber optic head and a light source comprising a single LED emitting a measuring light, a receiver, and a sensing assembly comprising a plurality of optical fibers each comprising a first end fed the measuring light, a transducer positioned along a length thereof, the transducer comprising a side-polished portion of the optical fiber, the side polished portion coated with a gold layer and a film of a hydrophilic material wherein the transducer modifies an intensity of the measuring light dependent on an ambient humidity, and a second end for feeding the modified measuring light to the receiver, wherein the receiver compares an intensity of the measuring light with an intensity of the modified measuring light deriving therefrom a corresponding humidity level and dew point temperature.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: January 7, 2020
    Assignee: Institut National de la Recherche Scientifique
    Inventors: Hamid E. Limodehi, François Légaré, Mohamed Chaker
  • HUMIDITY SENSING SYSTEM AND METHOD
    Publication number: 20180238791
    Abstract: A humidity sensing method and system comprising a transmitter, comprising a fiber optic head and a light source comprising a single LED emitting a measuring light, a receiver, and a sensing assembly comprising a plurality of optical fibers each comprising a first end fed the measuring light, a transducer positioned along a length thereof, the transducer comprising a side-polished portion of the optical fiber, the side polished portion coated with a gold layer and a film of a hydrophilic material wherein the transducer modifies an intensity of the measuring light dependent on an ambient humidity, and a second end for feeding the modified measuring light to the receiver, wherein the receiver compares an intensity of the measuring light with an intensity of the modified measuring light deriving therefrom a corresponding humidity level and dew point temperature.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 23, 2018
    Inventors: HAMID E. LIMODEHI, FRANÇOIS LÉGARÉ, MOHAMED CHAKER