Patents by Inventor Zheng Dou

Zheng Dou 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).

  • Method of sensing aerosol characteristic parameter using dual-wavelength scattered signal and application thereof
    Patent number: 10001438
    Abstract: The present invention relates to a method of sensing aerosol characteristic parameters using dual-wavelength light scattered signals and the application thereof, and belongs to the technical field of fire warning. The method procedures include measuring the scattered light power of two different wavelengths, calculating the surface area concentration and the volume concentration of aerosol, and obtaining the Sauter mean diameter of the aerosol the surface area concentration, the volume concentration and the aerosol Sauter mean diameter are compared with corresponding thresholds, and then corresponding fire alarm signals are emitted.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: June 19, 2018
    Assignee: Huazhong University of Science and Technology
    Inventors: Shu Wang, Tian Deng, Zheng Dou
  • METHOD OF SENSING AEROSOL CHARACTERISTIC PARAMETER USING DUAL-WAVELENGTH SCATTERED SIGNAL AND APPLICATION THEREOF
    Publication number: 20170284934
    Abstract: The present invention relates to a method of sensing aerosol characteristic parameters using dual-wavelength light scattered signals and the application thereof, and belongs to the technical field of fire warning. The method procedures include measuring the scattered light power of two different wavelengths, calculating the surface area concentration and the volume concentration of aerosol, and obtaining the Sauter mean diameter of the aerosol the surface area concentration, the volume concentration and the aerosol Sauter mean diameter are compared with corresponding thresholds, and then corresponding fire alarm signals are emitted.
    Type: Application
    Filed: June 23, 2015
    Publication date: October 5, 2017
    Inventors: Shu Wang, Tian Deng, Zheng Dou