Patents by Inventor Changua Qiu

Changua Qiu 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).

  • Patent number: 8552752
    Abstract: According to a first aspect of the invention there is provided apparatus arranged to determine an interface between two components that includes a reference electrode arranged to be connected to a constant voltage supply or ground; a measurement electrode, and a field generating device arranged to establish an electric field in at least one of the components; wherein the field generating device is configured to establish the electric field across the measurement electrode, and the apparatus is configured to measure a potential difference between the measurement electrode and the reference electrode, the potential difference between the measurement electrode and the reference electrode being indicative of the interface between the components.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: October 8, 2013
    Assignee: Industrial Tomography Systems PLC
    Inventor: Changua Qiu