Patents by Inventor Alf Brodin

Alf Brodin 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, capacitance meter, computer program and computer program product for improved capacitance measurement
    Patent number: 8917102
    Abstract: A method for measuring a capacitance using a capacitance meter. The capacitance meter includes an AC power source with a controllable frequency which is fed to a capacitor to measure its capacitance. A first measurement of the capacitance is performed by the capacitance meter using a first frequency. When the first measurement of the capacitance indicates the capacitance is below a threshold capacitance a lower capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a second frequency. When the first measurement of the capacitance indicates the capacitance is above a threshold capacitance, a higher capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a third frequency, the third frequency being lower than the second frequency.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: December 23, 2014
    Assignee: ABB Technology AG
    Inventors: Alf Brodin, Jon Lissmats, Jerry Svedlund, Hans Olof Fröjd
  • METHOD, CAPACITANCE METER, COMPUTER PROGRAM AND COMPUTER PROGRAM PRODUCT FOR IMPROVED CAPACITANCE MEASUREMENT
    Publication number: 20110101999
    Abstract: A method for measuring a capacitance using a capacitance meter. The capacitance meter includes an AC power source with a controllable frequency which is fed to a capacitor to measure its capacitance. A first measurement of the capacitance is performed by the capacitance meter using a first frequency. When the first measurement of the capacitance indicates the capacitance is below a threshold capacitance a lower capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a second frequency. When the first measurement of the capacitance indicates the capacitance is above a threshold capacitance, a higher capacitance measurement is performed in the capacitance meter, using a second measurement of the capacitance using a third frequency, the third frequency being lower than the second frequency.
    Type: Application
    Filed: September 17, 2010
    Publication date: May 5, 2011
    Applicant: ABB TECHNOLOGY AG
    Inventors: Alf Brodin, Jon Lissmats, Jerry Svedlund, Hans Olof Fröjd