Patents by Inventor Vladimir D. Bogdanov

Vladimir D. Bogdanov 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: 11293790
    Abstract: An industrial process field device includes a piezoelectric transducer, a sensor circuit, a test circuit, a controller and a communications circuit. The sensor circuit generates a sensor signal indicating a process variable based on a voltage across the piezoelectric transducer. The test circuit is configured to apply a voltage pulse having a pulse voltage to the piezoelectric transducer that induces a response signal, and capture peak positive and negative voltages of the response signal. The controller calculates a current condition value of the piezoelectric transducer based on the peak positive voltage, the peak negative voltage and the pulse voltage, and generates a diagnostic test result based on a comparison of the current condition value to a reference condition value corresponding to a properly operating piezoelectric transducer. The communications circuit communicates the process variable and the diagnostic test result to an external control unit over a process control loop.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 5, 2022
    Assignee: ROSEMOUNT INC.
    Inventor: Vladimir D. Bogdanov
  • Publication number: 20210231472
    Abstract: An industrial process field device includes a piezoelectric transducer, a sensor circuit, a test circuit, a controller and a communications circuit. The sensor circuit generates a sensor signal indicating a process variable based on a voltage across the piezoelectric transducer. The test circuit is configured to apply a voltage pulse having a pulse voltage to the piezoelectric transducer that induces a response signal, and capture peak positive and negative voltages of the response signal. The controller calculates a current condition value of the piezoelectric transducer based on the peak positive voltage, the peak negative voltage and the pulse voltage, and generates a diagnostic test result based on a comparison of the current condition value to a reference condition value corresponding to a properly operating piezoelectric transducer. The communications circuit communicates the process variable and the diagnostic test result to an external control unit over a process control loop.
    Type: Application
    Filed: September 25, 2019
    Publication date: July 29, 2021
    Inventor: Vladimir D. Bogdanov
  • Patent number: 10969258
    Abstract: A vortex flowmeter includes a flow tube configured to receive a flow of process fluid in a first direction. A bluff body is disposed within the flow tube between a first end and a second end. The bluff body is configured to generate vortices in the flow of process fluid. A plurality of sensors are disposed within the bluff body configured to detect deformations within the bluff body resulting from the vortices acting on the bluff body.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 6, 2021
    Assignee: Micro Motion Inc.
    Inventor: Vladimir D. Bogdanov
  • Publication number: 20200072647
    Abstract: A vortex flowmeter includes a flow tube configured to receive a flow of process fluid in a first direction. A bluff body is disposed within the flow tube between a first end and a second end. The bluff body is configured to generate vortices in the flow of process fluid. A plurality of sensors are disposed within the bluff body configured to detect deformations within the bluff body resulting from the vortices acting on the bluff body.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 5, 2020
    Inventor: Vladimir D. Bogdanov