Patents by Inventor Meng Fun

Meng Fun 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).

  • Static and dynamic calibration of quartz pressure transducers
    Patent number: 6823711
    Abstract: A system and method for dynamically calibrating signals from a quartz pressure sensor to correct for temperature transients. A series of differences of time spaced temperature readings is stored in a tapped delay line and coupled to a transfer function. The transfer function uses the temperature difference values to correct pressure frequency readings for temperature transient errors. In one form, one transfer function uses temperature and pressure readings to statically calibrate pressure readings and a second transfer function uses temperature differences to provide a temperature transient correction which is added to the statically calibrated pressure value.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: November 30, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dingding Chen, Roger L. Schultz, Craig Zitterich, Martin T. Hagan, Meng Fun
  • STATIC AND DYNAMIC CALIBRATION OF QUARTZ PRESSURE TRANSDUCERS
    Publication number: 20040221655
    Abstract: A system and method for dynamically calibrating signals from a quartz pressure sensor to correct for temperature transients. A series of differences of time spaced temperature readings is stored in a tapped delay line and coupled to a transfer function. The transfer function uses the temperature difference values to correct pressure frequency readings for temperature transient errors. In one form, one transfer function uses temperature and pressure readings to statically calibrate pressure readings and a second transfer function uses temperature differences to provide a temperature transient correction which is added to the statically calibrated pressure value.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 11, 2004
    Inventors: Dingding Chen, Roger L. Schultz, Craig Zitterich, Martin T. Hagen, Meng Fun