Patents Assigned to PerkinElmer Instruments
  • Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system and method
    Patent number: 6347288
    Abstract: An automatic pole-zero (APZ) adjustment circuit for an ionizing radiation spectroscopy system. An output of a preamplifier is sampled to identify the decay time constant of the preamplifier output. A correction based upon the identified decay time constant is generated by a correction signal generator and applied through either an analog pole-zero adjustment network or a programmable digital shaping filter to accomplish pole-zero correction.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: February 12, 2002
    Assignee: PerkinElmer Instruments
    Inventors: Rex C. Trammell, Russell D. Bingham, Dale A. Gedcke