Apparatus and method for suppressing resonance in an electromanometry system
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United States of America Patent
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Jun 22, 1982
Issued Date -
N/A
app pub date -
Mar 11, 1980
filing date -
Aug 1, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A novel apparatus and method for suppressing unwanted resonance in an electromanometry system. The apparatus includes a compliant air cavity connected through a variable impedance device which is coupled in parallel to the liquid-filled catheter of the electromanometry system. By varying the hydraulic impedance through which the compliant air cavity is coupled to the system, precise impedance matching capability is provided over a wide range of hydraulic impedance values, thereby permitting suppression of unwanted resonance and improved frequency response of recorded waveforms in a wide variety of catheter-transducer systems.
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