Dynamic efficiency optimization of piezoelectric actuator

Details Dynamic efficiency optimization of piezoelectric actuator Dynamic efficiency optimization of piezoelectric actuator

E - Fixed Constructions

21

B

E21B 47/16 (2006.01) E21B 47/12 (2012.01) H01L 41/09 (2006.01) H03H 9/125 (2006.01)

Patent

CA 2585046

This invention applies to the means whereby capacitance changes due to varying temperature and/or pressure in a piezoelectric transducer used for acoustic telemetry in a drilling environment is dynamically offset by modifying one or more parameters associated with the drive or control circuitry of said transducer. The object of the invention is to closely maintain the transducer in a resonant mode, thereby ensuring optimum energy consumption.

La présente invention concerne les moyens où la capacitance varie en raison de la variation de température et/ou de la pression dans un transducteur piézoélectrique utilisé pour la télémétrie acoustique dans un forage; la capacitance est décalée de manière dynamique en modifiant un ou plusieurs des paramètres associés avec les circuits d'entraînement ou de contrôle dudit transducteur. L'invention vise à maintenir de manière stricte le transducteur en mode de résonnance, assurant de la sorte une consommation d'énergie optimale.

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