Turuvekere R Gururaja

Title: Turuvekere R Gururaja: Innovator in Electrostrictive Transducer Technology

Introduction

Turuvekere R Gururaja is a notable inventor based in North Andover, MA (US). He has made significant contributions to the field of electrostrictive transducers, holding a total of 6 patents. His work focuses on enhancing the performance and sensitivity of medical ultrasound systems.

Latest Patents

Gururaja's latest patents include innovative methods for controlling the sensitivity of electrostrictive transducers. One of his patents describes an apparatus and methods for controlling electrostrictive transducer sensitivity in a pulse-echo medical ultrasound system. This invention involves testing certain characteristics of each transducer element after manufacture and recording the data on a storage medium. The stored data is utilized, along with specific model relations, to monitor operational parameters of the transducer during use. Feedback compensation is applied to maintain the transducer sensitivity substantially constant. The parameters monitored may include temperature, acoustic pressure, input power, and a figure of merit determined from the dielectric constant and coupling coefficient.

Another significant patent is for a hybrid piezoelectric ultrasonic probe. This probe is designed for coupling acoustic signals between the probe and a medium. It features a piezoelectric element with multiple layers, each having a different acoustic impedance. The layers are stacked in progressive order of acoustic impedance, ensuring that the layer closest to the medium has the appropriate impedance. At least one of the piezoelectric layers is made from a piezoelectric composite material. The probe also includes electrode means for electrically coupling the piezoelectric layers to a voltage source, allowing for the application of an oscillation voltage potential to each layer. Additionally, it has control means for managing the polarization of at least one of the piezoelectric layers.

Career Highlights

Gururaja is currently employed at Hewlett-Packard Company, where he continues to innovate in the field of electrostrictive technology. His work has had a profound impact on the development of medical ultrasound systems, enhancing their efficiency and effectiveness.

Collaborations

Throughout his career, Gururaja has collaborated with notable colleagues, including Mir S Seyed-Bolorforosh and Michael Greenstein. These collaborations have contributed to the advancement of technology in his field.

Conclusion

Turuvekere R Gururaja is a distinguished inventor whose work