Liuqing Yang

Title: Liuqing Yang: Innovator in Acoustic Measurement Technologies

Introduction

Liuqing Yang is a prominent inventor based in Hangzhou, China. He has made significant contributions to the field of acoustic measurement technologies, holding a total of 2 patents. His work focuses on enhancing the accuracy and efficiency of underwater acoustic measurements.

Latest Patents

Liuqing Yang's latest patents include a "Transducer transfer impedance calibration device based on spatial frequency domain smoothing technology." This innovative device comprises a signal transmitter, a power amplifier, a transducer pair, a measurement amplifier, a signal collector, a measurement processor, and a current sampler. It extracts acoustic channel information through sound field spatial information or measurement methods to design a spatial domain smoothing filter. The device processes the transmitted current signal and the received signal using spatial frequency domain smoothing technology to obtain the transfer impedance of the transducer pair.

Another notable patent is the "Method of free-field broadband calibration of hydrophone sensitivity based on pink noise." This method is primarily used for broadband measurements of hydrophone sensitivity in free-field underwater acoustic measurement. It involves transmitting a broadband pink noise signal and performing synchronous processing and FFT on the transmitted current signal and the received voltage signal. The method averages the transfer function in the frequency domain to eliminate the influence of reverberation, thus obtaining the broadband transfer function between the transmitting transducer and the hydrophone.

Career Highlights

Liuqing Yang has worked at Zhejiang University, where he has contributed to various research projects and innovations in acoustic technologies. His expertise in this field has positioned him as a key figure in advancing underwater acoustic measurement techniques.

Collaborations

Liuqing Yang has collaborated with notable colleagues, including Yi Chen and Xiaofeng Jin. Their combined efforts have led to significant advancements in the field of acoustic measurement.

Conclusion

Liuqing Yang's contributions to acoustic measurement technologies through his innovative patents demonstrate his commitment to advancing this field. His work continues to influence the way underwater acoustic measurements are conducted, showcasing the importance of innovation in scientific research.