Company Filing History:
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1 out of 832,966 Years Active: 2022-2024
Title: Innovations of Guanghui Jia
Introduction
Guanghui Jia is a notable inventor based in Hangzhou, China. He has made significant contributions to the field of underwater acoustic measurement, holding a total of 2 patents. His work focuses on enhancing the calibration and sensitivity measurement of transducers and hydrophones.
Latest Patents
One of Guanghui Jia's latest patents is a "Transducer transfer impedance calibration device based on spatial frequency domain smoothing technology." This 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 significant patent is the "Method of free-field broadband calibration of hydrophone sensitivity based on pink noise." This method is related to free-field underwater acoustic measurement and is primarily used for broadband measurements of hydrophone sensitivity. The method involves transmitting a broadband pink noise signal and performing synchronous processing and FFT on the transmitted current signal and the received voltage signal. By analyzing the direct wave and the reflected wave in the water tank, the transfer function is averaged to eliminate the influence of reverberation, thus obtaining the broadband transfer function between the transmitting transducer and the hydrophone.
Career Highlights
Guanghui Jia has worked at Zhejiang University, where he has contributed to various research projects and innovations in the field of underwater acoustics. His expertise and inventions have made a significant impact on the industry.
Collaborations
Some of his notable coworkers include Yi Chen and Liuqing Yang, who have collaborated with him on various projects and research initiatives.
Conclusion
Guanghui Jia's contributions to underwater acoustic measurement through his innovative patents demonstrate his expertise and commitment to advancing technology in this field. His work continues to influence the development of more accurate and efficient measurement techniques.