Research and Exploration of Metrology Measurement Methods for Medical Ultrasound
Diagnosis and Treatment Equipment
ZHENG Yinfei1, FU Wenxin1, YAO Lei2, CAO Yonggang3
1. College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou Zhejiang 310058, China;
2. Zhejiang Institute of Metrology, Hangzhou Zhejiang 310058, China ; 3. China Jiliang University, Hangzhou Zhejiang 310058, China
Abstract：Due to the real-time, non-invasive nature of ultrasound, ultrasound diagnostic equipment occupies an
extremely important position in the medical field and plays an important role in the diagnosis and treatment of clinical
diseases. With the development of technology, ultrasound diagnostic equipment increases the diagnostic ability and enhances
the effect of ultrasound treatment, and its intensity is also increasing, which increases the risk of using ultrasound
diagnostic equipment; therefore, it is necessary to study, analyze and calibrate the sound field detection and power metering
of various ultrasonic diagnostic equipment to ensure the safety and reliability of ultrasound diagnostic equipment. In this
paper, the key technologies and core components were studied, including standard and high-volume strong hydrophone,
ultrasonic acoustic field distribution detection and calibration device, and non-contact ultrasonic temperature measurement
technology. The diaphragm standard and high sound intensity hydrophone were made of impact-resistant composite materials
and metal materials that had strong impact resistance to form a matching layer, which could meet the requirements of
high sound power detection. The sound field detection device could measure various parameters of ultrasound by using a
single hydrophone after finite element simulation of sound field. The three-dimensional motion mechanism was used to
control the hydrophone to scan in the near-field region of the focused sound field, and the sound field at the focus was
reconstructed for cross-spectral operation. The additional phase problem caused by the upper frequency limit of the dual
hydrophone and the inconsistent performance of the two channels was overcome. A pyroelectric sensor to detect changes in the
sound attenuation coefficient by ultrasonic non-invasive temperature measurement technology used to obtain temperature
changes. Finally, the temperature of pork was measured, and the error was less than 2.5%, which met the requirements of
clinical operation. On the basis of the above technologies and systems, the establishment of a medical ultrasound diagnosis and
treatment equipment measurement and detection system can effectively serve the domestic ultrasound diagnosis and treatment
equipment manufacturing industry and clinical hospitals.
基金资助:国家重点研发计划（ 2 0 1 6 Y F F 0 2 0 1 0 0 0 ；
2018YFC0114900；2018YFF0213000）；中央高校基本科研业务费
专项资金资助项目（2018FZA5016）。
通讯作者:
付文鑫
E-mail: 21815094@zju.edu.cn
引用本文:
郑音飞1，付文鑫1，姚磊2，曹永刚3. 医学超声诊疗设备计量检测方法研究与探索[J]. 中国医疗设备, 2019, 34(11): 22-29.
ZHENG Yinfei1, FU Wenxin1, YAO Lei2, CAO Yonggang3. Research and Exploration of Metrology Measurement Methods for Medical Ultrasound
Diagnosis and Treatment Equipment. China Medical Devices, 2019, 34(11): 22-29.
