High-precision three-dimensional sound field measurement system for medical ultrasonic equipment

Abstract

The invention discloses a high-precision three-dimensional sound field measurement system for medical ultrasonic equipment. The high-precision three-dimensional sound field measurement system comprises a hydrophone, an ultrasonic probe, a movable frame, a control module, a data acquisition device, a data processing module, a first motion driving module, a second motion driving module, an analog simulation system and a display device; the movable frame is detachably connected with a measurement tank, a three-axis motion positioning system, an ultrasonic probe fixture and a laser acquisition device fixture, the three-axis motion positioning system is detachably connected with a hydrophone fixture, the hydrophone fixture is detachably connected with a first laser, the ultrasonic probe fixtureis detachably connected with a second laser, and the laser acquisition device fixture is detachably connected with a laser acquisition device. The high-precision three-dimensional sound field measurement system effectively ensures the collimation of an acoustic axis of the ultrasonic probe and the axis alignment of the ultrasonic probe and the hydrophone, and can timely find an error of measurement data and check and correct the measurement system, thereby achieving quick and accurate measurement on the sound field of the ultrasonic equipment.

Description

technical field [0001] The invention relates to the field of acoustic measurement, in particular to a high-precision three-dimensional sound field measurement system for medical ultrasonic equipment. Background technique [0002] With the development of the economy and the improvement of living standards, the public's awareness of health is gradually increasing. Some medical ultrasound equipment, such as ultrasonic diagnostic equipment, are popular among doctors and patients due to their high precision, good sensitivity, fast imaging speed, and multiple and multi-directional detection. Ultrasound medical diagnosis and treatment instruments are widely used in major hospitals, and the market for ultrasonic medical equipment is also growing in China. With the development of the medical device industry, medical ultrasonic equipment emerges in an endless stream, such as ultrasonic physiotherapy equipment, ultrasonic therapy equipment, ultrasonic diagnostic equipment, etc. Howev...

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Problems solved by technology

However, there are still many problems with this kind of equipment. For example, it is easily affected by the environment in an open environment, such as temperature, humidity, and air flow. Transient peak sound pressure and other data

There are also many studies on the measurement of ultrasonic sound field by hydrophone method at home and abroad. Usually, each device is installed and adjusted manually. However, due to factors such as installation error and manual adjustment error, the measurement accuracy is poor, the measurement efficiency is low, and It is difficult to detect measurement errors caused by problems such as device damage in time, and it is impossible to accurately measure the sound field of the ultrasonic probe

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