Output measuring system for medical ultrasonic equipment

A technology of ultrasonic equipment and measurement system, which is applied in the direction of measuring ultrasonic/sonic/infrasonic waves, measuring devices, instruments, etc., and can solve problems such as backward technology, incapable of precise orientation and positioning, and outdated functions

Inactive Publication Date: 2003-11-05
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

Although its measurement parameters have p-, I spta etc., but because the arc-shaped radiation end face cannot be scanned close to the hydrophone end face (requiring that the center of the arc coincides with the center of the scanning sector), the beam cannot be arbitrarily selected for measurement
Moreover, its mechanical structure has only 7 degrees of freedom to adjust, which cannot meet the requirements of 11 degrees of freedom stipulated in IEC61102-1991.
The

Method used

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  • Output measuring system for medical ultrasonic equipment
  • Output measuring system for medical ultrasonic equipment
  • Output measuring system for medical ultrasonic equipment

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Embodiment Construction

[0028] Such as figure 1 and figure 2 As shown, the present invention includes: the measured probe with 11 degrees of freedom and the two-way coordinate precision orientation and positioning system 1 of the hydrophone, the three-dimensional sound field scanning stepper motor drive and control system 2, the storage oscilloscope-computer system 3, the measurement The hydrophone and the reference hydrophone 4, the auxiliary equipment 5, and the mechanical frame 6 are connected as follows: the measuring hydrophone and the reference hydrophone 4 are fixed on the measured probe with 11 degrees of freedom and the measuring water through a fixture. On the two-way coordinate precision orientation and positioning system 1 of the earphone, the cables of the measuring hydrophone and the reference hydrophone 4 are directly connected to the signal input end of the storage oscilloscope-computer system 3, and the three-dimensional sound field scanning stepper motor drive and control system 2 ...

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Abstract

The ultrasonic output measuring system as one medical measurement instrument has measuring hydrophone and reference hydrophone fixed on the precise orientating and positioning system with 11 freedomsfor measured probe and measuring hydrophone; storage oscilloscope-computer system with signal input connected to the measuring hydrophone and the reference hydrophone; 3D ultrasonic field step motor driving and controlling system connected to the signal output of the storage oscilloscope-computer system via RS232 interface and to the precise orientating and positioning system via drive cable and signal cable; auxiliary equipment and mechanical framework for the precise orientating and positioning system to be set on. The present invention can measure all the index parameters of ultrasonic diagnosis instrument in scanning state.

Description

technical field [0001] The invention relates to an acoustic output measurement system of ultrasonic equipment, in particular to an acoustic output measurement system of medical ultrasonic equipment, which belongs to the field of medical measuring instruments. Background technique [0002] So far, GB16846-1997 (idt.IEC61157-1992) "Medical Ultrasonic Diagnostic Equipment Acoustic Output Announcement Requirements" stipulates that the ultrasonic diagnostic equipment acoustic output announcement parameters are four basic indicators: maximum negative sound pressure p-, spatial peak time peak value derived Sound intensity I spta , output beam sound intensity I ob and the maximum time-averaged sound power P max , in addition to a series of other auxiliary parameters, about 10 items. After the novelty check station of the Ministry of Education of the People's Republic of China, it is found after searching that the documents most relevant to the present invention are: Roy C.Preston...

Claims

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Application Information

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IPC IPC(8): G01H17/00
Inventor 寿文德夏荣民钱德初邹桂根毕浩然
Owner SHANGHAI JIAO TONG UNIV
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