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Ultrasonic power measurement system

A technology of power measurement and ultrasonic, which is applied in the direction of measuring devices, measuring ultrasonic/sonic/infrasonic waves, using wave/particle radiation, etc., can solve the problems of high environmental requirements and long time required for the instrument to reach a stable measurement state, and overcome the environmental problems Effects of disturbance and error, improvement of measurement accuracy and measurement speed, and rapid measurement

Active Publication Date: 2016-07-27
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

[0006] The invention provides an ultrasonic power measurement system, which solves the problems that the existing radiation force balance method has high environmental requirements for ultrasonic power measurement and the long time required for the instrument to reach a stable measurement state

Method used

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037]An ultrasonic power measurement system provided by the present invention includes a laser 1, a beam expander 2, an attenuation plate 3, a water tank 4, an imaging lens 6, a CCD camera 7, a computer 8, a laser power supply 10 and an optical platform 11;

[0038] The laser 1, the beam expander 2, the attenuation sheet 3, the water tank 4, the imaging lens 6 and the CCD camera 7 are sequentially fixed on the optical table 11 along the optical path, and the axis of the imaging lens 6 coincides with the axis of the parallel light emitted by the laser 1, CCD camera 7 is placed on the focal point of imaging lens 6, is used to receive diffraction pattern, and this image is transmitted to computer 8 for processing; Described laser power supply 10 provides power for laser device 1;

[0039] During the measurement, the water tank 4 is filled with a transpare...

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Abstract

The invention discloses an ultrasonic power measurement system and belongs to a measurement instrument.The problem that an existing radial force balance method for measuring ultrasonic power has higher environmental requirements and time required for the instrument to reach a stable measurement state is longer is solved.The ultrasonic power measurement system comprises a laser device, a beam expander, an attenuation sheet, a water trough, an imaging lens, a CCD vidicon, a computer, a laser power supply and an optical table, wherein the laser device, the beam expander, the attenuation sheet, the water trough, the imaging lens and the CCD vidicon are sequentially fixed to the optical table along an optical path, the axis of the imaging lens coincides with the axis of parallel light emitted by the laser device 1, the CCD vidicon is placed on a focal point of the imaging lens and used for receiving diffraction patterns and transmitting the diffraction patterns to the computer for processing, and the laser power supply provides power for the laser device.The ultrasonic power measurement system remarkably improves the measurement accuracy and the measurement speed and is suitable for real-time online high-accuracy measurement of output power of medical, industrial and experimental ultrasonic instruments and other ultrasonic instruments.

Description

technical field [0001] The invention belongs to measuring instruments, in particular to an ultrasonic power measuring system, which is suitable for measuring the output power of ultrasonic transducer devices. Background technique [0002] Since the 1930s, ultrasound has been widely used in the medical field for diagnosis and treatment in the human body due to its mechanical, thermal and physical and chemical effects. At the same time, the damage of ultrasound to the human body has always been one of the focal issues concerned by health care institutions and the general public. Some experts pointed out that when ultrasonic waves are concentrated in a certain fixed place and gather for a long time, there will be a thermal effect. When this thermal effect reaches a certain level, it may have adverse effects on human tissues, affecting the substances in cells including chromosomes; theory In fact, high-intensity ultrasonic waves can cause damage to tissues through its high temp...

Claims

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Application Information

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IPC IPC(8): G01H9/00
CPCG01H9/00
Inventor 朱福龙陈炎明何黎平段科潘永军陶加全蔺欣欣
Owner HUAZHONG UNIV OF SCI & TECH
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