Method and device for biological tissue photoacoustic tomography
A technology of biological tissue and photoacoustic tomography, which is applied in echo tomography, acoustic wave diagnosis, infrasonic wave diagnosis, etc. It can solve the complex reflection, transmission and absorption of the laser sound field, it is difficult to obtain the exact photoacoustic signal of each point, and the amount of calculation Large and other problems, to achieve the effect of good applicability, improved signal-to-noise ratio, and simple algorithm
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[0034] The specific structure of the present invention is as figure 1 shown by figure 1 It can be seen that the photoacoustic tomography device of the present invention is mainly composed of a laser 1, an ultrasonic generating component 2, an acoustic signal measuring component 3, a signal amplifier 4, a fast Fourier transform module 5, a data acquisition card 6, a computer 7, and a three-dimensional electric rotating platform 12 , the ultrasonic generation assembly 2 is relatively installed with the acoustic signal measurement assembly 3, and is connected through the ultrasonic signal, the acoustic signal measurement assembly 3, the signal amplifier 4, the Fourier transform module 5, the data acquisition card 6, the computer 7, etc. are electrically connected in turn; Component 2 is composed of a function generator 2-1, a power amplifier 2-2, an ultrasonic transducer 2-3 and an ultrasonic lens 2-4 connected in sequence, and the ultrasonic lens 2-4 is connected with the ultras...
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