A transceiver-integrated optical fiber ultrasonic probe, ultrasonic excitation and detection system

Abstract

The invention discloses a transceiver-integrated optical fiber ultrasonic probe and an ultrasonic excitation and detection system, belonging to the technical field of ultrasonic excitation and detection. Including guide fiber, sensing polymer film, wavelength selective transmission film and excitation polymer film; the sensing polymer film, wavelength selective transmission film and excitation polymer film cover the guide fiber in sequence; the excitation light passes through the transmission Sensitive polymer film and wavelength-selective transmissive film, which are absorbed by the excited polymer film and generate ultrasonic signals; the signal light passes through the sensing polymer film and is reflected by the wavelength-selective transmissive film as a detection signal; the sensing polymer film It is used to change the optical path of the reflection detection signal to realize the phase modulation of the detection signal. In the present invention, a sensing polymer film, a wavelength-selective permeable film and an exciting polymer film are sequentially covered on the near end surface of the guiding fiber to form an integral structure, so that the fiber optic ultrasonic probe can simultaneously realize ultrasonic excitation and ultrasonic detection.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic excitation and detection, and more specifically relates to a transceiver-integrated optical fiber ultrasonic probe and an ultrasonic excitation and detection system. Background technique [0002] Ultrasound is a sound wave with a frequency greater than 20kHz. Due to its short wavelength and strong penetrability, it has broad application prospects in high-resolution medical imaging, non-destructive testing and other fields. An ultrasonic pulse is generated by the ultrasonic probe, and the ultrasonic signal reflected by the object to be measured is measured, so that imaging or structural analysis of the object to be measured can be realized. [0003] Fiber-optic ultrasound probes have received extensive attention due to their anti-electromagnetic interference, small size, and high flexibility. At present, fiber-optic ultrasonic probes are mainly divided into two categories: the first type is fib...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a transceiver-integrated optical fiber ultrasonic probe, ultrasonic excitation and detection system, thereby solving the technical problem that the existing optical fiber ultrasonic probe cannot realize ultrasonic excitation and ultrasonic detection at the same time

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