Transmitting-receiving integrated optical fiber ultrasonic probe and ultrasonic excitation and detection system

Abstract

The invention discloses a transmitting-receiving integrated optical fiber ultrasonic probe and an ultrasonic excitation and detection system, and belongs to the technical field of ultrasonic excitation and detection. The transmitting-receiving integrated optical fiber ultrasonic probe comprises a guide optical fiber, a sensing polymer film, a wavelength selective transmission film and an excitation polymer film, wherein the sensing polymer film, the wavelength selective transmission film and the excitation polymer film sequentially cover the guide optical fiber; exciting light penetrates through the sensing polymer film and the wavelength selective transmission film, is absorbed by the excitation polymer film and generates an ultrasonic signal; the signal light penetrates through the sensing polymer film and is reflected by the wavelength selective transmission film to serve as a detection signal; and the sensing polymer film is used for changing the optical path of the reflected detection signal to realize phase modulation of the detection signal. The sensing polymer film, the wavelength selective transmission film and the excitation polymer film sequentially cover the near end surface of the guide optical fiber to form an integral structure, so that the optical fiber ultrasonic probe can realize ultrasonic excitation and ultrasonic detection at the same time.

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...

AI Technical Summary

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

Images