图1 光纤超声波传感器（a）传感器结构图；（b）传感器封装实物图；（c

Figure 1 Optical fiber ultrasonic sensor (a) sensor structure diagram; (b) sensor package physical diagram; (c) three tapered optical fiber micrographs with diameters of 29.787 μm, 21.811 μm and 12.498 μm;

Fig. 1 structure diagram of optical fiber ultrasonic sensor (a)（ b) The physical picture of sensor package（ c) The diameters of the three are 29.787 μ m、21.811 μ 498 m and 12 μ The micrograph of the tapered optical fiber with a diameter of 1;<br>

Fig. 1 sensor structure diagram of optical fiber ultrasonic sensor (a); (b) Physical drawing of sensor package; (c) micrographs of three tapered fibers with diameters of 29.787 μm, 21.811 μm and 12.498 μm;