MOEMS vector hydrophone
A technology of vector hydrophones and optical fiber collimators, applied in instruments, measuring devices, and measuring ultrasonic/sonic/infrasonic waves, etc., can solve problems such as low signal-to-noise ratio of hydrophones, susceptibility to electromagnetic interference, and signal interference. Achieve the effects of small signal attenuation, small overall size, and low energy consumption
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[0016] A MOEMS vector hydrophone, including: optical fiber 1, optical fiber collimator 2, base 3, silicon-based frame 4, cantilever beam 5 and miniature cylinder 6; figure 1 As shown, the silicon-based frame 4 is a square frame structure, with a cantilever beam 5 erected in the center; the cantilever beam 5 is a cross-shaped structure, and a platform 51 is provided at the midpoint of the four sides of the "cross" and the intersection of the "cross". The platform 51 is a square , The back of the platform 51 is plated with a reflective film 7 with a reflectivity of not less than 95%; the base 3 has a square structure, such as figure 2 As shown, a mounting slot 31 with a size matching the outer contour of the silicon-based frame 4 is opened in the center. The center position of the platform 51 on the four sides of the "cross" of the cantilever beam 5 corresponds to the mounting hole 32 at the corresponding position in the mounting slot 31. The base frame 4 is installed in the insta...
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