Fiber Bragg Grating-Based Sound Sensor
A technology of sound sensor and optical fiber grating, which is applied in the direction of instruments, measuring ultrasonic/sonic/infrasonic waves, measuring devices, etc. It can solve the problems that the system is easily affected by the ambient temperature, the sound monitoring range is small, and the sensitivity is low, so as to facilitate network monitoring , Increase the sound monitoring range, improve the effect of sensitivity
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0024] In order not to introduce electrical signals, improve the sensitivity of the sensor, increase the sound monitoring range, make the sound not affected by the ambient temperature, and facilitate network monitoring, such as figure 1 As shown, the present invention provides an acoustic sensor based on fiber grating sensing, which can meet the above requirements, especially in terms of improving sensitivity and solving the influence of ambient temperature.
[0025] Such as figure 2 As shown, the fiber grating-based acoustic sensor of the embodiment of the present invention includes a sound coll...
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