Vibration source for calibrating positioning type optical fiber vibration host and manufacturing method

Abstract

The invention discloses a vibration source for calibrating a positioning type optical fiber vibration host, which is characterized in that: the vibration source comprises a piezoelectric ceramic; the surface of the piezoelectric ceramic is wound by winding bare fiber; one end of the winding bare fiber is connected to an optical fiber tail processor; the piezoelectric ceramic wound by the winding bare fiber and the tail processor are packaged inside the piezoelectric ceramic package; the piezoelectric package is provided with a driving connector to connect with the piezoelectric ceramic; the other end of the winding bare fiber is led out of the piezoelectric ceramic package to form a vibration signal output terminal; and the driving connector on the piezoelectric ceramic package is connected to a signal emitter. The vibration source for calibrating positioning type optical fiber vibration host has advantages that the vibration source is high in repeating times, the vibration source can be accurately controlled at the piezoelectric ceramic without causing any disturbance to other places; the adjustment accuracy is high, the signals with different frequencies, strengths and waveforms are applied through a oscilloscope and the vibration signals of various frequencies in reality can be simulated; and the quantized performance index data which is high in accuracy can be obtained.

Description

technical field [0001] The invention relates to the field of optical fiber vibration intrusion detection systems, in particular to a vibration source for a positioning type optical fiber vibration host and a manufacturing method thereof. Background technique [0002] Optical fiber vibration intrusion detection system is an alarm system that uses optical fiber vibration sensing technology to detect and indicate the behavior of entering or attempting to enter the protection range. The area where the system can detect intrusion information is divided into hardware defense zone or software defense zone in actual use. The hardware defense area refers to the fortification area divided according to the hardware position of the actual optical fiber sensing unit; the software defense area refers to the fortification area divided by different defense positions in the software. The optical fiber vibration intrusion detection system is mainly composed of optical fiber vibration sensing...

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Problems solved by technology

[0014] During the test, the applicant found that the position of the vibration source and the amplitude of the vibration are not easy to control when using the impact hammer or the falling steel ball for the test, and it is easy to cause disturbance to other places, which affects the accuracy of the test

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