With the maturity of optical fiber communication technology, optical fiber sensing technology has developed by leaps and bounds in recent ten years.
As an important part of optical fiber sensor, the measurement based on interference technology has received great attention. The measurement accuracy of optical path difference based on optical wavelength is incomparable with other measurement methods. The ring interferometric fiber optic sensor has been successfully applied to fiber optic gyroscopes because of its high sensitivity.
Turn left | turn right
Product coefficient
Brand: Sanan detection method: vibration detection.
Length of defense zone: the length is adjustable, and the recommended length of a single defense zone is 50-200m.
Sensitivity: adjustable
Vibration frequency detection service: 1HZ- 100HZ.
Monitoring range of accelerated vibration: 0.00 1g- 100000g.
Working environment temperature/humidity: -200C-700C/0-900C Maximum tension of vibrating optical cable:1000 n n.
Product principle
Vibration optical fiber sensor is laid on the top of wrought iron net or fence, and consists of vibration sensing optical cable and vibration optical fiber junction box, which can be regarded as alarm sensor.
It can transmit the tiny mechanical vibration in the protected area (that is, the tiny vibration brought by intruders) to F3 detector for signal acquisition, analysis and processing.
Because of its passive characteristics, it can be widely used in various flammable and explosive places and large irregular perimeters.
The junction box is used to protect the terminal interface of vibrating optical cable and realize optical signal conversion to ensure the normal operation of equipment in various harsh natural environments.
Product advantage
●? Strong anti-interference: the vibration sensing optical cable adopts passive detection principle, which can eliminate the interference of strong external electric field and magnetic field, effectively avoid the damage of lightning to equipment, and the system has high reliability.
●? High sensitivity: the detection sensitivity of the main engine can be adjusted in multiple stages to adapt to various complex environments. ?
●? Convenient construction: very convenient installation and disassembly, plug and play. Effectively reduce the installation cost.
Product characteristics
●? High stability: the optical cable has low loss and high stability during transmission. What is the maximum detection distance of each sector? 500 meters.
●? Passive detection: Vibration sensing optical cable is a passive detector, which is non-conductive and can effectively avoid lightning strike, and is suitable for flammable and explosive places.
●? Layout: Vibrating optical cable can be directly laid on various iron nets to prevent climbing.
●? Output signal: output standard switch signal, which can be connected to the anti-theft alarm controller.
●? Multi-channel acquisition: The dual-channel data acquisition unit can acquire the defense zones of two different media.