The integrated optical fiber acousto-optic modulator is a product that integrates acousto-optic modulator and acousto-optic driver. Compared with split products, it has a more compact package, smaller volume, and stable performance, which is more convenient for application in optical systems.
From the schematic diagram we can see that the distributed fiber optic vibration data monitoring system, using a balanced photodetector for coherent detection, and then need to IQ demodulation of the collected data, demodulation followed by phase unwinding to obtain the amplitude root phase data information.
Introduces the configuration of the pulsed laser for DTS temperature sensing, including how to set the ACC and APC modes, the trigger method and the pulse width parameters.
The fiber optic perimeter intrusion monitoring system realizes fiber optic vibration sensing and monitoring based on the basic principle of Rayleigh scattering, combined with φ-OTDR (Phase Sensitive Optical Time Domain Reflection) technology and signal analysis and processing algorithms.
The PZT was used to test the Distributed Fiber Optic Acoustic Sensing System DAS at a location of 50KM, using a repetition frequency of 2000Hz, capable of testing signals at 980Hz.
Introduction of data acquisition card for distributed fiber optic vibration monitoring system, 100M sampling rate, PCIe interface with demodulation algorithm.
distributed fiber optic sensing systems have been widely used in various fields. Distributed fiber optic sensing system uses optical fiber as a sensing element, thus realizing distributed measurement of physical quantities.
How long can a distributed fiber optic vibration sensing system monitor? In the laboratory it can support 80km, in the application site to consider the light decay and other reasons, the maximum available 60km.
The type of fiber used for distributed fiber optic vibration sensing is single-mode G652, which is a very common fiber, all in our communication fiber optic cable, and is not expensive.
With our in-house developed DTS, there’s no need for separate optical paths anymore! The GY-DTS-M integrated module helps manufacturers and integrators significantly shorten development cycles.