DY800 series cable survey instrument according to photoelastic effect, the method using optical interference, coherent demodulation of the light by the fiber optic cable tap vibration signals into visual signal and audio signal, to accurately locate and identify the laying of the pipe (manhole), tunnels and poles for overhead cable environment and other targets. When using the cable survey instrument, engineers only need to gently tap the cable supply cable survey instrument, you can easily recognize the need to find the target cable. DY800 Series Series instrument cable completely replace the previous census cutting, bending, refrigeration and other cable identification method is not new damage detection techniques of various fiber optic cable survey instrument, and its powerful applications can greatly reduce the cable repair and maintenance time, reduce the cost of construction and management of a variety of fiber optic cable survey instrument supply, greatly improving efficiency. Coherent demodulation of the light through the fiber optic cable to the vibration signal into a visual signal and an audio signal, to accurately locate and identify the pipeline laid on (manhole), tunnels and other environmental objective pole aerial cable. When using the cable survey instrument, engineers only need to gently tap the cable, you can easily recognize the need to find the target cable. Price survey instrument cable, fiber optic cable survey instrument, provided by the Tianjin Xin Xin Hao Yuan Hao Yuan Science and Technology Development Co., Ltd. Tianjin Xin Hao Yuan Science and Technology Development Co., Ltd. (tjaic.gov.cn/shownews.asp?id=5921) strong, credible, in Tianjin's special instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Xin Hao Yuan innovative ideas will lead into the brilliant and you work for a better future!