Cable survey instrument using a new type of remote vibration monitoring and recognition technology to monitor various points along the cable vibration, is a new non-destructive testing techniques. Using this test instrument, line maintenance personnel only need to be tested to the test end fiber optic cable access survey instrument principle, then tap the cable at the far end, the test instrument capable of audio and video signals through two ways to quickly and accurately find fiber optic cable census target device, can greatly improve efficiency, reduce the intensity of work and maintenance costs. Supply cable survey instrument in the face of these difficulties, the construction workers are not suppliers of cable census, helpless common construction methods are: from a known place to start one by one pull, bend the cable by OTDR coupled approach, using OTDR plus quick-frozen liquid way radio detection methods, optical fiber identifier lookup, find red light. However, despite the obvious effect of these methods, but there is still relatively large defects caused these difficulties still exist. Analysis of these defects: 1) one by one starting from a known place to pull (it takes a lot of time to find, bundled office can not be separated, limited precision) 2) coupled with OTDR cable bending mode (for cable damage) 3) OTDR plus mode (operation more difficult, potentially toxic) quick-frozen liquid 4) RF detection methods (removal of part of buried fiber optic cable to strengthen the core, can not be detected) 5) Optical Fiber Identifier (required stripping the cable, there is a certain influence on the transmission line ; if not stripping, only to find the ends of pigtail) 6) Red light (undetectable routing, test distance is shorter) cable survey instrument price | cable survey instrument | provided by 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!