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胶带输送机已成为矿井的主要运输工具。用于长距离、高速度、大运量系统的胶带费用非常昂贵,因而防止纵向撕裂的保护装置极为重要。 B.F.Goodrich研制一种用无线电频率信号检测的SentreⅡ型胶带撕裂检测装置。该装置的天线群横放在胶带底部的编织层和覆盖层之间。胶带下面安装发送探头,它与胶带不接触,连续发送无线电频率的信号。安装在胶带下面的接收探头横放在发送探头的对面,当一
Belt conveyor has become the main means of transport mines. Tapes used for long-distance, high-speed, high-volume systems are very expensive and therefore protection against longitudinal tearing is of paramount importance. B.F.Goodrich develops a Sentre type II tape tearing test device that detects radio frequency signals. The antennae of the device are placed transversely between the braid and cover at the bottom of the tape. The transmission probe is installed below the tape, it does not touch the tape, and continuously transmits radio frequency signals. The receiving probe installed under the tape is placed horizontally across from the transmitting probe