With the acceleration of China's urbanization, underground pipeline construction is developing rapidly, bringing great convenience to people's life. However, at the same time, pipeline construction and remodeling accidents have become more and more frequent, threatening people's lives and affecting normal life. In this context, the importance of ground pipeline locator is more and more prominent.
Underground pipeline is the lifeline on which the city relies for survival and development, and the increase of its type and quantity also brings corresponding safety risks. Accidents such as telecommunication interruption, gas leakage, and water pipe rupture have occurred repeatedly, bringing great disturbance to people's daily life. Therefore, ground pipeline locator before construction and remodeling to obtain accurate pipeline information is an important prerequisite to avoid accidents.
In practice, the use of pipeline locator is an important condition for accurately completing the detection work. Its working principle is mainly based on the principle of electromagnetic induction. The transmitter generates electromagnetic signals, which are transmitted to the underground cable to be measured through different transmitting connections. The underground cable senses the electromagnetic signal and generates an induced current on the cable, which propagates along the cable to the distance. During this process, the underground cable radiates electromagnetic waves to the ground. When the pipeline locator receiver detects on the ground, it can receive these electromagnetic wave signals on the ground above the cable. According to the changes in the strength of the received signals, we can identify the location, direction and fault conditions of the underground cable.
It is worth mentioning that when the AC current flows through the conductor, it will generate an alternating magnetic field around the conductor, and the magnetic lines of force of this field are all coaxial to the conductor. Based on this principle, we can place an electromagnetic coil into this magnetic field and an induced voltage will be generated at both ends of the coil. When the induction coil is moved, if the direction of the coil is the same as the direction of the magnetic lines of force, the induced voltage at the ends of the coil will be maximum. Conversely, when the direction of the coil is parallel to the direction of the conductor, the induced voltage is the smallest and the receiver signal is the weakest. With this information, we can more accurately determine the location and condition of underground pipelines.
To summarize, underground pipeline locator is an important part to ensure the normal operation of the city. With the accelerated development of urbanization, the importance of underground pipelines becomes more and more prominent. The use of pipeline detectors provides strong technical support for the work of ground pipeline locator. By understanding its working principle and operation method, we can carry out the work of ground pipeline locator more effectively to protect the sustainable development of the city.
