Underground pipeline detector receiving detection method

2022/06/09

Author: Noyafa–Cable Locator Suppliers

Detecting underground pipelines Underground pipeline detectors receive detection methods Detecting underground pipelines The underground pipeline detectors receivers are used to locate the target pipeline, determine the depth and measure the current in the target pipeline. When the transmitter's signal is successfully applied to the target pipeline, the receiver can be used to detect the position, direction and depth of the target pipeline. Location and burial depth are the most important information for underground pipelines. Therefore, pipeline positioning and depth determination are the most important links in underground pipeline detection work.

1. When the receiver for pipeline positioning detects the position of the target pipeline, it is necessary to pay attention to the factors that may interfere with the positioning accuracy at any time, so as to prevent the transmitter signal from being coupled to the adjacent pipeline, which may cause deviations in the detection results. (1) Preparations: 1) Check the power supply voltage: Turn on the receiver and check the battery voltage. When the battery is insufficient, it needs to be fully charged before use. 2) Frequency selection: Press the frequency key to set the receiver frequency to the desired frequency.

If active source mode is used, the frequency of the receiver should be the same as that of the transmitter. 3) Sensitivity setting: Adjust the up key or down key to increase or decrease the receiver gain so that the bar graph reading is at 60-80% of the entire range. 4) Working mode selection: Press the mode key to select the appropriate working mode as required.

The underground pipeline detector receiver provides four detection modes: peak mode, broad peak mode, broad peak arrow mode and valley mode. (2) Peak value (maximum value) method The peak value method response mode adopts a single horizontal antenna (broad peak) or a double horizontal antenna to receive the horizontal component of the target pipeline signal, and the receiver obtains the maximum response directly above the target pipeline. The single-horizontal antenna broad-peak mode is used to locate deep pipelines, and the detection signal sensitivity is the highest.

When the receiver is directly above the pipeline to be detected, the signal strength is the largest, the response range is wide, and the positioning accuracy is lower than other methods. The double-horizontal antenna peak method has a steeper peak response than the single-horizontal antenna broad-peak mode, the measurement position is relatively accurate, and the signal strength is weaker. Signal strength peaks when the receiver is directly above the pipeline being positioned.

Underground pipeline detector receives detection method to detect underground pipeline Shenzhen Noyafa Electronic Technology Co., Ltd.

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