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Hermann Sewerin GmbH
Catalog excerpts
Technologies for leak detection. Acoustic location of plastic pipes
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Acoustically locating plastic pipes The principle Plastic pipes cannot be located by conventional electromagnetic means because they are not electro-conductive. ground microphone. In the same way as water leaks are detected by acoustic means, the pipeline is located where the intensity is greatest. This method can also be used to locate fibre cement pipes and metal pipes. The acoustic method of locating pipes applies a different principle: pipes transmit mechanical vibrations better than the surrounding ground. When the pipe is caused to vibrate appropriately, these vibrations spread along...
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Acoustic pipeline location Locating pipes with the ground microphone Once the pipeline has been caused to vibrate by the Knocker or Stopper, the location is pinpointed using the ground microphone. This involves systematically testing the ground surface at short intervals. The AQUAPHON® A 100 receiver displays an accurate visual and acoustic comparison of the noise intensities. Is the noise getting louder or softer? The volume increases as you get closer to the vibrating pipeline. The signal is loudest directly above the pipe, thereafter the intensity starts to decrease again. The visual...
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Microphones Ground microphone BO-4 1 is ideal for fixed surfaces. The solid metal soundproofing with separate acoustic centre can be optimally adjusted to the unevenness of the ground thanks to its freedom of movement. Ground microphone 3P-4 2 is used for non-fixed surfaces. A spike can be screwed on for soft ground. The three feet provide stable contact at all times. Features of the AQUAPHON ® A 100 · Automatic microphone recognition, therefore various frequency settings · signal processor Digital · optimisation function Filter · function Slider · Memory function · illuminated display...
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