The JRC 'Handy Search' (NJJ-95B)
More and more requests for quality assurance inspection on concrete buildings have been made in recent years. When a concrete building is repaired, rebuilt, or maintained, there is the potential problem of accidentally cutting a reinforcing steel bar, electrical conduit and wiring, gas pipes, or plumbing. To perform quality assurance inspection and avoid such an accident, "Handy Search" has been developed as a nondestructive search device that can sense deep in concrete buildings. NOTE: When using this instrument when rolling forward the image and targets shown on the dotted line on the screen represents the Back of the probe. When being rolled backwards the dotted line represents the front of the probe..
Principle of Handy Search This device radiates electromagnetic waves through a concrete surface and receives reflected signals from objects such as reinforcing steel bars, cavities, or other objects that have different electrical characteristics from concrete. Object location and depth are then displayed and recorded as image data.
| Compact and weight savingThe integration of the main-body display with an antenna section makes the device compact. It weighs only 1.1 kg which enables you to operate it with one hand. | | Cable-less printingImplementation of the IrDA function eliminates cable connection and enables the dedicated monochrome printer (optional) to print out data on the spot. |
| Search of both metallic and nonmetallic objectsThe radar system makes it possible to search for nonmetallic items, such as vinyl chloride pipes and cavities, as well as metallic objects, such as reinforcing steel bars. (Only skillful operators are allowed to analyze the image data of non-metallic objects.) | | Real-time surface wave processingThe NJJ-95B quickly performs search operation since it can eliminate surface waves in real time. In addition to fixed surface waves, the NJJ-95B enables the setting of surface waves with data being searched, offering simple operation and high-accuracy search capability. |
| Data maintenance and replayA single search operation enables 15 meters worth of data to be saved and replayed. | | Reading/recording of the analysis cursor positionAfter the search operation, the locations and depths of reinforcing steel bars and the likes can be read and recorded by the XY cursor. (Up to 7 points)
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| Depth sensing capability of up to 30 cm in deep modeThe NJJ-95B can sense the depth of up to 30 cm | | 512MB CF memory cardThe capacity of attached CF memory card is 512MB. The memory card can contain about 200 data items of 15 m search distances. |
Shallow area analysis in shallow modeThe NJJ-95B zooms in the shallow area on the search screen and sets the resolution of covering depth to about 1 mm.
Concrete anchoring / Coring / Electrical facility construction / Air conditioning facility construction / Gas construction / Water supply works / Concrete building repair / Concrete building diagnosis / Concrete bridge completion test, etc.
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DC31-NJJ-95B_English_Standard.pdf - on 22 Sep 2008 18:02 by Graeme Murphy (version 1)
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