Reinforcement position detectorProduct Usage
The steel bar position detector uses electromagnetic induction method to detect the position, protective layer thickness, and diameter of steel bars in concrete structures or components, or to detect the quantity, direction, and distribution of steel bars; It can also detect magnetic and conductive materials in non-magnetic and non-conductive media, such as cables and plumbing pipes inside walls.
The steel bar position detector is a portable non-destructive testing instrument that can be used to detect the construction quality of reinforced concrete structures. It can measure the position of steel bars on the surface of concrete, detect the thickness of the steel bar protective layer and the diameter of the steel bars; In addition, the position of magnetic and conductive materials inside concrete structures, such as cables and plumbing pipes inside walls, can also be detected. Pre construction detection can effectively avoid damage to these facilities during construction and reduce the occurrence of accidents.
Environmental requirements for steel bar position detector products:
★ Electromagnetic interference: No strong alternating electromagnetic field
★ The air does not contain corrosive gases
There should be no significant vibration or impact
★ Avoid direct sunlight on the LCD screen
　　Reinforcement position detectorPrecautions to be taken during testing:
1. Avoid the mutual influence between steel bars. Select the detection area, reset the probe away from the ferromagnetic object before testing, use the positioning function to find the direction and distribution of the steel bars, draw the position and direction of the steel bars with chalk, and try to avoid the stirrups as much as possible at the testing point.
2. The direction of probe movement should be perpendicular to the direction of the steel bars. When the probe axis is parallel to the axis of the steel bar, the sensitivity is high. When the probe axis is perpendicular to the axis of the steel bar, the sensitivity is low. During testing, it is necessary to ensure that the probe axis is parallel to the tested steel bar and move the probe in the direction perpendicular to the axis of the tested steel bar.
3. Pay attention to the smoothness of the surface of the tested component. To ensure testing accuracy, a flat test surface is selected during the testing process. When the surface is uneven or the protective layer is thin, a non-metallic thin plate of known thickness can be placed and subtracted from the measurement results.
4. Pay attention to resetting during the testing process. Reset every 10 minutes, and during measurement, reset first and then measure again.
5. Reset away from ferromagnetic materials. Due to the use of electromagnetic principles in the instrument, it is necessary to stay away from magnetic substances and electromagnetic interference when resetting.
　　Reinforcement position detectorThe principle of detection and on-site testing, therefore, during the testing process, the probe can automatically lock the point that is most affected, that is, the point with a high signal value, when it moves. Obtain the thickness value based on the correspondence between the thickness of the protective layer and the signal.