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Working Principles and Applications of Wall Scanners
Wall scanners are devices used to detect the internal structure and hidden objects within walls. Their primary working principles are based on technologies such as electromagnetic induction, ultrasound, and radar, which operate by emitting and receiving signals to detect objects or voids within the walls.
- Working Principles:
- Electromagnetic Induction: Uses electromagnetic fields to detect metal objects within walls. By comparing the strength and frequency changes of the received signals, the location and size of metal objects can be determined.
- Ultrasound: Ultrasound detectors emit ultrasonic waves and receive the reflected waveforms. The changes in these waveforms help determine the structure and objects within the walls.
- Radar: Radar detectors use high-frequency electromagnetic waves to obtain detailed images of the wall’s interior by analyzing the reflected signals, capable of detecting non-metallic objects and voids.
- Applications:
- Construction: Used to detect wires, pipes, and other objects within walls to avoid damage during construction.
- Renovation and Maintenance: Helps home improvement companies and individuals understand the internal condition of walls, ensuring safety during renovation.
- Security Inspections: In public safety and criminal investigation fields, used to find hidden items within walls, such as drugs and weapons.
- Operating Methods:
- Device Calibration: Before use, the wall scanner needs to be calibrated to ensure detection accuracy.
- Scanning the Wall: Place the scanner flat against the wall and move it slowly to cover the entire detection area, maintaining the device’s stability.
- Data Analysis: View and analyze the detection results through the device’s display or connected application software. Based on the displayed images or signal strength, determine the internal condition of the wall.