The HC-GY91 Multi-Channel Steel Bar Scanner is a high-performance Non-Destructive Testing (NDT) device. It is primarily used to assess the construction quality of reinforced concrete structures, accurately determining the concrete cover thickness, rebar location, spacing, and orientation, as well as estimating rebar diameter. Additionally, it can detect magnetic objects and conductors within non-magnetic and non-conductive media.
Core Functions and Design Highlights
High-Efficiency Multi-Channel Detection:
- Features 3 sets of sensors (3 channels) for simultaneous measurement, significantly boosting inspection efficiency.
- Supports diagonal rebar detection and multi-segment scanning, displaying results via an intuitive cover thickness heatmap.
Intelligence and High Precision:
- Smart Detection Mode: Automatically corrects for electromagnetic interference from rebar, enabling single-pass measurements.
- Heatmap Imaging Analysis: Specifically designed for densely reinforced structures, easily handling complex rebar layouts.
- Smart Calibration: Built-in temperature sensors detect environmental changes and prompt for smart calibration to ensure data accuracy and reliability.
Advanced Positioning and User Interaction:
- Four-Way Laser Guidance: Projects four laser lines to assist operators in precisely locating rebar in real-time.
- Real-Time Positioning: Integrated 4G module and SIM card slot support real-time location tracking of inspection sites.
- 3.5-inch Color Touchscreen: Equipped with a high-resolution (800x480) capacitive touchscreen and physical buttons for a smooth, user-friendly interface.
Data Management and Modeling:
- 3D Modeling: Supports 8x8 grid scanning mode to accurately map rebar distribution; 3D models can be generated via PC software.
- Large-Capacity Storage: Internal memory stores data for up to 25,600 structural elements.
- Convenient Data Transfer: Built-in low-power Bluetooth chip connects to multi-platform apps for real-time data uploading; also supports wired USB data transfer.
Software Support
This product comes with professional software for processing and analyzing inspection data. It enables 3D visualization of measurement results and in-depth data analysis, while also allowing users to print and export inspection reports with a single click.
Frequently Asked Questions (FAQ)
Q1: What main issues does the HC-GY91 scanner address?
A: It addresses challenges associated with inspecting concealed elements in reinforced concrete structures after completion—such as verifying correct rebar placement and concrete cover thickness, as well as accurately distinguishing individual rebar strands in areas with dense reinforcement.
Q2: What is the practical use of the laser guidance function?
A: The four-way laser lines (as shown in Figure 1-2.webp) project precise crosshairs onto the structural surface, allowing the operator to visualize the projected location of the rebar within the wall, beam, or column in real-time during scanning.
Q3: Does it support the detection of deep-seated rebar?
A: Yes. Through optimized design, this model offers an extended detection range with a maximum depth of 230mm, meeting the requirements for inspecting concrete cover over deep-seated rebar.
Q4: What should I do if inspection data is lost?
A: The device features a large storage capacity (25,600 structural elements) and supports real-time Bluetooth data uploading. We recommend connecting to the app to synchronize and upload data, thereby ensuring a dual backup.
Q5: Does ambient temperature fluctuation affect measurement accuracy?
A: It can have an impact; however, the HC-GY91 is equipped with a built-in ambient temperature sensor. It automatically detects temperature changes and prompts the user to perform an intelligent calibration, ensuring data consistency and accuracy across different environments.
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