FTQN-5A Laser Deflectometer

How to detect bridges with FTQN-5A laser deflectometer? Test scope:Laser deflectometer is used for measuring static and dynamic deflection, impact coefficient, power spectrum, and interval frequency of various bridges; Low frequency vibration and displacement monitoring of various large structures can provide accurate data for bridge construction, supervision, acceptance, and testing departments, effectively guiding their work.

The FTQN-5A laser deflectometer uses a long-distance non-contact photoelectric conversion method to measure the dynamic and static deflection curves of bridges. It innovatively integrates optical path analysis and image acquisition, using one target and two lights, and dynamic accuracy range control, flexibly adapting to various customer and on-site requirements. Powerful processing software can obtain the impact coefficient of loads and the distribution of structural internal forces from dynamic curve numerical analysis, which helps to determine the weak parts of bridges and the overall integrity of the structure. It is a practical bridge detection equipment.

1How to detect bridges with FTQN-5A laser deflectometer? Instrument principle:

The FTQN-5A laser deflectometer fixes a dedicated target to the measured point of the bridge to be tested, allowing the target to organically combine with the bridge to form resonance. The bridge vibration is converted into light source vibration of a specific wavelength, and the measured light signal is analyzed to a dedicated high-precision industrial CCD through an optical analysis system. The change in the center coordinates of the target imaged on the CCD can accurately measure the longitudinal and transverse displacement of the measured bridge under load and its response curve to time. The K value (Kx, Ky) of the system, which represents the actual displacement value of each pixel on the CCD, can be calibrated before measurement. The schematic diagram of the testing system detection is shown below:

IIHow to detect bridges with FTQN-5A laser deflectometer? Application fields:

1. Bridge construction control monitoring;

2. Current bridge dynamic and static load experiments;

3. Bridge completion acceptance and appraisal;

4. Inspection of special bridges such as floating bridges and suspension bridges;

5. Deformation monitoring of beams and columns in large-span structures;

6. Monitoring of low-frequency vibrations in large structures;

7. Deformation and displacement monitoring of high-rise buildings;

8. Deformation and vibration displacement monitoring of dams and docks;

9. Vibration and deformation detection of large piers, abutments, drilling platforms, etc;

10. Detection of load displacement of crane arm and suspension rod.

IIIHow to detect bridges with FTQN-5A laser deflectometer? Product Features:

1. Solved the problem of separating optical path analysis and image acquisition in other similar products, integrating the two organically, greatly improving detection accuracy and system stability;

2. Detection of photoelectric conversion principle, not limited by on-site environment and bridge type, with strong adaptability;

3. Non contact, long-distance, high precision, scientific and efficient design principles;

4. Dynamic accuracy and range, suitable for various bridge types, sites, and different customer needs;

5. High speed dedicated high-precision industrial surface array CCD, capable of achieving two-dimensional deflection measurement in a single operation;

6. One target and two lights, suitable for different detection distances and harsh environments;

7. Automatic calibration to avoid human error and save manpower;

Real time display of measurement data, automatic saving, highly intelligent;

9. Wireless remote control target, equipped with high-capacity lithium battery, efficient and easy detection;

10. Provide dedicated UMPC control measurement, compact and aesthetically pleasing without sacrificing efficiency.

4、 Technical parameters:

1. Detection method: photoelectric imaging method;

2. Measurement parameters: single point dynamic, multi-point static;

3. Detection distance: 5-500m;

4. Detection range: 0.8m;

5. Measurement accuracy: 0.01mm (at 10m);

6. Sampling frequency: 200Hz;

7. Frequency response: 50Hz;

8. Recording time: Any time can be set;

9. Control mode: notebook or dedicated UMPC control;

10. Transmission interface: USB;

11. Calibration method: automatic calibration;

12. Target configuration: remote control, built-in lithium battery, 10 hour battery life;

13. Battery capacity: The low light can work for 20 hours, and the high light can work for 10 hours;

14. Working temperature: -30 ℃ to 70 ℃;

15. Software function: Can calculate deflection ZUI large and small values, impact coefficient, power spectrum, interval frequency, etc.