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Holographic Imaging Measuring System for Tunnel


The system employs highly accurate laser scanning technology to generate dynamic holographic images of tunnel surface under the speed of 5km/h, and evaluate and output the abnormal status of tunnel surface. Meanwhile, it can accurately measure tunnel clearance.

 

Technical index

Dynamic inspection range

0.5~30m

Sampling frequency

1MHz

Reflection area

2%~100%

Resolution

Better than 3mm

Angle resolution:

Better than 0.05

Inspection accuracy of clearance

8mm

Scanning frequency

100Hz

Laser security

3R (IEC EN60825-1)

 

Application performance

1 Tunnel imaging and clearance inspection car of Beijing Special Passenger Railway Line Maintenance Base
2 Tunnel imaging and clearance inspection car of Wuhan Special Passenger Railway Line
 Maintenance Base

 

2D & 3D Section Display

 

Holographic Images