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Instrumentation Service
List of instrumentation services Photogrammetric measurement system
Deformation monitoring with fiber optic sensors (SOFO V) 3-D seismic simulator
Particle image velocimetry system High temperature measurement service using an ultrasonic sensor
Instrumentation Service

Photogrammetric Measurement System
For determining the precise dimensions of structures

Keywords: Photogrammetric measurement, Digital camera, Displacement measurement, Position measurement

Features

An object is photographed from various viewing directions to obtain digital images that are processed using powerful image processing software. The 3-D coordinates of the measurement points at which targets are placed are calculated precisely.

 Photogrammetric Measurement System

1. High accuracy and precision

Accuracy is better than 1:100,000 of the object size. This means that accuracy is 0.025~0.050 mm for a 3-m object and 0.1 mm for a 10-m object.

2. Application at various locations

Measurements in narrow spaces are possible so long as a photographing distance of over 1 m is assured. The highly portable system makes it possible to detour around obstacles between the camera and the object.

3. Short data processing time

After data acquisition, the digital images are processed on a personal computer. The analysis time is about 1~2 hours.

4. Comparison with other 3-D measurement systems

This system can measure large objects that are not measurable with contact type 3-D systems. It also provides measurements without moving the object being measured. The highly portable system is easy to transport and does not require a total station. Data acquisition time is 50% faster.

5. Applications

Plant piping, automotive, aerospace, shipbuilding, civil structures and many others