MTS Fundamental Video Extensometer - Manual (Page 34)

Fundamental Video Extensometer 34
Connections
Connections
There is a network cable which goes from the acquisition card to the camera
using the Ethernet port of the PC to transfer the images. The other cable is for the
power supply of the camera; it uses a Hirose 12-pin connector.
Equipment Installation
Camera Mounting
In order to carry out tests of good quality, level the camera perfectly in the axis of
the specimen.
Specimen Installation
It is essential that the grips be perfectly aligned to avoid a rotation of the
specimen at the beginning of the test which would distort the measurements
(especially transverse strain).
Lighting
The specimen can be illuminated by either a natural light, or by an artificial light
to improve contrast.
If you use an artificial light, it is recommended to use it without focusing directly
on the specimen. Focusing directly on the specimen can create shadow areas
which could affect the sharpness of the image; but it depends on the specimen
With a UV spotlight, use direct lighting close to the specimen, and use anti-UV
safety glasses.