UGC-VE-4109 9 MPx Single-Camera Video Extensometer

9 MPx video extensometer with a 400 mm LED for a larger illuminated area

The UGC-VE-4109 is a non-contact optical (video) extensometer from the X-Sight 4000 Series, supplied, configured and supported by Universal Grip. It tracks gauge marks on the specimen with one 9 MPx camera and reports strain, total length, delta length and angle in real time, so it can stay on the specimen through break with no knife edges to slip or damage. The longer housing and 400 mm LED illuminate a larger area than the 2000 Series — the better choice for long or high-elongation specimens.

 

Measuring length, accuracy class and sampling rate

Per ISO 9513 the UGC-VE-4109 measures 220 mm at Class 0.5, 440 mm at Class 1 and 880 mm at Class 2. Class 0.5 is the tight class labs choose for modulus and proof-strength work; ISO 6892-1 calls for Class 1 or better for yield and proof strength and allows Class 2 for elongation after fracture.

Typical sampling is 75 Hz (32 Hz with the full image), and narrowing the view width raises it to 1 kHz. Higher pixel counts trade frame rate for field of view: at this resolution the camera favours reach and resolution over raw speed.

As a sizing check: the Class 2 measuring length of 880 mm is long enough to follow a gauge section of about 0.9 m, to measure several gauge lengths on one long specimen, or to watch more than one specimen at once. We confirm the usable field from your specimen, grips and expected elongation.

 

What the UGC-VE-4109 is best for

• rubber and elastomers to ASTM D412 and ISO 37, where elongation can exceed 500%

• thin plastic film to ASTM D882

• textiles and webbing to ASTM D5034 and ASTM D5035

• foams to ASTM D3574 and ISO 1798

 

When to choose the 400 mm housing

The 4000 Series uses the same 9 MPx camera as the UGC-VE-2109 but a 424 mm housing with a 400 mm, 330 lm LED. The longer light evenly illuminates a larger area, which helps with long or high-elongation specimens, darker or reflective surfaces and viewing through a temperature-chamber window. If your field of view is short, the more compact UGC-VE-2109 is usually enough.

 

Choosing the lens and working distance

Measuring length, lens focal length and working distance are linked: choose two and the third follows. For the Class 0.5 field of view (220 mm high by 116 mm wide) the working distances are 12 mm lens 169 mm, 16 mm lens 233 mm, 25 mm lens 378 mm, 35 mm lens 519 mm, 50 mm lens 720 mm (from the front cover). Longer working distances reduce LED intensity and can need longer shutter times, so tell us your frame and chamber geometry and we will pick the lens.

 

Connects to your testing machine

Strain is streamed live to the test-machine controller over DOLI Binary, MODBUS, HP Video, TCP/IP or RS232, as an analog signal through auxiliary D/A converters, or as an encoder-style quadrature pulse. The JSON and MRT APIs let your test software start and stop measurement, switch methods and set the gauge length. That is how we retrofit video extensometers to Instron, MTS, ZwickRoell, Shimadzu, Test Resources, ADMET and Galdabini frames; see retrofitting a video extensometer to an existing machine.

 

Compare the UGC-VE-4109 with similar models

• UGC-VE-4106: 4000 Series single-camera, ASTM-optimized, ASTM E83 Class B-1, 200 Hz typical

• UGC-VE-4116: 4000 Series single-camera, 16 MPx, Class 0.5 330 mm, 70 Hz typical

• UGC-VE-2109: 2000 Series single-camera, 9 MPx, Class 0.5 220 mm, 75 Hz typical

• UGC-VE-2209: 2000 Series dual-camera, 9 MPx, Class 0.5 420 mm, 75 Hz typical

Not sure which model fits? Read how to choose an extensometer, gauge length selection for video extensometers, or compare all models on our video extensometer page.