UGC-VE-4109-D 9 MPx Dual-Camera Video Extensometer

Two 9 MPx cameras in a single 400 mm housing: one box to mount and cable

The UGC-VE-4109-D is a non-contact optical (video) extensometer from the X-Sight 4000-D Series, supplied, configured and supported by Universal Grip. It tracks gauge marks on the specimen with two 9 MPx cameras in one housing 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. Two cameras share one housing and one 400 mm LED, joined with a calibration grid for long or highly elongating specimens — with a single box to mount and cable.

 

Measuring length, accuracy class and sampling rate

Per ISO 9513 the UGC-VE-4109-D measures 420 mm at Class 0.5, 730* mm at Class 1 and 1150* mm (* additional light may be needed) 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 1150 mm (extra lighting may be needed at this length) is long enough to follow a gauge section of about 1.1 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-D is best for

• high-elongation elastomers to ASTM D412 and ISO 37

• film and sheet to ASTM D882

• geotextiles to ASTM D4632 and ASTM D4595

• rope, cord and webbing to ASTM D2256

 

Two cameras, one housing

The UGC-VE-4109-D puts two cameras and one 400 mm LED in a single 424 mm housing. The cameras sit up to 310 mm apart and are joined with a calibration grid for a longer field of view, but there is only one box to mount, align and cable. That keeps setup fast on frames where space beside the load string is tight.

 

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 (420 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-D with similar models

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

• UGC-VE-4116-D: 4000-D Series dual-camera, 16 MPx, Class 0.5 625* 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.