UGC-VE-4106-3D ASTM 3D Stereo Video Extensometer

Stereo 3D video extensometer configured for ASTM E83 Class B-1

The UGC-VE-4106-3D is a non-contact optical (video) extensometer from the X-Sight 4000-3D Series, supplied, configured and supported by Universal Grip. It tracks gauge marks on the specimen with two ASTM-optimized 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. Optimized for ASTM E83 Class B-1 strain measurement in tensile testing. The stereoscopic camera pair captures spatial movement and deformation, making results resilient to out-of-plane specimen motion and improving accuracy.

 

Measuring length, accuracy class and sampling rate

The UGC-VE-4106-3D is configured to your specimen for ASTM E83 Class B-1: we set the lens and working distance from your gauge length and expected elongation and confirm the measuring length at quote. Class B-1 is a tighter class than the Class B-2 that ASTM E8/E8M and ASTM D638 typically call for, so one device covers yield, modulus and elongation work.

Typical sampling is 200 Hz (60 Hz with the full image), and narrowing the view width raises it to 500 Hz. The ASTM-optimized camera keeps a high typical rate for strain-rate-controlled tests while holding Class B-1 accuracy.

 

What the UGC-VE-4106-3D is best for

• metals to ASTM E8/E8M and ASTM A370 with 0.5 in or 1 in gauge lengths

• plastics to ASTM D638, where modulus depends on extensometer accuracy

• reinforcing bar to ASTM A615 and other long ASTM gauge lengths

• labs that report to ASTM and want one non-contact device for several gauge lengths

 

Why measure in 3D

A single camera sees only in-plane motion, so a specimen that moves toward or away from the lens reads as false strain. The stereo pair in the 4000-3D housing triangulates every gauge mark in three dimensions, which removes that error for thin sheet, film, composites and parts that twist, bow or slip in the grips. The 3D line-probe module is included.

 

Choosing the lens and working distance

Measuring length, focal length and working distance are linked. The 8 mm (standard) lens covers 8–10 in measuring length at about 9.4–12 in from the front cover. The 12 mm (on request) lens covers 6–9 in measuring length at about 10.6–16.5 in from the front cover. The 12 mm lens must be specified at order. These values are for the ASTM-optimized camera in the 200 mm housing; we confirm them for this configuration at quote.

 

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-4106-3D with similar models

• UGC-VE-4105-3D: 4000-3D Series stereo, 5 MPx, Class 0.5 110 mm, 175 Hz typical

• UGC-VE-4109-3D: 4000-3D Series stereo, 9 MPx, Class 0.5 220 mm, 75 Hz typical

• UGC-VE-2106: 2000 Series single-camera, ASTM-optimized, ASTM E83 Class B-1, 200 Hz typical

• UGC-VE-2206: 2000 Series dual-camera, ASTM-optimized, ASTM E83 Class B-1, 200 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.