UGC-VE-4106 ASTM Video Extensometer

ASTM E83 Class B-1 video extensometer with a 400 mm LED for longer specimens

The UGC-VE-4106 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 ASTM-optimized 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. Optimized for ASTM E83 Class B-1 strain measurement in tensile testing. 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

The UGC-VE-4106 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 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

 

When to choose the 400 mm housing

The 4000 Series uses the same ASTM-optimized camera as the UGC-VE-2106 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-2106 is usually enough.

 

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 with similar models

• UGC-VE-4105: 4000 Series single-camera, 5 MPx, Class 0.5 130 mm, 175 Hz typical

• UGC-VE-4109: 4000 Series single-camera, 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.