UGC-VE-2206 ASTM Dual-Camera Video Extensometer

Two ASTM-optimized cameras for long ASTM gauge lengths and high elongation

The UGC-VE-2206 is a non-contact optical (video) extensometer from the X-Sight 2000 Series, supplied, configured and supported by Universal Grip. It tracks gauge marks on the specimen with two ASTM-optimized cameras 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. Ships with a low-distortion 8 mm lens; a 12 mm lens is available for shorter measuring lengths.

 

Measuring length, accuracy class and sampling rate

With the standard low-distortion 8 mm lens the UGC-VE-2206 measures up to 17.5 in at a 0.5 in gauge length and up to 19.5 in at a 1 in gauge length while meeting ASTM E83 Class B-1. 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-2206 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

 

Joined, separated or dual fields of view

The two 200 mm units can be joined with one calibration grid so a gauge mark can travel from one camera's view into the next, nearly doubling the measuring length. They can also run separated, to measure two zones of a long specimen, or as two independent single-camera extensometers. Each unit weighs 1.4 kg and draws 12 W.

 

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.

 

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-2206 with similar models

• UGC-VE-2205: 2000 Series dual-camera, 5 MPx, Class 0.5 2 × 130 mm, 175 Hz typical

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

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

• UGC-VE-4106: 4000 Series single-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.