Máy đo độ giãn bằng laser không tiếp xúc-VTS
Laser Extensometer are precision, wide-range instruments specially designed for accurate, non-contact measurement of strain on various materials under tensile or compressive conditions.
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Sự mô tả
These extensometers are high precision non-contacting units for strain measurement in materials testing. They use a high speed laser scanner to measure the spacing between reflective tape strips on the sample. The measurement range is from 8 đến 127 mm (0.3 đến 5 inch) for the LE-05. The gauge length is determined by the user. This allows high elongation measurements when shorter gauge lengths are used
laser extensometers measure strain optically, without contacting the specimen, using laser diode technology. The extensometers are self-contained and portable. They may be interfaced with a variety of testing machines and data acquisition systems using the ±10V analog output or bi-directional RS-232 serial port. Operation may be local or remote. A digital display is included.
The scanning beam is always perpendicular to the specimen, unlike most laser extensometers. This eliminates errors when viewing through windows in chambers. It also minimizes sensitivity to the distance between the extensometer and the sample. Because the unit measures reflected light, no receiver is required behind the sample.
For non-contacting measurement applications requiring higher resolution or higher data rates, see the Epsilon ONE.
