Laser extensometer LE series

Model LE-05 and LE-15 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 éliminâtes 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. Measurement Range: LE-05: 8 to 127 mm (0.3 to 5 inches); LE-15: 8 to 381 mm (0.3 to 15 inches) Max. Resolution: LE-05: 0.001 mm (0.0001 inches); LE-15: 0.01 mm (0.001 inches) Linearity1: LE-05: ±0.01 mm (±0.0004 inches); LE-15: ±0.04 mm (±0.002 inches) Repeatability1: LE-05: ±0.005 mm (±0.0002 inches); LE-15: ±0.04 mm (±0.002 inches) Max. Scan Rate: 100 scans/second Target Distance: Two selectable factory preset values between 254 and 457 mm (10 and 18 inches) Default values are: LE-05: 305 and 381 mm (12 and 15 inches) LE-15: 381 and 457 mm (15 and 18 inches) Zéro Suppression: Reading may be set to zéro anywhere in measuring range Scan Line Orientation: Vertical Scan Averaging: Moving window averaging over a selectable number of scans Analog Output: 16 bit, ±10 VDC standard