AR100 Laser Displacement Sensor

AR100 Laser Displacement Sensor

The AR100 is one of the smallest laser displacement sensors in the world. The ultra-compact AR100 comes with ranges from 10mm (0.4 in.) to 500mm (19.7 in.) with a single case size. It can take 9,400 measurements per second and has a linearity of ± 0.05% of the full measurement range for most models. In short, the AR100 is perfect for applications with tight size and mass budgets that can’t sacrifice performance.


Small Laser, Large Range, Impressive Accuracy, Laser Triangulation Sensor

AR100 sensor using triangulationThe AR100 Compact Laser Triangulation Sensor measures just 17 x 45 x 30.5mm (0.67 x 1.77 x 1.2 in.) for all models and weighs just 40g (0.088 lb.) without its cable. It comes in 6 different ranges: 10mm, 25mm, 50mm, 100mm, 250mm, and 500mm.

It’s generally thought that the smaller a triangulation laser is and the longer its range, the less accurate it is. This is mostly true, but improvements in detectors and miniaturized optics have reduced the trade-off significantly. The AR100 has a 0.05% linearity and 0.01% resolution over the full measurement range for the 10mm to 250mm models, and a 0.1% linearity and 0.02% resolution over the full measurement range for the 500mm model.

The AR100 has a maximum sampling rate of 9.4 kHz, so you won’t be sacrificing speed either.

Multiple Laser Colors

The AR100 comes with a Class 2, eye-safe laser (< 1mW) in either red (660 nm) or blue (405 nm). Most applications work great with the more common (and cheaper) red lasers, but if your application has a target that absorbs or emits too much red light, the blue laser option might just make the difference. Our laser sensors all operate based off non-contact measurement.

Stands Up to the Environment

The AR100’s enclosure has a rating of IP67, so it can withstand dusty environments and occasional splashes.

Outputs and Inputs

You can choose a standard RS232 or optional RS485 serial interface for communication with a computer or PLC. The AR100 also comes with an analog output—your choice of 4-20mA or 0-10V. The analog output can be programmed to have a custom measurement span, and the minimum and maximum can be set to any points in the laser’s range.

The AR100 Laser Triangulation Sensor has a limit output for indicating alarms. This can be useful for triggering an external device when a target reaches a set position. The AR100 also has a line in to receive an external trigger to take single distance measurements.