Laser-based alignment system
October 8, 2009
The National Superconducting Cyclotron Laboratory at Michigan State University uses a laser sensor in a system to measure the alignment of detectors. A full presentation of the project can be accessed from their website.
Although now discontinued and replaced by the AR700 series, Michigan state selected the AR600-6 with a 150 mm measurement range. The laser has a 5mW visible laser spot and has excellent sensitivity for measuring to shiny targets. The sensor was mounted to dual rotational stages to allow two degrees of freedom. Their system swept the laser spot across the target surface to create polar coordinates for a 3D profile.
Graduate students developed software to control the laser, scan edges with specified step sizes. Output is distance, theta', and phi'; convert laser coordinates to spherical coordinates; correct position for off axis rotation; and combine different reference systems; convert positions to final lab reference frame of choice. For each 0.01° step in angle, the position resolution was ~0.2mm.
- 2D Profile Scanner
- 3D Scanning
- AccuProfile 620 Laser Profile Sensor
- AccuProfile 820 Laser Scanner
- AR1000 Laser Distance Sensor
- AR200 Laser Measurement Sensor
- AR2000 Laser Distance Meter
- AR2500 Laser Sensor
- AR3000 Distance Measurement Sensor
- AR4000 Laser Range Finder
- AR500 Laser Position Sensor
- AR700 Laser Displacement Sensor
- CCS Initial Confocal Sensor
- CCS Prima Confocal Displacement Sensor
- Confocal Displacement Sensor
- Long-Distance Rangefinders
- Triangulation Sensor Applications