AR550 High Speed Laser Position Sensor

AR550 High Speed Laser Position Sensor

The AR550 high speed laser sensor is Acuity’s fastest triangulation device for dimensional and distance measurement. At sampling rates up to 70kHz, these sensors are typically used for applications that demand high speed such as vibration measurements, scanning of roads, vehicle crash test, and ballistic measurements.


Industry Leading Speed – Up To 70kHz

The AR550 high speed laser displacement sensor comes in one compact package size with 9 different measurement ranges: 2mm, 5mm, 10mm, 25mm, 50mm, 100mm, 250mm, 500mm, and 750mm. The high-speed laser has a linearity of ± 0.15% and boasts a resolution down to within 0.01% throughout the measurement range.  All AR550 sensors come standard with Ethernet output and 0-10V, with a selection of either RS232 or RS485 as a serial communication option. The sampling rate of the AR550 can be specified and the high speed sensor can transmit sampling rates up to 70kHz via Ethernet output.  The unique specifications of the AR550 high speed laser sensor offer a unique and impressive laser built for applications needing very high sampling rates with precise measurements.

Versatile Options – Laser Diode Options, Accessories

The AR550 is available with several power options for both red (660 nm) and blue (405, 450 nm) lasers. Depending on the range, you can select between Class 3R (< 5 mW), and Class 3B (up to ~100 mW) lasers in both colors. The higher powers are useful in applications where the target is especially dark and far away, and they can help reduce noise in applications where a lower-class laser just isn’t bright enough.

The AR550 high speed sensor has a normal recommended operating temperature range of -10 to 60°C (14 to 140°C), so it can work in most environments without modification.

But if your application doesn’t take place in “most environments,” the AR550 has you covered with these factory-installed options:

  • An internal heater that allows operation in temperatures as low as -30°C (-22°F).
  • An air jacket that allows operation in ambient temperatures as high as 120°C (248°F)
  • A splash shield that helps keep water from landing on the laser window and interfering with the beam or opt

Built For Versatile High Speed Applications

Unlike other high-speed sensors, the AR550 electronics are integrated directly inside the compact sensor. The sensor’s unique dimensions and high-speed capability allow the laser sensor to be installed in various environments demanding high-speed. These include applications such as:

  • Scanning of roads – road surfacing, road profiling, road texturing, etc.
  • Vibration measurement – speaker displacement, engine displacement, structural displacement testing
  • Capturing fast events – crash test sensors, environmental/infrastructure testing
  • High speed measurements needed on hot targets

Outputs and inputs

All AR550 High Speed Sensors come standard with Ethernet output and 0-10V as the analog option. The selection is either a standard RS232 communication or an optional RS485 serial communication option. The Ethernet interface is used only for the transmission of data from the sensor. The sensor parameters can only be adjusted or set using a serial communication.

The AR550 has a limit output for indicting alarms. This can be useful for triggering an external device when a target reaches a set position. The AR550 also has a line to receive an external trigger to take single distance measurements.