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|Technical Data for the Acuity distance measurement sensor|
|Specifications for super-long-range measuring devices at speeds to 2 KHz|
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Acuity's AccuRange 3000 distance measurement sensors employ pulsed time-of-flight measurement principles to measure very long distances at short measurement intervals. The solid-state laser diodes can be pulsed at nanosecond pulse rates and typical accuracies are within a few centimeters
The AR1000 measures from 0. to 300 m (~10 0 feet) without the use of reflective targets. It can measure to any opaque surface. The accuracy of the measurement is typically +/-20 mm, but it will depend on the reflectivity of the target surface, lighting conditions and temperature conditions and the number of distance samples that are averaged before transmitted to the user . Dark-colored targets may be less accurate targets than light-colored targets. In special sampling modes, the AR3000 can measure the velicity of moving targets.
For very distant measurements, one can use reflective target material (3M Scotchlite 3000X) to measure between 30 and 150 meters (500 feet). The AR1000 has a Class 2 visible laser diode for simple aiming and setup. The laser beam spot size is 5 mm with a divergence of 0.6 milliradians. Therefore, large targets may be necessary at very long distances.
The primary measuring laser is infrared (invisible to the human eye). The AR3000 has a pilot aiming laser that can be toggled through the serial interface. This visible, Class 2 laser beam makes it simple to adjust the alignment to distant targets.
This measurement sensor comes standard with a RS232 serial interface for communication with a PC computer or PLC. Also standard is a 4-20 mA current loop output and a single Limit switch for indicating alarms. The linearity of the analog output is commenserate with the serial output. Limit aloarms can be useful for triggering an external device when a target reaches a set position. The AR3000 can automatically sample distances or receive an external trigger for a single distance measurement. As an option, the AR3000 can be ordered with RS422 (replaces RS232), SSI or Profibus outputs. Data formats are both ASCII and Binary with selectable termination characters. This sensor, much like the AccuRange 4000 series, will also output the sensor's internal temperature and return signal amplitudes in its data stream. Amplitude can also be qualitatively judged using the indicator LED's on the rear panel of the sensor.
The sensor is ordered with an optional 2 meter (6 ft.) cable with Binder series 723 flange connector and soldertail wire termination. Users design their own connectors suitable for their application requirements.
The AR3000 has several measurement modes that are optimized for speed, accuracy, long distances or short measurement windows. Consult the User's Manual for a description of these modes.
AccuRange™ 3000 Laser Distance Sensor data sheet
Acuity's AR3000 User's Manual
Acuity's AR3000 configuration software
Standard RS-232 Serial Output
Standard Current Loop
Distance measurement sensor | AR3000
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Measurement Systems, Inc.
Makers of precision surface measurement and alignment products