Elevator Position Measurement Posted in: Position Measurement

Laser Sensors Measure the Position of Elevators Between Floors

The design integrators for the Minneapolis Public Library selected Acuity laser rangefinders to monitor the position of their elevators. The laser rangefinders were installed at the base of the elevator shaft and aimed upward to a target affixed to the bottom of the elevator cart.

The laser rangefinders were used at a sampling rate of 100 Hz to precisely monitor the elevator position. The position monitoring data was used in the software controlling system to display illuminated text. Story titles of recently checked-out books were displayed in large illuminated text as the elevators move between floors.

Our rangefinders are used in similar elevator positioning applications. These applications have ranged from indoor elevator position measurements to outdoor position tracking of metallic elevators over a 200-meter range.

Related Products

AR1000 Laser Distance Sensor

The Acuity AR1000 laser distance sensor can measure up to 30 meters on natural targets and up to 150 meters with a retroreflective target with an accuracy of ± 3 mm. This rugged sensor is built for tough, industrial environments and applications such as fill level measurement and material height monitoring.

AS2100 Accurate Distance Sensor

The AS2100 is a highly accurate laser distance sensor that is designed to work well outdoors, in bright lights, and even on difficult targets such as hot or dark surfaces. With the ability to take accurate measurements (± 1 mm) from distances up to 500 meters away, and a measurement frequency of up to 250 Hz, it is the perfect laser for a wide range of applications.

AR2700 High-Speed Long Range Sensor

Acuity Laser’s ultra-compact rangefinder model. This eye-safe rangefinder has a measurement frequency of up to 40 kHz and can measure distances to natural targets up to 70 meters away or to retroreflective targets 270 meters away. This laser is best for applications that demand high sampling rates.

AR3000 Distance Measurement Sensor

AR3000 distance measurement sensors are Acuity’s longest-range models. Ideal for measuring positions of cranes and trolleys, the time-of-flight sensor can measure up to 300 meters to natural surfaces and up to 3,000 meters when using a retroreflective target.

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