AR700 laser displacement sensor in the metals industry

The steel industry demands accurate measuring equipment to be used under difficult circumstances.

The environment is harsh, with high dust content and hot temperatures. The targets, hot metal, can be especially difficult because they radiate glowing light at elevated temperatures.

Acuity’s AR700 series is especially designed to measure to glowing targets. Most sensors used within this industry are equipped with the optional filter and high power laser option. The 20 mW diode generates a stronger signal for a stronger return signal back to the detector. The bandpass filter emits radiation except for a band of wavelengths close to the wavelength of the laser diode.

Dimensions are captured with either single or multiple sensors. Thickness measurements are achieved with the use of two opposing sensors and a standard, PC computer to perform the mathematics and to display the result, even at high speeds.

The sensors are often protected behind insulating glass or within a protective enclosure. Acuity offers customized enclosures for the AR700 sensors through Logika Technologies. These enclosures can be either air or water cooled so that the sensor can be placed close to hot surface targets.