Sensors & Transducers


Laser displacement sensors

December 2010 Sensors & Transducers

Precise height and thickness measurement of many industrial targets.

A series of triangulation laser displacement sensors for non-contact height or thickness measurement of a wide variety of materials has been introduced by Banner Engineering. Sheet metal, wood, ceramic, paper, plastic, rubber, foam and baking dough are some of the materials that can be measured for quality assurance. Results are consistently accurate, with precision ranging to the micron level, whether the target material is shiny, dark, hard or soft.

The new LH Series sensors provide precise measurement of distance, web thickness and alignment. Applications include hot parts, machined parts, semiconductors and PCBs, shiny or reflective parts, and soft or sticky parts. There are three models in the series, with measurement ranges of 25–35, 60–100 and 100–200 mm.

Thickness is measured by two sensors mounted at either side of the target that automatically synchronise with one another. Up to 32 sensors can be easily combined in a mixed measurement network of multitrack displacement or thickness sensors. A wide selection of mounting brackets and industrial cords allows efficient creation of sensor networks.

The dedicated software application included with each sensor allows easy setup and configuration for new applications. The software accommodates data logging and monitoring for statistical process control. Output communication is via simultaneous 4–20 mA (16 bit D/A) and RS485 serial connection.

Measurement rates can be set to dynamically adjust based on target colour and condition, or locked for applications requiring a constant sampling speed. The robust, self-contained sensors are IP67 rated for use in harsh environments. No external controller is required.

For more information contact Rodney Topham, RET Automation, +27 (0)11 453 2468, [email protected], www.retautomation.com



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