Laser sensors measure profile thickness.

Single point laser sensors are said to be well suited for thickness measurement, profiling, positioning and other applications in most industries that require a sensor with a long stand-off and measurement range. The DLS-2000 laser displacement sensors are lower in cost than many other comparable sensors, but at the same time highly accurate and among the most versatile in the industry due to their small size, according to the manufacturer.

Offset distance, which is the distance from the sensor face to the beginning of the measurement range, is 4.0 in. (100 mm), 10 in. (254 mm) or 19.7 in. (500 mm) for the long-range version. The sensors deliver a 25-micron resolution at a 1.8 kHz scan rate or a scan rate of 1.667 kHz for the long-range version. Measurement range is 11.8 (300 mm), 24 in. (610 mm) or 118 in. (3,000 mm), depending on the model selected. Accuracy is [+ or -] 0.05%.

Using laser triangulation principles, the CCD-based DLS-2000 series incorporates automotive laser power control that compensates for changes in color and surface characteristics. By eliminating a need for a separate controller, the sensor conserves production space and decreases set up time.

A digital RS-232 and RS-485 interface converter permits interface connection to most PCs or PLCs to manipulate common configuration parameters and provide simple solutions. Utility set-up software is Windows 3.1, 95 or NT compatible. An analog output (0 to 10 VDC and/or 4 to 20 mA) is also available. Resolution is either 0.001 in. or 0.002 in. (0.025 mm to 0.051 mm) for digital output or 0.003 in. or 0.006 in. (0.075 to 0.152 mm) for analog output.

The 655 nm or 670 nm Class IIIb laser sensor comes in an aluminum enclosure.

LMI Technologies

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