Multi-Point Sensor scalps aluminum ingots.

Press Release Summary:

B8 Sensor has 8 individual laser points spaced every 3.0 in. over 2 ft length. Depth of measurement range of each laser point is up to 14 in., with accuracy of +/- 0.020 in. and resolution of less than 0.010 in. Binocular vision system verifies information collected. With 2 DSP computer chips, B8 can be linked or multiplexed with other units. 16-bit controller and RS-485 or RS-232 interface provides connections with PCs, PLCs and other automated systems.

Original Press Release:

LMI Selcom Multi-Point Sensor With Visible Lasers And Higher Speed For Scalping Aluminum Ingots Or Other Large Area Measurements Introduced

Contact: David Allen
(248) 359-2401
For Immediate Release
February 21, 2002

DETROIT, Michigan USA --- A high resolution multi-point sensor for large area measurement such as the scalping of aluminum ingots was introduced by LMI Selcom at the recent TMS Show in Seattle, Washington, USA. LMI Selcom has offices in Detroit, Michigan USA and Gothenburg, Sweden.

"The LMI Selcom B8 scan head is faster than any multi-head sensor we have ever made," noted David Allen, LMI Selcom Business Manager. "It is ideal for scalping plus various other applications in the ferrous and non-ferrous market."

The B8 multi-point sensor has eight individual laser points spaced every 3.0 in. (7.62 cm) over a 2.0 ft (61 cm) length. The sensor's fast response rate and tight control provides the high density information required by the scalping machine to make an accurate measurement of the lowest point on the ingot for optimum quality control and reduced waste.

The depth of the measurement range of each laser point is up to 14 in. (36cm), with an accuracy +/- 0.020 in. (0.05 cm) and a resolution of less than 0.010 in. (0.025 cm) of the measurement range. The housing is rated NEMA-4 (IP-65) and is protected by a gasket aluminum enclosure for easy operation at temperatures from 32°F to 120°F (0° to 50°C).

A revolutionary binocular vision system verifies all the information collected. Sensors adjust for target angle, color and other defects. The system has the ability to be multi-plexed with multiple sensor heads to provide an effective scan width of virtually any size desired.

The B8 sensor uses 650 nm red laser diodes for easy alignment and
installation with one cable. The sensor interfaces to any PC-based data acquisition system and is versatile to meet constantly changing computer technology. LMI also offers set-up and calibrate software for easy integration on single or multiple head systems.

Besides scalping, the B8 sensor is also ideal for height and profile measurement of various metals, sizing of materials and various other large scale measurements that require profiling large pieces of material.

B8 Multi-Point Sensor Described

With two high power DSP computer chips, the B8 Multi-Point Sensor from LMI Selcom can be linked or multi-plexed with other units, providing the same accuracy and resolution of a single unit.

The B8 sensor's 16-bit controller and standard RS-485 or optional RS-232 interface provides simple and easy connections with PCs, PLCs and other automated systems. Input power is 15 to 26 VDC's @ 750 mA. Software comes on a 3.5 floppy disc.

A type GaA1AS Class IIIa laser, laser diodes are projected on the object measured. Reflection off the object's surface produces diffusely scattered light. The light passes through the sensor's imaging optics onto two position sensitive linear CCD line elements. The sensor is not affected by changes in ambient
lighting or temperature.

Besides the B8 sensor, LMI Selcom also offers a variety of single-point and multi-point non-contact laser sensors to the aluminum industry for molds, launders, as well as other applications such as coil wind-up and take-off. A Tap-Out Actuator for improving safety and quality when casting out from a gravity furnace, a Pin Position Actuator for high performance molten metal level and flow control in downspouts and an overpour protection device for increasing safety and control during pouring are also available.

LMI Selcom is part of LMI Technologies, Inc., a world leader in 1D, 2D and 3D machine vision sensors.

For more information on the new B8 Multi-Point Sensor or other products LMI Selcom offers to the aluminum market, contact LMI Selcom in North America at LMI -Laser Measurement International Industrial Sensors Division at 21666 Melrose Avenue, Southfield, Ml 48075 or call (248) 359-2409, FAX (248) 355-3283 or E-Mail

Outside of North America, contract LMI Selcom at Box 250,
Ogardesvagen 19A, SE-433 25 Partille, Sweden, Tel: +46 (0) 31-336-25 42. FAX +46-(0) 31-44-61-79 or E-Mail LMI is on the internet at

Editor Contact: Kevin Nichols or Dick Stark, Stark & Associates, Inc. 801 E. Morehead St, Suite 305, Charlotte, NC 28202
Tel: (704) 332-5004, FAX: (704) 332-3771 or E-Mail or

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