4TMC - PROCESS DEVELOPMENT CC

Laser Position Measurement

LAS-laser sensors cover a measurement range from 30 to 1000mm. The internal micro controller gives a precise output signal, which is proportional to the distance to be measured. No external electronic device is needed. An intelligent on-board signal conditioning unit enables the sensor to measure accurately on different target colours and surfaces.

The distance measurement is based on the triangulation principle: The laser beam hits the target as a small spot. The position of this spot is detected by the receiver. Then the sensor can measure the angle and calculate the distance to the target.

The possible resolution and accuracy change with the measure distance to the target object. The receiver of the sensor is a photo diode array (a PSD element for faster response). The readout of the photo diode array is handled by an internal micro controller. The controller calculates the precise angle from the light allocation in the photo diode array. The combination of photo diode array and micro controller allows a minimum of undesirable reflections. Thus a precise distance measurement is possible even on critical surfaces.

Product LAS-Z Series LAS-TM / LAS-T (Teach-In) LAM-Series
Ranges 30...50mm, 30...130mm, 200...320mm, 50...250mm, 100...500mm, 200...1000mm 16...26mm, 16...120mm, 30...70mm, 50...300mm, 100...600mm, 200...1000mm 23,75...24,25mm, 23...25mm, 40...50mm, 55...75mm, 95...145mm, 170...270mm
Resolution 0,01mm ... 3mm 0,002mm ... 0,7mm 0,2µm ... 60µm
Linearity ± 0,03mm ... ±12mm ± 0,006mm ... ±2,5mm ± 1µm ... ±200µm
Output analog 0...10V, 4...20mA, optional RS485 0...10V, 4...20mA ± 10V, 4...20mA, RS232C
Response time <10ms <0,9ms 0,1ms to 67ms selectable
Protection class IP67 IP67 IP64(sensor), IP40(electronics)
Laser class class 2, wave lenght 675nm class 2, wave lenght 675nm class 2, wave lenght 670nm
More information

Applications:

-thickness measuring of rolling-mill products

-centering of wheel shafts

-wheel alignment

-automation

-quality control

-process monitoring

-chemical industry

-special machinery

Specials:

-intelligente stand alone systems

-short response time <1ms

-high resolution and accuracy

-unaffected by different colour

-analoge and binary output

-spot- and line detecting

-for different surfaces

-protection class IP 67