Moduloc Control Systems Sensors & Systems  For Control, Measurement & Management for Process Automation. Moduloc Control Systems Industrial Sensors & Systems for Control, Measurement & Management for Mill & Process Automation.
MLM Laser Triangulation Measurement Sensors


MLM Laser Triangulation Measurement Sensors Advanced Laser Triangulation & CCD array technique with digital signal processing Accurate Laser Distance Measurement by laser triangulation, ideal for Precision Applications
 
Model MLM
Laser Triangulation Sensors
 

MLM Laser Triangulation Measurement Sensors

  • Laser Triangulation & CCD array technique with intelligent digital signal processing
  • Non-Contact Measurement of Distance, Displacement, Thickness & Difference
  • Matching paired sensors will automatically provide width/thickness or differential measurement
  • Works on almost any surface
  • Measurement Ranges: 70 - 170 mm (2.75 - 6.69IN)
  • Resolution: 0.001 mm to 0.005 mm
  • Measurement frequency of 2000 Hz
  • Robust plus compact design
  • RS232 or RS422 Serial Interface
  • Analog Output 4 - 20mA or 1 - 9 VDC
  • Synchronized thickness measurement with two sensors
  • Secondary Environmental Enclosure are available including Air Purged, Air Cooled and Water Cooled with Air Purging
Typical Applications
  • Level Measurement

  • Distance measurement

  • Thickness Measurement

  • Weight/Volume Control

  • Constant Tension Control

  • Roll Diameter

  • Profile Measurement

  • Control of vacuum in containers

  • Measurements for feedback in Production Lines

  • Measurements for quality control and statistics

  • Vibration Monitoring of a Rotating Object

  • Control of Surface Treatments

General Description

The MLM Laser Triangulation Sensors (LTM) is a compact unit with integrated optics and signal processor for precise measurement of distance or product thickness and width. A focused laser spot is illuminated on the object and the image distance determined by internal CCD array. LED’s indicate when the object is at center or is outside measuring range. Installation software is provided for connection to a PC and to display measured values. Measurement of data is via RS232 and analog outputs.

All standard MLM models operate at a measuring frequency of 2000 measurements per second. All standard MLM models operate at a serial output update frequency of either 1000 or 2000 measurement points per second.

All standard MLM models have a programming/select functionality. Group mode is the main feature. In Group Mode a running average is calculated over a user specified number of measuring points. The user also programs the sensor to disregard a number of, usually all, bad (zero) measuring points before calculating the average value. The average values are calculated at full measuring frequency and are used for converting the analog signals. Several median filters and Level Mode are other available features.

Two identical MLM LTM’s when connected together automatically provide change in thickness, width or difference values. The MLC standard models operate at a 2kHz measuring frequency and at a 1kHz or 2kHz update frequency, and have a serial interface baud rate of 38400 or 115200.

These LTM’s can be programmed to output the value in medium filter format, simple average or as running average filter where the user specifies the number of measuring points for the filter block as well as the number of bad zero values to be ignored before calculating and outputting the average value via both the serial and analog outputs. The simple average filter compresses the measuring points into one single output disregarding missing values. A level mode is also available that inverts the outputted values.

These LTM’s have a broad range of usage for measurement off surfaces where other devices fail. Ideal for measuring off wood, plastic, glass, rubber, paper, foam, textiles, food product, cold, hot or molten metals as well as various liquids.


Performance Information

MLM Models

Model

MLM72.5

MLM75

MLM82.5

MLM95

MLM120

Measured range (mm)

5 10

25

50

100

Measuring range  (mm) 70 - 75 70 - 80 70 - 95 70 - 120 70 - 170

Center distance (mm)

72.5 75

82.5

95

120

Resolution at short range (mm)2

0.001 0.001

0.001

0.001

0.001

Resolution at long range (mm)2

0.001 0.001

0.002

0.002

0.005

Measurement Linearity (mm)2

±0.003 ±0.004

±0.008

±0.013

±0.025

Laser Spot Diameter (mm)

Ø 0.1 Ø 0.3

Ø 0.3

Ø 0.4

Ø 0.4

   

Click Here for Additional information on MLM Laser Triangulation Meters.

MLM72.5

MLM75 MLM82.5 MLM95 MLM120
 
ML Family of Laser Triangulation Meters MLB Laser Triangulation Meters MLC Laser Triangulation Meters MLS Laser Triangulation Meters

 

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