Diameters in the range 0.02 to 11.0 mm may be measured. As the object enters the laser beam it blocks a portion of the beam from reaching the detector. The reduction in the amplitude of the detector signal is used to calculate the diameter of the object. Hole diameters may be measured in a similar way. The related LDM laser position sensor can be used to locate the position of an object perpendicular to the beam, e.g. a drill bit on a production line.
Tristate outputs allow several sensors to be linked together for additional versatility.
The new LPM series of laser position monitors from Laser Components allows the position of an object perpendicular to the laser beam to be determined quickly and accurately. The transmitter and receiver are separate units and may be arranged in any required configuration. Resolution of 1 m m is possible. The electronics compare the expected position with actual position and read out the result and any deviation. The device can be easily calibrated by the operator to exactly match his application.