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Level Measurement |
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Laser Level Technology |
 The
Laser Liquid Level Instrument generates an optical pulse. This pulse
is reflected off an object or liquid and returns to the system receiver.
A high-speed counter measures the time of flight from the start
pulse to the return pulse. This time is used to determine the distance
from the sensor to the material.
Laser Level Sensors are mostly used for measuring levels of bulk
solids and opaque liquids. 80% of these units are used for dry
solids, including plastics such as PE, PP, PVC, and EPS. They
employ Class I lasers, which are safe for the human eye. As most
devices use laser of wavelength 1 micron, as opposed to radar's
wavelength of 10,000+ microns, it reportedly has virtually no
beam divergence, which means no false echoes, and easily measures
surfaces at an angle. The narrow laser beam can pass through screens.
It can traverse distances of up to 120 meters.
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Laser
Level
Technology Advantages:
Laser
Level
Technology Disadvantages:
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