The principle of operation of the microwave barrier level switch
Non-contact point surface detection in solids
Microwave surface switch (microwave switch switch) In many cases where contact methods are limited, microwave barriers are a good solution. They avoid scratching, show the point surface, solve positioning and counting tasks, provide non-contact measurements, and are therefore not wear-free. Common products to be measured are wood chips, paper and cardboard chips, lime, pebbles, sand or even complete bags and boxes. The microwave switch detects the upper and lower limits of silos, hoppers, etc.… The microwave system enables non-contact detection and easy maintenance. In addition, installation locations can be easily decided because detection works when blocking material blocks a straight line between sender and receiver
Principle of operation
Microwaves can pass through walls made of low-strength insulation such as plastic, glass, dead brick, wood and ceramic. The microwave barrier switch can detect the presence or absence of material inside containers made of low-density material without making contact with the actual material inside. Microwave absorption is used to monitor limit values in microwave barriers. The microwave transmitter and receiver form a radiation barrier. A narrow beam from the tank is placed on the desired surface
As soon as the fluid enters the radiation area, the microwave signal is attenuated so that only a small part of the receiver reaches. This is known and used to stimulate switching signals
This is basically true
- High density = high damping
- Low density = low damping
Advantages :
- Adjustable sensitivity
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Installed flash measurement, no contact
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No wear and tear and long life maintenance
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Easy installation
Application :

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