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Proximity technology

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Proximity technology can measure vacuum or pressure in containers by

measuring the lid deflection.

 

How It Works


Proximity technology measures vacuum or pressure in containers with metal closures by 

measuring the lid deflection. Proximity technology uses non-contact online inspection method, 

when the container passes the sensor, the sensor produces a continuous magnetic field that 

monitors the distance between the sensor and the metal lid. The continuous signal is digitally 

sampled to produce a merit value of the lid profile. The profile value is then compared to 

user-set limits. Containers with lid deflection outside the limits will be rejected.


                                  

Proximity Sensor