Proximity Sensors in Metal Detector gate

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Discussion Overview

The discussion centers around the use of inductive proximity sensors in metal detector gates, specifically addressing the limitations of their detection range and exploring potential alternatives or methods to enhance their effectiveness.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Faraz Nizamani expresses a desire to increase the range of inductive proximity sensors, which is typically under 50mm (2 inches), and asks for alternative detection methods for metal.
  • One participant questions whether Faraz is referring to a walk-through metal detector, suggesting a specific application context.
  • Another participant inquires if the inductive sensor is intended to detect vehicles, indicating a different application of inductive sensors.

Areas of Agreement / Disagreement

There is no consensus on the best approach to enhance the range of inductive proximity sensors or on the specific application being discussed, as participants have raised different interpretations of the intended use.

Contextual Notes

The discussion lacks clarity on the specific requirements for the metal detection application and the assumptions regarding the types of sensors being considered.

faraznizamani
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I want to use an "inductive proximity sensor" for metal detector gate, but the problem is its range is (generally) under 50mm (2 inches), is there any way I can increase its range?
or is there any alternate sensor or way to detect the metal ?


Thank you.

Faraz Nizamani
 
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faraznizamani said:
I want to use an "inductive proximity sensor" for metal detector gate, but the problem is its range is (generally) under 50mm (2 inches), is there any way I can increase its range?
or is there any alternate sensor or way to detect the metal ?


Thank you.

Faraz Nizamani

Do you mean a walk-through metal detector, like those used at courthouses and airports?

http://science.howstuffworks.com/airport-security3.htm

.
 
Do you mean an inductive sensor to tell when a vehicle is overhead? They sale those to apartment complexes and for traffic light controllers.
 
@berkeman: Yes .. a walk-through metal detector
 

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