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???
12/19/11 08:00
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#185155 - Capacitive solutions can be projective
Responding to: ???'s previous message
Jecksons Ben said:
There simple homemade capacitive but made the cost of "box" high cost again,cause all entire surface from "conductor" plate.

If the box is made of metal, then all of the box will be handled without any surface sensor.

If the box is of plastic but contains metal, then the capacitive solution can be configured to project a distance from that metal - so it can detect events outside of the plastic box.

In the end, it's more a question of adaptive logic to know where the alarm is "on" and when it is "off".

List of 28 messages in thread
TopicAuthorDate
Freeze..thief protection            01/01/70 00:00      
   Alarm Sensors            01/01/70 00:00      
      Earth magnetic field sensor            01/01/70 00:00      
         inexpensive solid state magnetic field            01/01/70 00:00      
         It means..            01/01/70 00:00      
            ???            01/01/70 00:00      
               same            01/01/70 00:00      
   Too vague!            01/01/70 00:00      
      Cost - and what type of protection/detection            01/01/70 00:00      
      How low is "low" cost?            01/01/70 00:00      
         OK..great..maybe Links            01/01/70 00:00      
            Still no idea what you actually want            01/01/70 00:00      
      What exactly?            01/01/70 00:00      
         Bounce            01/01/70 00:00      
            OK            01/01/70 00:00      
         If it's networked            01/01/70 00:00      
            hard to handle            01/01/70 00:00      
               Come on ... it requires a number            01/01/70 00:00      
                  numbers            01/01/70 00:00      
            cost and reliability            01/01/70 00:00      
               cost            01/01/70 00:00      
                  Does that mean you don't know what your price target it?            01/01/70 00:00      
                  soft base            01/01/70 00:00      
                     manufacture products            01/01/70 00:00      
                        shock sensors            01/01/70 00:00      
                           advice            01/01/70 00:00      
                              Capacitive solutions can be projective            01/01/70 00:00      
                                 metal..            01/01/70 00:00      

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