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Joseph Hebert
12/18/11 16:17
Read: 348 times
Okemah, Ok
United States


 
Msg Score: +1
 +1 Informative
#185149 - shock sensors
Responding to: Jecksons Ben's previous message
Okay Jecksons,

I'm sorry I couldn't be of more help to you. Nonetheless, I stand by my fundamental advice that you abandon the idea of a shock sensor. In order for one to be reliable it would have to have an operational zone in which it would definitely trip at even the most infinitesimal movement if someone tried to move it, but be insensitive to even the slightest of movements associated with normal, non-threatening environmental disturbances (e.g. someone bumping into the table or a truck driving by outside). But since all of these infinitesimal movements are identical, save the fact that in the first case someone is touching the device, you're basically saying that it needs to only react to someone touching it, not to the slight tremors that a shock sensor would detect.

Now you could use some sort of capacitive detection, like one of those lamps (or that new faucet) that you turn on just by touching it. I've used such sensors to secure safes in the past. It does take some effort to keep them from being too sensitive, but unlike shock sensors (where it's literally and logically impossible) it can be done.

Good luck,

Joe

List of 28 messages in thread
TopicAuthorDate
Freeze..thief protection      JecksonS Ben      12/10/11 07:27      
   Alarm Sensors      Joseph Hebert      12/10/11 11:06      
      Earth magnetic field sensor      Bert Van Den Berg      12/19/11 10:36      
         inexpensive solid state magnetic field      JecksonS Ben      12/20/11 01:36      
         It means..      JecksonS Ben      12/28/11 04:27      
            ???      Per Westermark      12/28/11 06:11      
               same      JecksonS Ben      12/31/11 04:12      
   Too vague!      Andy Neil      12/10/11 12:04      
      Cost - and what type of protection/detection      Per Westermark      12/10/11 13:21      
      How low is "low" cost?      Andy Neil      12/11/11 07:33      
         OK..great..maybe Links      JecksonS Ben      12/11/11 23:41      
            Still no idea what you actually want      Andy Neil      12/12/11 14:12      
      What exactly?      JecksonS Ben      12/12/11 23:53      
         Bounce        Per Westermark      12/13/11 00:59      
            OK      JecksonS Ben      12/14/11 00:32      
         If it's networked      Andy Neil      12/14/11 13:43      
            hard to handle      JecksonS Ben      12/15/11 01:19      
               Come on ... it requires a number        Richard Erlacher      12/15/11 08:42      
                  numbers      JecksonS Ben      12/16/11 01:02      
            cost and reliability        Joseph Hebert      12/16/11 06:36      
               cost      JecksonS Ben      12/17/11 03:44      
                  Does that mean you don't know what your price target it?      Richard Erlacher      12/17/11 08:57      
                  soft base      Joseph Hebert      12/17/11 10:11      
                     manufacture products      JecksonS Ben      12/18/11 03:07      
                        shock sensors        Joseph Hebert      12/18/11 16:17      
                           advice      JecksonS Ben      12/19/11 00:49      
                              Capacitive solutions can be projective      Per Westermark      12/19/11 01:00      
                                 metal..      JecksonS Ben      12/19/11 01:09      

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