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???
03/18/07 18:40
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 		 #135208 - Lock-in uses AC excitation
Responding to: ???'s previous message
Mohamed said:
Do you mean that AC excitation is more good than lock-in amplifier ??

Lock-in methode uses AC excitation.

Google for "Lock-in" a bit...

Kai

List of 80 messages in thread
TopicAuthorDate
Load Cell            01/01/70 00:00      
   24 bits            01/01/70 00:00      
   Load Cells            01/01/70 00:00      
      Alex            01/01/70 00:00      
         Alexandria library            01/01/70 00:00      
         All Wlcome in alex            01/01/70 00:00      
      opamp            01/01/70 00:00      
         re: opAmp            01/01/70 00:00      
            averaging how long? and noamp!            01/01/70 00:00      
            resume            01/01/70 00:00      
               resume opamps            01/01/70 00:00      
                  NO WAY            01/01/70 00:00      
               Already answered            01/01/70 00:00      
                  Really?            01/01/70 00:00      
                     Yes, really!            01/01/70 00:00      
                        not agree            01/01/70 00:00      
                           you are fully right            01/01/70 00:00      
                              why use opamp?            01/01/70 00:00      
                                 Too specific?            01/01/70 00:00      
                                    not too specific            01/01/70 00:00      
                           What the hell...            01/01/70 00:00      
                              nothing wrong, just old, dont be angry            01/01/70 00:00      
                                 But, what's wrong with "old"??            01/01/70 00:00      
                                    You should know that, Kai            01/01/70 00:00      
                                       shame for me,agree            01/01/70 00:00      
                                       How incredibly stupid to call a 1982's ...            01/01/70 00:00      
                                          were it only so well            01/01/70 00:00      
                                             You are sooo right...            01/01/70 00:00      
                                                Bob Pease            01/01/70 00:00      
                                                   I religously agree            01/01/70 00:00      
                                                   Pease = God?            01/01/70 00:00      
                                             I should add            01/01/70 00:00      
                                 AC Excitation            01/01/70 00:00      
                                    We Became 3 persons            01/01/70 00:00      
                                    AC excitation            01/01/70 00:00      
                                       100 nv ?            01/01/70 00:00      
                                       100 nv ?            01/01/70 00:00      
                                          100nV            01/01/70 00:00      
                                       Weighing lore            01/01/70 00:00      
                                          Looks exactly like VLF noise!            01/01/70 00:00      
                                             to: Kai Klaas            01/01/70 00:00      
                                                Lock-in uses AC excitation            01/01/70 00:00      
                                             AC Excitation            01/01/70 00:00      
                                                Artefacts            01/01/70 00:00      
                                          not 100nV            01/01/70 00:00      
                                             ADCs            01/01/70 00:00      
      probably?            01/01/70 00:00      
   Is "hysteresis" specified for your load cell?            01/01/70 00:00      
      Why dont you answer my question?            01/01/70 00:00      
         even nastier            01/01/70 00:00      
            Mechanical issues            01/01/70 00:00      
               Mech ?            01/01/70 00:00      
         i thought in that            01/01/70 00:00      
   to stefen and eric            01/01/70 00:00      
      And Load Cell type            01/01/70 00:00      
         send to me datasheet of loadcell            01/01/70 00:00      
   a load of stuff on loadcells            01/01/70 00:00      
   The Author            01/01/70 00:00      
      Variation            01/01/70 00:00      
         11bit from 24 bit            01/01/70 00:00      
         Davids answer woefully incomplete            01/01/70 00:00      
      "constant power supply of 15 mv" ???            01/01/70 00:00      
         kind of that power supply            01/01/70 00:00      
            bad experiment            01/01/70 00:00      
      another experiment            01/01/70 00:00      
         CS5532 comparison            01/01/70 00:00      
            30 kg to 3.5g is NOT 1:100,000 it is 1:8,000            01/01/70 00:00      
               yes and not            01/01/70 00:00      
               Erik            01/01/70 00:00      
                  David , what broadband he uses?            01/01/70 00:00      
                  there must be some misunderstanding here            01/01/70 00:00      
                     Simulator            01/01/70 00:00      
                        oh,            01/01/70 00:00      
      You misunderstood something!!            01/01/70 00:00      
         im sorry            01/01/70 00:00      
      Common mode input voltage range is violated!            01/01/70 00:00      
   Please modify your user profile,...            01/01/70 00:00      
      User profile            01/01/70 00:00      
         Haha...            01/01/70 00:00      
      ok I updated my profile            01/01/70 00:00      

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