Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
03/30/06 12:45
Read: times


 
#113404 - Quite simple
Responding to: ???'s previous message
Suresh said:
Then could you tell me how the average of succeding readings would be taken?

Quite simple! Use the results of a series of togglings. Each high and low toggling gives you a Ucont,ss and Usig,ss reading. The next high and low toggling again gives you a Ucont,ss and Usig,ss reading. And so on. Now take the average of these readings.

Suresh said:
If what i have stated could be a complete definition (of VCR and DCR), then i would like to know whether it could be calculated using our circuit or not?

Don't make the second step before the first! First you must have a methode which reliably measures the contact resistance. Then you can think about how long you measure or how often.

Kai

List of 42 messages in thread
TopicAuthorDate
Measuring CR of Reed Switches.            01/01/70 00:00      
   Contact resistance?            01/01/70 00:00      
   Correction : Sorry its 10mV to 2500mV            01/01/70 00:00      
   Voltage or current, pick one            01/01/70 00:00      
      I can choose Test current as 10mA            01/01/70 00:00      
         typical constact resistance ?            01/01/70 00:00      
      yes, but            01/01/70 00:00      
         No CR when closed?            01/01/70 00:00      
            If this was possible, you would not need            01/01/70 00:00      
               current source with series resistor at            01/01/70 00:00      
                  Yes            01/01/70 00:00      
                  constant current source            01/01/70 00:00      
                  V=IR            01/01/70 00:00      
                     Specs & Description            01/01/70 00:00      
                  resistor ?            01/01/70 00:00      
                     Current source circuit for CR measuremen            01/01/70 00:00      
                        Why not using...            01/01/70 00:00      
                        Kind of            01/01/70 00:00      
                           And...            01/01/70 00:00      
                              7805 and get 10mA and 100mA            01/01/70 00:00      
                              reply - thermo-potentials            01/01/70 00:00      
                                 since you work for the manufacturer            01/01/70 00:00      
                                 Chopper            01/01/70 00:00      
                                    Chopper schematic            01/01/70 00:00      
                                       Thanks very much Kai.            01/01/70 00:00      
                                       Reply : Chopper Schematic            01/01/70 00:00      
                                          Answers            01/01/70 00:00      
                                             what about a chopper stabilized op-amp?            01/01/70 00:00      
                                                Yur.            01/01/70 00:00      
                                                Yes, but...            01/01/70 00:00      
                                             AC components , VCR, DCR            01/01/70 00:00      
                                                Answers            01/01/70 00:00      
                                                   Demodulation?            01/01/70 00:00      
                                                      This would be the Lock-in scheme            01/01/70 00:00      
                                                   Average Value, VCR & DCR Calculation            01/01/70 00:00      
                                                      Quite simple            01/01/70 00:00      
                                             Analysis for Usig o/p            01/01/70 00:00      
                                                Answers            01/01/70 00:00      
                                                   I thank you very much Kai            01/01/70 00:00      
                                                      Test Condition: 10mA, 50mV            01/01/70 00:00      
                                                         Switching condition            01/01/70 00:00      
   Remember Ohm's law?            01/01/70 00:00      

Back to Subject List