Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision		Previous revision
daq-and-datalogging:documents:usb-2408-usb-2416-max-frequency-calculation [2023/06/13 16:00] – created Scandiwebdaq-and-datalogging:documents:usb-2408-usb-2416-max-frequency-calculation [2023/07/28 00:58] (current) – Arthur Brown
Line 1: Line 1:
-====== How to calculate the maximum frequency of a USB-2408 or USB-2416 in your program. ======+====== How to Calculate the Maximum Frequency of a USB-2408 or USB-2416 in Your Program. ======
  
 The USB-2408 Series and USB-2416 Series boards 24 bit data acquisition devices.  They can accurately measure voltages and Thermocouple signals on the same device, configured as adjacent channels if need be.  To get the most accurate reading from your thermocouples, you need to set the "Data Rate" to a low frequency such as 60 Hz.  Per the User's manual, to calculate the maximum sampling frequency, you have to use the equation: The USB-2408 Series and USB-2416 Series boards 24 bit data acquisition devices.  They can accurately measure voltages and Thermocouple signals on the same device, configured as adjacent channels if need be.  To get the most accurate reading from your thermocouples, you need to set the "Data Rate" to a low frequency such as 60 Hz.  Per the User's manual, to calculate the maximum sampling frequency, you have to use the equation:
  
-{{https://files.digilent.com/resources/measurement-computing/Reference Images/2416_08 throughput.png?417x275}}+{{https://files.digilent.com/reference-images/2416_08 throughput.png?417x275}}
  
 Using the top equation with 1 channel, set to thermocouple, with a data rate of 60 hz, the maximum single channel throughput is 57.78Hz (samples per second).  If you run through these calculations, you can see the more channels you have, the slower the sample rate.  Using the top equation with 1 channel, set to thermocouple, with a data rate of 60 hz, the maximum single channel throughput is 57.78Hz (samples per second).  If you run through these calculations, you can see the more channels you have, the slower the sample rate.