voltagesurge Posted December 9, 2019 Share Posted December 9, 2019 I am trying to obtain ADC voltage readings at a rate of 10kHz with a resolution of 12 bits or more. This is to be done with a portable, small device, such as a microcontroller with a small power bank attached to it. I would like to be able to use this with 7 data channels, and if possible even up to 24 channels. I have been looking at microcontrollers to do the job, but I'm stuggling to find a suitable one (or maybe I just need guidance on how to use them properly). 7 channels of 12 bit data is 7*1.5 bytes = 10.5 bytes. 10kHz --> 105kb/s of data storage. Ideally, at least 20s of data could be stored at this rate before a short interval and then repeat. The open logger looks like it might do the job: https://store.digilentinc.com/openlogger-high-resolution-portable-data-logger/ it claims up to 500kHz sampling rate, and as it can have an SD card, I guess it would be able to do this for a long time. Is the open logger the right tool for the job? I've been looking at using micro-contollers such as arudinos and Teensys. I am a beginner at coding, so bear that in mind when answering the question. Would the open logger be able to do 8 channel, 10kHz data aquisition for at least 20s before stopping and starting again? - this is the most important question Also, would it be able to do this completely portably and not attached to a computer (or anything else apart from a power source)? Another thing is that this signal will probably need to have some gain and filters applied to it but I think I might make a different thread about that. I guess amplifying the signal I'm measuring before going to a data logger shouldn't be a problem right? Link to comment Share on other sites More sharing options...
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