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Reading USB detector data using NI DAQ card.

I have a NAI detector which interfaces with my computer using USB port . The detector directly plots the data into its own desktop application. Although the app is working fine but i need the raw detector data in an excel file which its app doesn't support. i want to access that data using my NI DAQ PCI 6034e and Labview  and save it into a file.

 

As its a very old detector therefore i don't have the model, make or exact communication protocol of that detector but i guess it uses micro usb communication.

i have searched the internet and haven't found anything regarding this scenario. any sort of help would be much appreciated.

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DAQmx is for interfacing to analog and digital signals, not implementing any form of USB protocol or whatever. Micro-USB is simply the connector and says very little about how the USB communication happens (well it says that the connection is definitely not faster than USB-2 but that has very little to do about the protocol).

 

Unless the sensor has a secondary connector besides the USB one, where it provides its internal signals as analog voltage or current, there really is no reasonable way to try to use your DAQ card to talk to this sensor. That would be like trying to use a truck to drive over a light rail or similar.

 

If you can't dig up the make and model of the sensor it is in fact very unlikely that you can use it with anything but the application it came with. Even if you know the exact model it may be still a dead end if the sensor only has an USB interface. Many such devices use a proprietary communication protocol over the USB connection and their manufacturer will simply ignore any request for more information about this protocol because releasing that information would cause extra technical support requests, which the manufacturer does not want to do.

Rolf Kalbermatter
My Blog
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If you have the physical detector and its software, there must be some way to figure out the manufacturer and model number.  

 

See if there's an ID plate on the detector showing its model and serial#.

See if there's a Help > About option in the software menu.  Sometimes that will show valuable info.

 

Once you have that, maybe you can find and download a manual, or even an API to the software.

LabVIEW Pro Dev & Measurement Studio Pro (VS Pro) 2019
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