Writing a VI for an accelerometer

[SmoothBrain]

I'm currently trying to write a LabVIEW VI for an arcade style punching bag machine. I want to take the voltage reading from a Triple Axis Accelerometer Breakout - ADXL335 and turn it into a force reading. I'm fairly new to LabVIEW and I don't even know where to start. Could someone help?

[GerdW]

Hi Brain,

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@SmoothBrain wrote:

I'm fairly new to LabVIEW and I don't even know where to start. Could someone help?

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Did you notice those "Training resources" offered at the top of the LabVIEW board?

Did you explore the example finder in LabVIEW?

[Bob_Schor]

Sure.  I think in the 20-teens (maybe 2017?) I encountered these accelerometers which senior BME students were using as accelerometers to measure muscle twitches.  Here are some ideas/issues to consider (which my students didn't think of, to my shock and dismay):

• Based on the specs for this device, how do you calibrate the three axes?  Note that gain and bias values for the three axes have a large "uncertainty".
• How do you calibrate all three axes at the same time (preferably without a very accurate 3-D positioner to turn it through precise angles).
• You want to measure Force.  The Accelerometer gives you acceleration.  Are these the same?  How are they related (if at all)?

Bob Schor

[Kyle97330]

That device looks like it just outputs voltage based on the signals it gets.  Do you have some kind of voltage-detecting hardware to hook up to it?  A NI DAQ of some kind maybe, since you're asking here?