Digitial Inclinometer Data

[rajbrades]

I'm new to the forum and am not sure if this is the right place to post.

I'm looking to develop a biofeedback unit with two digital inclinometers. One will measure the pelvic level on a human subject and the other the should level. The purpose is for a NUCCA chiropractor to gain feedback on his body position during an adjustment. It is essential that the shoulder and pelvis are coplanar.
Therefore, what I'm looking for a way to take the readout from each of these inclinometers, in degrees from horizontal, and wirelessly send the signals to a simple interface, LCD or tablet/phone within the visual field of the doctor.

If anyone can point me in the right direction it would be appreciated. I would need technical assistance and possibly subcontract for a build.

Thanks,
Ryan

 

[barry]

Does this really need to be wireless? There are numerous (I mean LOTS and LOTS) general-purpose boards out there that could be programmed to perform this task, but adding the necessity of transmitters/receivers rather than wires complicates this a bit.

 

[rajbrades]

For training without patients it would not be necessary to be wireless. As a first model a wired model would be OK. However, the ultimate goal is to be able to wear the sensors throughout the day with patients and therefore it would need to be wireless.

 

[rajbrades]

Barry, any further information on building a wired prototype would be fantastic. Thanks

 

[barry]

Just as an example, something like this would work great as a demo. It's got Analog-digital converter, LCD display, etc. About US$99. If you just do an internet search for "development boards" you'll find lots of options like this. Also, FPGA and microprocessor mfrs websites have lots of boards. All you(or someone you contract) would have to do is write some code for the microprocessor, and maybe create a simple interface circuit for your inclinometers, depending on what their output looks like.

 

[rajbrades]

awesome! any recommendations on an economical dual axis inclinometer?

 

[barry]

Do you have any specification? Accuracy? Response time? Resolution?

But there's this: https://www.analog.com/static/imported-files/data_sheets/ADIS16209.pdf

It's a digital output, so you don't even need an adc. About US$60 each, but I'm sure there are less expensive devices out there...