TLx493D calibration formula and flow?

[rsiigod]

Hi everyone
Good day~

I want to develop a linear-type product.
Could I get the calibration formula and process used in the GUI?

Furthermore, how do I get RPM or distance from Bx, By, Bz?
I can't get this information from this widget.

Regards,
Ade

[Yashraj_P]

Hi @rsiigod,

1. The calibration is done in three parts:

1. First the, range of By[min, max] is determined while moving the magnet from left to right in the Linear Slider 2Go.
2. Second we get the reference value of  Bx, By, Bz when the magnet is at 0mm position. 
3. Now we set the offset in the GUI, by entering the position on the slider where its predicting 0.

After this the GUI is able to predict the correct position of the magnet on the slider.

You can visit the 3D Magnetic sensors page and watch the video on 3D magnetic sensor linear slider adapter for sensor 2GO Kits
Note: The video is prior to development of the current GUI, but the idea is still same.

2.  The RPM is determined by the distance of the trigger. The same idea is mentioned in the video titled Power Drill Trigger for 3D Hall 2GO kits and Shield2Go on the above mentioned webpage.

The logic of linear distance measurement from Bx, By, Bz can be further understood from the Application Note Linear multi-point position detection with a 3D magnetic sensor .

The example codes can be also be viewed,  in the Infineon's Github repository named TLE493D-3DMagnetic-Sensor.

Thanks and Regards,
Yashraj

[rsiigod]

Hi @Yashraj_P 

Thanks for your reply. 

There seems to be no sample code for calibration, in the Infineon's Github repository named TLE493D-3DMagnetic-Sensor. 

And the GUI Exe Examples Hyperlink not working...

Will there be an updated GUI example code release?

Regards,
Ade

[Yashraj_P · Accepted solution]

Hi @rsiigod ,

1. For calibration method, please see the example code DirIndicator.ino present in link here. 

2. We have communicated the same to our internal team.

Thanks for pointing out the issue.

Best regards,
Yashraj

[Yashraj_P]

Hi @rsiigod ,

Following up on previous reply.

The GUI Exe Examples have been discontinued since the development of the GUI software TLx493DMS2Go, which you are already using to evaluate your EVK.

We are only hosting Code Examples, using which you can start building your product.
If you need further assistance on that, please reach out.

Thanks and best regards,
Yashraj

[rsiigod]

Hi @Yashraj_P 

Thanks for your help~