MSP430FR6989: LC sensor extended scan interface kit MSP-EXP430FR6989 at high temperature.

LOC NGUYEN

Part Number: MSP430FR6989
Other Parts Discussed in Thread: MSP-EXP430FR6989

Hi all,

I tried to test the LC sensor with kit MSP-EXP430FR6989, it works well at room temperature, but when I tested it at above 60 o C, it was wrong (the value is less than the true value).

Can you show me the issues?

over 2 years ago

0 Johnson He over 2 years ago

TI__Mastermind 28426 points

Hi LOC,

Which LC sensor? Could you share more details about your project?

Thanks!

Best Regards

Johnson

0 LOC NGUYEN over 2 years ago in reply to Johnson He

Prodigy 105 points

Hi Johnson,

I used 3 coil 235 uH with capacitor 470pF.

The project detail: water meter.

0 Johnson He over 2 years ago in reply to LOC NGUYEN

TI__Mastermind 28426 points

Hi LOC,

Have you try to capture the waveform for ESICHx pin?

Thanks!

Best Regards

Johnson

0 LOC NGUYEN over 2 years ago in reply to Johnson He

Prodigy 105 points

Hi Johnson,

I only capture the waveform for ESICHx pin at room temperature.

Thanks!

Best Regards

0 Johnson He over 2 years ago in reply to LOC NGUYEN

TI__Mastermind 28426 points

Hi LOC,

If you can capture some waveform in 60C will be better.

I think there are should have some different between 25C and 60C, those different maybe cause metering error if parameter is not suitable.

Thanks!

Best Regards

Johnson

0 LOC NGUYEN over 2 years ago in reply to Johnson He

Prodigy 105 points

Hi Johnson,

Thank you for your information, i think i will recalib when the temperature is at 60 oC.

0 Johnson He over 2 years ago in reply to LOC NGUYEN

TI__Mastermind 28426 points

Hi LOC,

Agree, I think this is a good option.

Thanks!

Best Regards

Johnson

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MSP430FR6989: LC sensor extended scan interface kit MSP-EXP430FR6989 at high temperature.