OPT3101: Distance measurement performance issues.

Meiling Jin

Part Number: OPT3101

HELLOW

We have multiple units of the same product, and we are monitoring their amplitudes to be consistent. However, there are significant differences in the fluctuation of distance measurements. What could be the reason for this?

Thank YOU

over 1 year ago

0 Gordon Varney over 1 year ago

TI__Genius 9380 points

Meiling.

Can you define "significant differences in the fluctuation of distance measurements"? What do you mean by this. How different are they in mm? What is the total distance to the target when you have the fluctuations of distance?

0 Meiling Jin over 1 year ago in reply to Gordon Varney

Prodigy 170 points

Gordon.

At 4m, the distance fluctuation is about ±25mm. At 8m, the distance fluctuation is about ±85mm

0 Gordon Varney over 1 year ago in reply to Meiling Jin

TI__Genius 9380 points

Meiling,

At 4m having a +/-25mm fluctuation is less than 1% error. At 8m having a +/-85mm fluctuation is right at 1%. Overall the accuracy is very good. If the fluctuation is causing an issue then increase the averaging in the OPOT3101. typically 32 or 64 is a good averaging value. Increase sample rate to overcome slow averaging response. It looks like you have a good system.

0 Meiling Jin over 1 year ago in reply to Gordon Varney

Prodigy 170 points

Gordon，

1. I have set the average value and the parameters are set as follows.

2.How to select the parameters of Auto HDR Scale and H Threshold?

0 Gordon Varney over 1 year ago in reply to Meiling Jin

TI__Genius 9380 points

Meiling,

Both of these settings are for advanced use. Almost always they should be set to the default settings. I have never seen a user that needed to change these settings.

Super HDR ratio should be 64

H Threshold should be 26000

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OPT3101: Distance measurement performance issues.