Testing new boards 20180217a

Objective

The objective of this experiment is to test the software issues with the kernel module.

  • Series are in the form ZXY where X is the position of the pulser green jumper (on pic below), and Y the yellow jumper, and Z is the series (here A, and B).
  • Series A are with the new pulser (macrofab, alt.tbo v2)
  • Series B with the old (ChinaCo, alt.tbo v1).

Processing to be done through a jupyter notebook, images stored in a repo, and raw data in another. Pulser code on RPi side is available too where pulses are driven by going low on control pins, and the other pulser code does the opposite.

Images autotagged.

Setup

There is approximately 27mm of water before the reflector on the piezo. That's an echo which has to travel 2x27mm = 54mm, at 1500m/s. We should see at peak at around 36us, and, if a second reflection occurs, at 72us.

Results

Better resolution can be achieved when the pulser code is cleaned from its errors.. Namely with a better control of the controling variables.

Before the new code

With the new code

Details of the lines

Raw lines

Once filtered

Remaining issues

It seems trig happens when line goes low:

Going low at t0 of pulse

Going low at first up, then down, so delayed

Classical pulses off, Pon going low

Automated list of supporting files for the experiment 20180217a

List of files

md

jupyter

python

Modules

Images of the Experiment

Raw images

Cleaned line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Raw line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Raw line from the 20180217a experiment

Cleaned line from the 20180217a experiment

Others

Map of the DATA file from the 20180217a experiment (category: graph).

Map of the DATA file from the 20180217a experiment (category: graph).

Spectrum of the DATA file from the 20180217a experiment (category: graph).

Map of the DATA file from the 20180217a experiment (category: graph).

Map of the DATA file from the 20180217a experiment (category: graph).

Spectrum of the DATA file from the 20180217a experiment (category: graph).

Map of the DATA file from the 20180217a experiment (category: graph).

Spectrum of the DATA file from the 20180217a experiment (category: graph).

Spectrum of the DATA file from the 20180217a experiment (category: graph).

Spectrum of the DATA file from the 20180217a experiment (category: graph).

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