Set-Up test

on Monday, November 9th, 2020 11:03 | by

Wtb
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New review of the shiming-setup

on Monday, October 26th, 2020 1:56 | by

Recent wtb test

There often seems to be a strong preference for a side. The laser was off.

Fly had a strong pref for left side, laser was off

Flies often seem to have a strong preferenc for a side. In the imiage below the top fly was punished for left torque and survived, the fly below was punished for the right torque side and died.

Trails with drift

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Testing of the repaired torque-meter

on Monday, October 12th, 2020 12:49 | by

I’ve started again to test the set-up after repairs. It does not seem to be perfectly stable ,with some drift in the positive direction. Most often, it seems that the amount of drifting would be fine for measuring.

Therefor I tried measuring some flies. A problem now is a very negative baseline, when the fly stops flying. Also the response for left and right seems not to be equal.

So now I’m trying to get the line close to 0, so that I have conclusive results if the set-up if usable at the current state.

2 examples of drift:

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Recent experiments

on Monday, June 22nd, 2020 1:52 | by

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Cut off for drift

on Monday, June 15th, 2020 1:56 | by

What magnitude of drift is still ok?

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Results of new repairs

on Monday, June 8th, 2020 1:40 | by

No laser, just fly trace
Standart experiment

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Test of set-up after repair.

on Monday, May 18th, 2020 8:51 | by

The signal is drifting again. Also adding a spacer between clamp and device is not solving it, but making the signal more noisy.

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