15.03.23
From mn.fysikk.laglivlab
Present: Lasse, Morten, Elizabeth, Catherine
Results (rotations per 10sec):
Each row for a clip is a different cell.
| 10kHz | 100kHz | 200kHz | 300kHz | 500kHz | 1MHz | 5Mhz | 10MHz | 20MHz | 30MHz | 40MHz | 50MHz |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.25 | 3 | 3.5 | 4.25 | 3.5 | 2.75 | 0.25 | 0.25 | -0.375 | -0.625 | -1 | -1.25 |
| 0.125 | 2.25 | 2.25 | 3.25 | 3 | 2 | 1.125 | 0.375 | -0.25 | -0.625 | -1 | -1 |
| 0.125 | 2 | 3 | 3 | 3 | 3.5 | 0.625 | 0.25 | -0.25 | -0.5 | -0.75 | -0.75 |
Observations:
- The rotation chamber surface is really messy, cell remains after 4-5 wash cycles with isopropanol and ultrasound bath. We should consider improving cleaning protocol, with for instance compressed air/nitrogen or something.
- Agrees fairly well in peak amplitude and peak frequency and turning point as seen in the 10.03.23 experiment.
