fibre_walk_project_code/scripts/transients_without_amplification.py
2024-05-21 17:03:52 -04:00

36 lines
1 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import sys
from ringfit import data
import matplotlib.pyplot as plt
from ringfit.data import *
from ringfit.plotting import *
from ringfit.fit import *
path = "/home/hiro/Documents/org/roam/code/fitting_ringdown/data/08_05_24/characterization_first"
scan = ScanData.from_dir(path)
# %% interactive
STEPS = [25, 27, 28]
fig = plt.figure("interactive")
fig.clf()
ax, *axs = fig.subplots(1, len(STEPS) + 1)
plot_scan(
scan, smoothe_output=10 ** (-6), normalize=True, laser=True, steps=True, ax=ax
)
# %% plot steps
for ax, STEP in zip(axs, STEPS):
data = scan.for_step(step=STEP).smoothed(10**-6)
t, o, params, cov, scaled = fit_transient(data.time, data.output)
ax.cla()
ax.plot(t, o)
ax.plot(t, transient_model(t, *params))
ax.set_title(
f"Transient {STEP}, γ={1/scaled[1] * 10**6:.2f}μs ({cov[1]/scaled[1]**2 * 10**6:.2f}μs)\n ω/2π={scaled[0] / (2*np.pi * 10**3):.5f}kHz\n step={STEP}"
)
freq_unit = params[1] / scaled[1]
ax.plot(t, np.sin(2 * np.pi * 4 * 10**4 * t * freq_unit), alpha=0.1)