%cat 0Source_Citation.txt
%matplotlib inline
# %matplotlib notebook # for interactive
For high dpi displays.
%config InlineBackend.figure_format = 'retina'
This example compares pressure calculated from pytheos
and original publication for the platinum scale by Jamieson 1983.
import matplotlib.pyplot as plt
import numpy as np
from uncertainties import unumpy as unp
import pytheos as eos
eta = np.linspace(0., 0.18, 37)
jamieson_pt = eos.platinum.Jamieson1982()
jamieson_pt.print_equations()
jamieson_pt.print_parameters()
v0 = 60.421757141035926
jamieson_pt.three_r
v = v0 * (1.-eta)
temp = 1500.
p = jamieson_pt.cal_p(v, temp * np.ones_like(v))
print('for T = ', temp)
for eta_i, p_i in zip(eta, p):
print("{0: .3f} {1: .2f}".format(eta_i, p_i))
v = jamieson_pt.cal_v(p, temp * np.ones_like(p), min_strain=0.6)
print(1.-(v/v0))