src.acoustools.Constants

 1pi = 3.1415926535
 2'''pi to 10 decimal places'''
 3R = .001 
 4'''Radius of particle'''
 5V = 4/3 * pi * R**3
 6'''Volume of Particle'''
 7c_0 = 343
 8'''Speed of sound in air'''
 9p_0 = 1.2
10'''Density of air'''
11c_p = 1052
12'''Speed of sound in EPS particle'''
13p_p = 29.36 
14'''density of EPS particle, From `Holographic acoustic elements for manipulation of levitated objects`'''
15f = 40000
16'''Frequency of 40KHz sound'''
17wavelength = c_0 / f #0.008575
18'''Wavelength of 40KHz sound'''
19k = 2*pi / wavelength #732.7329804081634
20'''Wavenumber of 40KHz sound'''
21k_eps= k + 0.01j*k
22'''Damped Wavenumber of 40KHz sound'''
23# radius=0.005 
24radius = 0.0045
25'''Radius of transducer'''
26# P_ref = 8.02 #old value
27P_ref = 0.17*20 #3.4
28# P_ref = 5.9983 #Value from Zak
29'''Reference pressure for transducers'''
30angular_frequency = f * 2 * pi 
31'''Angular Frequency of 40kHz sound'''