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artiq/examples/flopping_f_simulation.py

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2015-01-13 19:12:35 +08:00
from math import sqrt, cos, pi
import time
from artiq import *
def model(x, F0=1500, A=80, B=40, t=0.02, tpi=0.03):
return A+(B-A)/2/(4*tpi**2*(x-F0)**2+1)*(1-cos(pi*t/tpi*sqrt(4*tpi**2*(x-F0)**2+1)))
class FloppingF(AutoDB):
class DBKeys:
implicit_core = False
npoints = Argument(100)
min_freq = Argument(1000)
max_freq = Argument(2000)
frequency = Result()
brightness = Result()
flopping_freq = Parameter()
@staticmethod
def realtime_results():
return {
("frequency", "brightness"): "xy"
}
def run(self):
for i in range(self.npoints):
frequency = (self.max_freq-self.min_freq)*i/(self.npoints - 1) + self.min_freq
brightness = model(frequency)
self.frequency.append(frequency)
self.brightness.append(brightness)
time.sleep(0.1)
self.analyze()
def analyze(self):
min_f = self.frequency.read[0]
min_b = self.brightness.read[0]
for f, b in zip(self.frequency.read, self.brightness.read):
if b < min_b:
min_f, min_b = f, b
self.flopping_freq = min_f