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fridge_cycle_modified.py
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fridge_cycle_modified.py
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from __future__ import print_function
import numpy as np
import visa
import matplotlib
matplotlib.use('qt4agg')
import matplotlib.pyplot as plt
import time
import datetime
import os
import smtplib
from scipy import interpolate
#########################################################
# Program to cycle the Chase fridge #
#########################################################
RX202_lookup = np.loadtxt('RX-202A Mean Curve.tbl')#ADR
#RX202_lookup = np.loadtxt('RX-102A Mean Curve.tbl')# 300mK and 1K stages
RX202_interp = interpolate.interp1d(RX202_lookup[:,1], RX202_lookup[:,0],fill_value = 0.,bounds_error = False)
#test = np.float(RX202_interp(4000))
#RX202_temps = RX202_interp(-linear_bridge*1000)
lines = ['-','--','-.']
labels = ['4K P.T. ','50K HTS ','50K P.T. ','50K plate ','ADR rad shield','4He pump ','3He pump ','4He switch ','3He switch ','ADR switch ','4K-1K switch ','4K plate ','3He head ','4He head ','4K HTS ','ADR ','Head ADR switch']
colors = ['b','g','r','c','m','y','k']
plots = (0,1,2,3,5,6,7,8,9,10,11,12,13,14,15,16)
sleep_interval = 60. #seconds
Alarm = 0 # 0 for off 1 for on
Alarm_test = np.zeros(15) #
Alarm_base = np.ones(15)*100.# this is where you fill in your max temp values for the alarm
now = datetime.datetime.now()
date_str = str(now)[0:10]
file_prefix = "C:/Users/tycho/Desktop/White_Cryo_Code/Temps/" + date_str
file_suffix = ''
plt.figure(1,figsize = (19,8))
x = np.arange(-420,0)*1.
print(x[0],x[419])
y = np.ones((420,17))*-1
plt.title("Thermometry")
plt.xlabel("time (mins)")
plt.ylabel("Temperature (K)")
plt.ion()
plt.show()
#create a resourcemanager and see what instruments the computer can talk to
rm = visa.ResourceManager()
rm.list_resources()
#form connections to the two lakeshore temperature sensors available
lk218 = rm.open_resource('GPIB0::2::INSTR')
lk224 = rm.open_resource('GPIB0::12::INSTR')
lr750 = rm.open_resource('GPIB0::4::INSTR')
ag49 = rm.open_resource('GPIB0::3::INSTR') #power supply 3649 in the upper RH of Rack
ag47b = rm.open_resource('GPIB0::5::INSTR') #power supply 3647 on bottom row of power supplies
ag47t = rm.open_resource('GPIB0::15::INSTR') #power supply 3647 on top row of rack
#turn on the power supplys
ag49.write('OUTPut ON')
ag47b.write('OUTPut ON')
ag47t.write('OUTPut ON')
start = time.time() #define a start time
if os.path.isfile(file_prefix + '_temps.txt') == True:
file_suffix = '_'+str(datetime.datetime.now())[11:13]+'_'+str(datetime.datetime.now())[14:16]
f = open(file_prefix + file_suffix +'_fridge_cycle_temps.txt' ,'w') #open a file to write the temperatures to
i = 0
k = 0
finished = 0 #run until it looks like the fridge cycle has completed
try: #allows you to kill the loop with ctrl c
while finished == 0: #count the seconds since the start time, and sleep for 1 second between each count
now2 = time.time()
now = datetime.datetime.now()
if str(now)[0:10] != date_str: #if it is a new day start a new file
f.close()
date_str = str(now)[0:10]
file_prefix = "C:/Users/tycho/Desktop/White_Cryo_Code/Temps/" + date_str
file_suffix = ''
f = open(file_prefix + file_suffix +'_fridge_cycle_temps.txt' ,'w') #open a file to write the temperatures to
t = time.time()-start
x = np.roll(x,-1)
x[419] = t/60.
y = np.roll(y,-1,axis = 0)
plt.xlim(x[0],x[419])
plt.ylim(0.1,300)
y[419,0] = lk218_T1 = float(lk218.query('KRDG?1'))
#print(y[419,0],lk218_T1)
y[419,14] = lk218_T2 = float(lk218.query('KRDG?2'))
y[419,1] = lk218_T3 = float(lk218.query('KRDG?3'))
y[419,2] = lk218_T5 = float(lk218.query('KRDG?5'))
y[419,3] = lk218_T6 = float(lk218.query('KRDG?6'))
y[419,4] = lk218_T8 = float(lk218.query('KRDG?8'))
y[419,5] = lk224_TC2 = float(lk224.query('KRDG? C2'))
y[419,6] = lk224_TC3 = float(lk224.query('KRDG? C3'))
y[419,7] = lk224_TC4 = float(lk224.query('KRDG? C4'))
y[419,8] = lk224_TC5 = float(lk224.query('KRDG? C5'))
y[419,9] = lk224_TD2 = float(lk224.query('KRDG? D2'))
y[419,10] = lk224_TD3 = float(lk224.query('KRDG? D3'))
y[419,11] = lk224_TD5 = float(lk224.query('KRDG? D5'))
y[419,12] = lk224_A = float(lk224.query('KRDG? A'))
y[419,13] = lk224_B = float(lk224.query('KRDG? B'))
y[419,16] = lk224_TD1 = float(lk224.query('KRDG? D1'))
lr750_a = lr750.query('GET 0')
#print(lr750_a)
if i == 0: # there is some weirdness where the first call returns an empty string
lr750_a_temp = -1
if i != 0:
try:
lr750_a_num = np.float(lr750_a[0:8])
y[419,15] = lr750_a_temp = RX202_interp(-lr750_a_num*1000)
except:
y[419,15] = lr750_a_temp = -1.
k = 0
for j in plots:
#print(y[419,j])
plt.semilogy(x,y[:,j],color = colors[np.mod(j,7)],linestyle = lines[j/7],linewidth = 2, label = labels[j]+" " +str(y[419,j])[0:5]+"K")
if i != 0:
legend.get_texts()[k].set_text(labels[j]+" " +str(y[419,j])[0:5]+"K")
k = k+1
if i == 0:
legend = plt.legend(ncol = 1,loc =2)
plt.draw()
plt.pause(sleep_interval)
if Alarm != 0:
if i > 10: #trigger the alarm if the temps execeed the threshold
Alarm_test[0] = lk218_T1
Alarm_test[1] = lk218_T3
Alarm_test[2] = lk218_T5
Alarm_test[3] = lk218_T6
Alarm_test[4] = lk218_T8
Alarm_test[5] = lk224_TC2
Alarm_test[6] = lk224_TC3
Alarm_test[7] = lk224_TC4
Alarm_test[8] = lk224_TC5
Alarm_test[9] = lk224_TD2
Alarm_test[10] = lk224_TD3
Alarm_test[11] = lk224_TD5
Alarm_test[12] = lk224_A
Alarm_test[13] = lk224_B
Alarm_test[14] = lk218_T2
if (Alarm_test>Alarm_base).any() == True:
print("Alarm Alarm")
if Alarm == 1:
print("first occurance")
fromaddr = 'SubmmLab@gmail.com'
toaddrs = '3145741711@txt.att.net'
msg = 'The temperature alarm was triggered'
username = 'SubmmLab@gmail.com'
password = 'ccatfourier'
server = smtplib.SMTP_SSL('smtp.gmail.com:465')
server.ehlo()
#server.starttls()
server.login(username,password)
server.sendmail(fromaddr, toaddrs, msg)
toaddrs = '3038192582@tmomail.net'
server.sendmail(fromaddr, toaddrs, msg)
server.quit()
Alarm = 2
if i == 0:
print("test")
print('#Human readable time. Time (s) since start. Lakeshore temperature sensor 218 T1,3,5,6,8 and 224 C2,C3,C4,C5,D2,D3,D5,A,B',file=f)
print(str(now)+' '+ str(np.round(t,3)).strip()+' '+str(lk218_T1)+' '+str(lk218_T3)+' '+str(lk218_T5)+' '+str(lk218_T6)+' '+str(lk218_T8)+' '+str(lk224_TC2)+' '+str(lk224_TC3)+' '+str(lk224_TC4)+' '+str(lk224_TC5)+' '+str(lk224_TD2)+' '+str(lk224_TD3)+' '+str(lk224_TD5)+' '+str(lk224_A)+' '+str(lk224_B)+' '+str(lk218_T2)+' '+str(lr750_a_temp)+' '+str(lk224_TD1),file = f) #print the temperature and some nonsense numbers to the file
print(str(now)+' '+ str(np.round(t,3)).strip()+' '+str(lk218_T1)+' '+str(lk218_T3)+' '+str(lk218_T5)+' '+str(lk218_T6)+' '+str(lk218_T8)+' '+str(lk224_TC2)+' '+str(lk224_TC3)+' '+str(lk224_TC4)+' '+str(lk224_TC5)+' '+str(lk224_TD2)+' '+str(lk224_TD3)+' '+str(lk224_TD5)+' '+str(lk224_A)+' '+str(lk224_B)+' '+str(lk218_T2)+' '+str(lr750_a_temp)+' '+str(lk224_TD1))
#time.sleep(60)#sleep for 60 second
i = i + 1
#fridge cycle crap starts here
#the way I am doing it is a bit weird we are just continously looping
#and excuting certain fridge steps if the time is appropriate
#rather than just do things step by step.
#step 1 is open (heat) the ADR switch
# ADR heat switch want to leave open so that the 1K head can cool the ADR
# but turn off before cycle ADR
# doesn't cool well if the 4K-1K switch is not on and the film burner is hot
'''
if t>70*60 and t<800*60: #70,800
if lk224_TD2<26.:
ag49.write('INST:SEL OUT1')
ag49.write('Volt 3.5')#3.5
if lk224_TD2>30.: #temp should drop slowly
ag49.write('INST:SEL OUT1')
ag49.write('Volt 2.5')#2.5
if lk224_TD2>35.: #just in case
ag49.write('INST:SEL OUT1')
ag49.write('Volt 0')
else:
ag49.write('INST:SEL OUT1')
ag49.write('Volt 0')
'''
#Heat up the 4He pump
if t>0*60 and t<50*60:
if lk224_TC2<45.:
ag47t.write('INST:SEL OUT1')
ag47t.write('Volt 25')
if lk224_TC2>45.:
ag47t.write('INST:SEL OUT1')
ag47t.write('Volt 15') #should creep up
if lk224_TC2>50.:
ag47t.write('INST:SEL OUT1')
ag47t.write('Volt 0')
else:
ag47t.write('INST:SEL OUT1')
ag47t.write('Volt 0')
#Heat up the He3 pump turn off 50mins after He4 pump is turned off
if t>30*60 and t<100*60:
if lk224_TC3<45.:
ag47t.write('INST:SEL OUT2')
ag47t.write('Volt 15')
if lk224_TC3>45.:
ag47t.write('INST:SEL OUT2')
ag47t.write('Volt 5')#should increase slowly
if lk224_TC3>50.:
ag47t.write('INST:SEL OUT2')
ag47t.write('Volt 0')
else:
ag47t.write('INST:SEL OUT2')
ag47t.write('Volt 0')
#close (heat) the He4 switch turn on when He4 pump is turned off leave on forever
if t>50*60 and t<300*60:
if lk224_TC4<29.:
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 4')
if lk224_TC4>30.: #temp should drop slowly
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 2')
if lk224_TC4>35.: #just in case
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 0')
elif t>300*60 and lk224_A<0.5: #keep the switches on until the 300mK stage heats up
if lk224_TC4<29.:
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 4')
if lk224_TC4>30.: #temp should drop slowly
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 2')
if lk224_TC4>35.: #just in case
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 0')
else:
ag47b.write('INST:SEL OUT1')
ag47b.write('Volt 0')
#close (heat) the He3 switch turn on when He3 pump is turned off leave on forever
if t>100*60 and t<300*60:
if lk224_TC5<30.:
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 3.6')
if lk224_TC5>30.: #temp should drop slowly
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 2')
if lk224_TC5>35.: #just in case
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 0')
elif t>300*60 and lk224_A<0.5: #keep the switchs on until 300mK stage warms up
if lk224_TC5<30.:
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 3.6')
if lk224_TC5>30.: #temp should drop slowly
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 2')
if lk224_TC5>35.: #just in case
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 0')
else:
ag47b.write('INST:SEL OUT2')
ag47b.write('Volt 0')
#monitor when the 300mK stage heats up.
if t>300*60:
if lk224_A>0.5:
print("fridge cycle complete")
k = k+1
if k>60.: #keep logging for another hour
finished = 1
f.close() #close the file
execfile("Temp_monitor.py") #rusume the normal temperature monitoring process
except KeyboardInterrupt:
pass
f.close() #close the file
print("Human interupted the fridge cycle")