def __init(self,data_q):
threading.Thread.__init__(self)
self.data_q = data_q
# What does this do?
self.alive = threading.Event()
self.alive.set()
self.stepTime = 0.3
self.max_gate = -2.2
self.stepsize = 0.001
self.windowlower = -1.5
self.windowupper = -2.0
self.windowstep = 0.0001
self.gateVoltage = 0.0
# Initialize the devices
self.lockin1 = SRS830.device('GPIB0::8')
self.lockin2 = SRS830.device('GPIB0::16')
#gate = DAC488.device('GPIB::10')
self.gate = keithley.device('GPIB0::24')
self.temp = lakeshore332.device('GPIB0::12')
self.gate.reset()
self.gate.configure_output('VOLT',gateVoltage,0.00005)
self.gate.enable_output()
t_start = time.time()
self.setupfile("VA150ALD2","III")
# -*- coding: utf-8 -*-
"""
Created on Mon Jul 16 16:17:59 2012
Program for Binxin
@author: Bram!
"""
import SRS830
import lakeshore332
import time
t_start = time.time()
points = 1000000
timestep = 1 #(s)
step = 0
lockin = SRS830.device('GPIB1::8')
#lockin2 = SRS830.device('GPIB::17')
temp = lakeshore332.device('GPIB1::12')
#Write the filename here
filename = 'D:\\MANIP\\DATA\\Binxin\\RT_VTI.dat'
out_file = open (filename, 'w')
out_file.write('X-Value\t Y-Value\t Temperature\t Time \n')
print 'X-Value\t Y-Value\t Temperature\t Time'
def read():
t = time.time() - t_start
t = float(t)
x_value = lockin.read_input(1)
x = float(x_value)
y_value = lockin.read_input(2)
biasSet = 5.0
biasVoltage = 0.0
biasStep = 0.1
stepTime = 1
stepVoltage = 0.1 # 1mV steps
#Sample Info
sample = 'VA150ALD2'
wire = 'III'
notes = '.............'
date = time.strftime('%d/%m/%y',time.localtime())
# Initialize the devices
lockin1 = SRS830.device('GPIB::8')
lockin2 = SRS830.device('GPIB::16')
gate = DAC488.device('GPIB::10')
temp = lakeshore332.device('GPIB1::12')
def mkdir_p(path):
try:
os.makedirs(path)
except OSError as exc:
if exc.errno == errno.EEXIST:
pass
else: raise
path = 'C:\\Users\\bram\\Documents\\Data\\' + date + '\\' + sample +'\\' + wire + '\\'
# Make the sample directory
import matplotlib
from pylab import *
using_magnet = True
COIL_VOLTAGE = 1.4
NUM_SAMPLES = 5
NUM_POINTS = 10
MEAS_TIME = 10
REST_TIME = 30
OFFSETS = [-2, 2]
PHASES = [0, 180]
FIELD_SET = arange(0.5, 0.52, 0.002)
# instrumentation setup
lockins = [SRS830.device("dev9"), SRS830.device("dev8"), SRS830.device("dev2")]
# tuple: lockin #, channel, subplot for display
data_channels = (
[0, 1, 1, array([])],
[0, 2, 2, array([])],
[1, 1, 3, array([])],
[1, 2, 4, array([])],
[2, 1, 5, array([])],
[2, 2, 6, array([])],
)
# lakeshore = LS370.LS370('dev12')
f_src = T344.T344("COM1")
if using_magnet == True:
Quick Filter Test
@author: bram
"""
import SRS830
import time
import numpy
import matplotlib
from pylab import *
stepTime = 5
stepsize = 0.001
freq = numpy.logspace(0,5,100)
n = len(freq)
lockin = SRS830.device('GPIB1::14')
lockin.set_freq(freq[0])
# Plotter
#ion()
#fig = figure()
#fig.canvas.set_window_title("Frequency Sweep")
#ax = fig.add_subplot (111)
dat_file = open ("C:\\Users\\keyan\\Documents\\Data\\Filter\\nitrogen.dat", 'w')
dat_file.write("Frequency(hz) \t X(V) \t Y(V) \n")
print("Frequency(hz) \t X(V) \t Y(V) \n")
x = []
y = []
