print 'Autozeroing is switched off'
print B_vec
#set up datafile
append = '_%imK' % T_mc_st + '_Vb%smV' % Vb_stop + '_Vg%sV' % Vg + '_B%sT' % abs(
B_stop) + '_dB%smT' % B_step
qt.config.set('datadir', directory)
data = qt.Data(name=filename + append)
tstr = strftime('%H%M%S_', data._localtime)
data.add_coordinate('B (T)') #parameter to sweep
data.add_coordinate('Vb (mV)') #parameter to sweep
data.add_value('I (nA)') #parameter to read out
data.create_file(settings_file=False)
plot2d = qt.Plot2D(data, coorddim=1, valdim=2, traceofs=0)
plot3d = qt.Plot3D(data, coorddims=(0, 1), valdim=2)
#initialize & sweep
for B in B_vec:
ramp(vi, 'Vb', Vb_start, bias_step, bias_time)
ramp_B_hold(B)
qt.msleep(0.010)
for Vb in Vb_vec:
ramp(vi, 'Vb', Vb, bias_step, bias_time)
qt.msleep(0.025)
I = vm.get_readval() / IV_gain * unit
data.add_data_point(B, Vb, I)
data.new_block()
spyview_process(data, Vb_start, Vb_stop, B)
plot3d.save_png(filepath=directory + '\\' + tstr + filename + append)
def repeated_red_scans(**kw):
pts = 100
m = ScanLT1()
spectral_diffusion = kw.pop('spectral_diffusion', False)
SMB100_lt1.set_power(-5)
SMB100_lt1.set_frequency(2.8265e9)
SMB100_lt1.set_iq('off')
SMB100_lt1.set_pulm('off')
SMB100_lt1.set_status('on')
red_data = qt.Data(name = 'LaserScansYellowRepump_LT1_Red')
red_data.add_coordinate('Voltage (V)')
red_data.add_coordinate('Frequency (GHz)')
red_data.add_coordinate('Counts (Hz)')
red_data.add_coordinate('index')
red_data.add_coordinate('start time')
red_data.create_file()
yellow_data = qt.Data(name = 'LaserScansYellowRepump_LT1_Yellow')
yellow_data.add_coordinate('Voltage (V)')
yellow_data.add_coordinate('Frequency (GHz)')
yellow_data.add_coordinate('Counts (Hz)')
yellow_data.add_coordinate('index')
yellow_data.add_coordinate('start time')
yellow_data.create_file()
plt_red_cts = qt.Plot2D(red_data, 'bO',
name='Laserscan_Counts',
clear=True, coorddim=1, valdim=2, maxtraces=5, traceofs=5000)
plt_red_frq = qt.Plot2D(red_data, 'rO',
name='Laserscan_Frequency',
clear=True, coorddim=0, valdim=1, maxtraces=1)
plot3d_red = qt.Plot3D(red_data, name='Laserscan_Counts_Reps',
clear=True, coorddims=(1,3), valdim=2)
plt_yellow_cts = qt.Plot2D(yellow_data, 'bO',
name='Laserscan_Counts_Y',
clear=True, coorddim=1, valdim=2, maxtraces=5, traceofs=5000)
plt_yellow_frq = qt.Plot2D(yellow_data, 'rO',
name='Laserscan_Frequency_Y',
clear=True, coorddim=0, valdim=1, maxtraces=1)
plot3d_yellow = qt.Plot3D(yellow_data, name='Laserscan_Counts_Reps_Y',
clear=True, coorddims=(1,3), valdim=2)
t0 = time.time()
for i in range(pts):
if (msvcrt.kbhit() and msvcrt.getch()=='x'):
break
# tpulse = 10
# print "{} seconds of red power...".format(tpulse)
# stools.apply_awg_voltage('AWG', 'ch4_marker1', 0.52)
# qt.msleep(tpulse)
# stools.apply_awg_voltage('AWG', 'ch4_marker1', 0.02)
if spectral_diffusion:
m.spectral_diffusion(20, 25, 0.2e-9, 58, 65, 0.01, 20, 1e-9,
red_data = red_data,
yellow_data = yellow_data,
data_args=[i, time.time()-t0])
else:
m.yellow_red(20, 25, 0.2e-9, 58, 65, 0.01, 20, 1e-9,
red_data = red_data,
yellow_data = yellow_data,
data_args=[i, time.time()-t0])
red_data.new_block()
yellow_data.new_block()
plot3d_red.update()
plot3d_yellow.update()
SMB100_lt1.set_status('off')
red_data.close_file()
yellow_data.close_file()
plot3d_red.save_png()
plot3d_yellow.save_png()
def repeated_red_scans(**kw):
m = Scan()
spectral_diffusion = kw.pop('spectral_diffusion', False)
gate_scan = kw.pop('gate_scan', False)
gate_range = kw.pop('gate_range', None)
pts = kw.pop('pts', 100)
# m.mw.set_power(-9)
# m.mw.set_frequency(2.8265e9)
# m.mw.set_iq('off')
# m.mw.set_pulm('off')
# m.mw.set_status('on')
m.newfocus.set_power(1e-9)
red_data = qt.Data(name='LaserScansYellowRepump_LT4_Red')
red_data.add_coordinate('Voltage (V)')
red_data.add_coordinate('Frequency (GHz)')
red_data.add_coordinate('Counts (Hz)')
if gate_scan:
red_data.add_coordinate('Gate voltage (V)')
else:
red_data.add_coordinate('index')
red_data.add_coordinate('start time')
red_data.create_file()
yellow_data = qt.Data(name='LaserScansYellowRepump_LT4_Yellow')
yellow_data.add_coordinate('Voltage (V)')
yellow_data.add_coordinate('Frequency (GHz)')
yellow_data.add_coordinate('Counts (Hz)')
if gate_scan:
yellow_data.add_coordinate('Gate voltage (V)')
else:
yellow_data.add_coordinate('index')
yellow_data.add_coordinate('start time')
yellow_data.create_file()
plt_red_cts = qt.Plot2D(red_data,
'r-',
name='Laserscan_Counts',
clear=True,
coorddim=1,
valdim=2,
maxtraces=5,
traceofs=5000,
autoupdate=True)
plt_red_frq = qt.Plot2D(red_data,
'rO',
name='Laserscan_Frequency',
clear=True,
coorddim=0,
valdim=1,
maxtraces=1,
autoupdate=True)
plot3d_red = qt.Plot3D(red_data,
name='Laserscan_Counts_Reps',
clear=True,
coorddims=(1, 3),
valdim=2)
plt_yellow_cts = qt.Plot2D(yellow_data,
'b-',
name='Laserscan_Counts_Y',
clear=True,
coorddim=1,
valdim=2,
maxtraces=5,
traceofs=5000,
autoupdate=True)
plt_yellow_frq = qt.Plot2D(yellow_data,
'bO',
name='Laserscan_Frequency_Y',
clear=True,
coorddim=0,
valdim=1,
maxtraces=1,
autoupdate=True)
plot3d_yellow = qt.Plot3D(yellow_data,
name='Laserscan_Counts_Reps_Y',
clear=True,
coorddims=(1, 3),
valdim=2,
autoupdate=True)
if gate_scan:
gate_x = np.linspace(gate_range[0], gate_range[1], pts)
ret = True
t0 = time.time()
for i in range(pts):
print 'press x to stop'
qt.msleep(2.5)
if (msvcrt.kbhit() and msvcrt.getch() == 'x'):
ret = False
break
# tpulse = 10
# print "{} seconds of red power...".format(tpulse)
# stools.apply_awg_voltage('AWG', 'ch4_marker1', 0.52)
# qt.msleep(tpulse)
# stools.apply_awg_voltage('AWG', 'ch4_marker1', 0.02)
if spectral_diffusion:
m.spectral_diffusion(20,
25,
0.2e-9,
58,
65,
0.01,
20,
1e-9,
red_data=red_data,
yellow_data=yellow_data,
data_args=[i, time.time() - t0])
else:
ix = i
if gate_scan:
set_gate_voltage(gate_x[i])
ix = gate_x[i] * 45. / 1000
m.yellow_red(29,
32,
0.008,
50e-9,
54.9,
55.4,
0.004,
20,
0.03e-9,
red_data=red_data,
yellow_data=yellow_data,
data_args=[ix, time.time() - t0])
red_data.new_block()
yellow_data.new_block()
plot3d_red.update()
plot3d_yellow.update()
plt_red_cts.update()
if gate_scan:
set_gate_voltage(0)
# m.mw.set_status('off')
m.newfocus.set_power(0e-9)
red_data.close_file()
yellow_data.close_file()
plot3d_red.save_png()
plot3d_yellow.save_png()
return ret
def run_scan(self, **kw):
stabilizing_time = kw.pop('stabilizing_time', 0.01)
d = qt.Data(name=self.mprefix + '_' + self.name)
d.create_file()
d.add_coordinate('Voltage (V)')
d.add_coordinate('Frequency (GHz)')
d.add_coordinate('Counts [Hz]')
d.add_coordinate('Gate Voltage(V)')
p = qt.Plot2D(d,
'ro',
title='Frq (left) vs Voltage (bottom)',
plottitle=self.mprefix,
name='Laser Scan',
clear=True,
coorddim=0,
valdim=1,
maxtraces=1)
p.add(d,
'bo',
title='Counts (right) vs Frq (top)',
coorddim=1,
valdim=2,
right=True,
top=True)
p.set_x2tics(True)
p.set_y2tics(True)
p.set_x2label('Frequency (GHz)')
p.set_y2label('Counts [Hz]')
d2 = qt.Data(name=self.mprefix + '_' + self.name + '_yellow')
d2.create_file()
d2.add_coordinate('Voltage (V)')
d2.add_coordinate('Frequency (GHz)')
d2.add_coordinate('Counts [Hz]')
d2.add_coordinate('Gate Voltage(V)')
p2 = qt.Plot2D(d2,
'ro',
title='Frq (left) vs Voltage (bottom)',
plottitle=self.mprefix + '_yellow',
name='Laser Scan_yellow',
clear=True,
coorddim=0,
valdim=1,
maxtraces=1)
p2.add(d2,
'b',
title='Counts (right) vs Frq (top)',
coorddim=1,
valdim=2,
right=True,
top=True)
p2.set_x2tics(True)
p2.set_y2tics(True)
p2.set_x2label('Frequency (GHz)')
p2.set_y2label('Counts [Hz]')
if self.plot_3D:
p3D = qt.Plot3D(d,
name='Laser_Scan2D',
plottitle=self.mprefix,
coorddims=(1, 3),
valdim=2,
clear=True)
p3D2 = qt.Plot3D(d2,
name='Laser_Scan2D_yellow',
plottitle=self.mprefix,
coorddims=(1, 3),
valdim=2,
clear=True)
d3 = qt.Data(name=self.mprefix + '_' + self.name + '_hene')
d3.create_file()
d3.add_coordinate('repetition')
d3.add_coordinate('Frequency (GHz)')
qt.mstart()
################################################
for j, gv in enumerate(
np.linspace(self.gate_start_voltage, self.gate_stop_voltage,
self.gate_pts)):
if (msvcrt.kbhit() and (msvcrt.getch() == 'c')): break
if self.set_gate:
self.gate_scan_to_voltage(gv)
else:
gv = j
frq = self.get_frequency(self.wm_channel_hene)
d3.add_data_point(j, frq)
####################### RED scan
self.set_laser_power(self.laser_power)
for i, v in enumerate(
np.linspace(self.start_voltage, self.stop_voltage,
self.pts)):
if msvcrt.kbhit():
chr = msvcrt.getch()
if chr == 'q':
break
self.set_laser_voltage(v)
qt.msleep(stabilizing_time)
cts = float(
self.get_counts(self.integration_time)[
self.counter_channel]) / (self.integration_time * 1e-3)
frq = self.get_frequency(
self.wm_channel) * self.frq_factor - self.frq_offset
if frq < 0:
print 'WARNING: WM gives frq', frq
continue
d.add_data_point(v, frq, cts, gv)
if np.mod(i, 10) == 0:
p.update()
# RED scan back +repump
self.set_laser_power(self.red_repump_power)
self.scan_to_voltage(self.pump_voltage - 0.2)
self.scan_to_voltage(self.pump_voltage + 0.2)
self.scan_to_voltage(self.start_voltage)
self.set_laser_power(0)
if self.set_gate_to_zero_before_repump:
self.gate_scan_to_voltage(0.)
p.update()
plotsavename = os.path.splitext(
d.get_filepath())[0] + ('_gate_voltage_%2.3f' % gv) + '.png'
p.set_plottitle(str(os.path.splitext(d.get_filename())[0]))
p.save_png(filepath=plotsavename)
d.new_block()
if self.gate_pts > 1 and self.plot_3D:
p3D.update()
#######################
####################### YELLOW scan
self.set_laser_power_yellow(self.laser_power_yellow)
for i, v in enumerate(
np.linspace(self.start_voltage_yellow,
self.stop_voltage_yellow, self.pts_yellow)):
if msvcrt.kbhit():
chr = msvcrt.getch()
if chr == 'q':
break
self.set_laser_voltage_yellow(v)
qt.msleep(stabilizing_time)
cts = float(
self.get_counts(self.integration_time_yellow)[
self.counter_channel]) / (self.integration_time * 1e-3)
frq = self.get_frequency(
self.wm_channel_yellow
) * self.frq_factor_yellow - self.frq_offset_yellow
if frq < 0:
continue
d2.add_data_point(v, frq, cts, gv)
if np.mod(i, 10) == 0:
p2.update()
# YELLOW scan back +repump
self.set_laser_power_yellow(self.yellow_repump_power)
self.scan_to_voltage_yellow(self.start_voltage_yellow)
self.set_laser_power_yellow(0)
if self.set_gate_to_zero_before_repump:
self.gate_scan_to_voltage(0.)
p2.update()
plotsavename = os.path.splitext(
d2.get_filepath())[0] + ('_gate_voltage_%2.3f' % gv) + '.png'
p2.set_plottitle(str(os.path.splitext(d.get_filename())[0]))
p2.save_png(filepath=plotsavename)
d2.new_block()
if self.gate_pts > 1 and self.plot_3D:
p3D2.update()
#######################
qt.mend()
##############################################################
if self.gate_pts > 1 and self.plot_3D:
p3D.reset()
qt.msleep(1)
p3D.save_png()
p3D2.reset()
qt.msleep(1)
p3D2.save_png()
np.savez(os.path.splitext(d.get_filepath())[0] + '.npz',
data=d.get_data())
np.savez(os.path.splitext(d2.get_filepath())[0] + '.npz',
data=d2.get_data())
np.savez(os.path.splitext(d3.get_filepath())[0] + '.npz',
data=d3.get_data())
d.close_file()
d2.close_file()
d3.close_file()
def example2(f_vec, b_vec):
'''
This example introduces three new features:
1) setting format and/or precision of data in the datafile.
using 'precision' will keep the default scientific notation,
'format' can be anything you like
=> add_coordinate(precision=<nr>)
=> add_coordinate(format='<format_string>')
2) specify specific filepath for the data file (in stead of
automatic filepath)
=> create_file(filepath=<filepath>)
3) turn off automatic saving of instrument-settings-file.
=> create_file(settings_file=False)
To run the function type in the terminal:
fv=numpy.arange(0,10,0.01)
bv=numpy.arange(-5,5,0.1)
measure_module.example2(fv, bv)
'''
qt.mstart()
# this shows how to change format of saved data (per column)
data = qt.Data(name='testmeasurement')
data.add_coordinate('frequency, mw src 1 [Hz]', precision=3)
data.add_coordinate('Bfield, ivvi dac 3 [mV]', format='%.12f')
data.add_value('Psw SQUID', format='%.3e')
data.create_file()
# this shows how to save to a specific path and name, and how
# to avoid a settings file to be created. The directory is first
# retreived from the previous data object
dir = data.get_dir()
maxfilepath = os.path.join(dir, 'maxvals.dat')
data_max = qt.Data(name='maxvals')
data_max.add_coordinate('Bfield, ivvi dac 3 [mV]')
data_max.add_value('resonance frequency [Hz]')
data_max.create_file(
filepath=maxfilepath,
settings_file=False)
plot2d = qt.Plot2D(data, name='measure2D')
plot3d = qt.Plot3D(data, name='measure3D', style='image')
plot2dmax = qt.Plot2D(data_max, name='maxvals')
for b in b_vec:
fake_ivvi_set_dac_3(b)
last_trace = []
for f in f_vec:
fake_mw_src_set_freq(f)
result = fake_readout_psw()
data.add_data_point(f, b, result)
last_trace.append(result)
qt.msleep(0.01)
data.new_block()
loc_of_max = numpy.argmax(last_trace)
freq_at_max = f_vec[loc_of_max]
data_max.add_data_point(b, freq_at_max)
data.close_file()
data_max.close_file()
qt.mend()
def sweep_power_measure_trace(xstart=-100,
xend=-60,
Nx=10,
drivefrequency=11,
centerfrequency=11,
span=2,
Nrepeat=1,
nplc=1,
plotting=True,
title=''):
#x = RF power of signal generator
qt.mstart()
filename = 'test'
Ny = specana.get_sweep_points()
data = qt.Data(name=filename)
data.add_coordinate('Frequency (MHz)', size=Ny)
data.add_coordinate('RF Power (dBm)', size=Nx)
data.add_value('Spectral power (dBm)')
data.create_file()
x_vec = linspace(xstart, xend, Nx)
siggen.switch_on()
siggen.set_frequency(drivefrequency)
specana.set_center_frequency(centerfrequency)
specana.set_span(span)
for cnt in range(Nrepeat):
for xcnt, x_sweep in enumerate(x_vec):
print 'power #%s' % (xcnt + 1)
siggen.set_power(x_sweep)
sleep(2)
Vtrace = specana.get_trace() # value trace
xtrace = x_sweep * ones(len(Vtrace))
ytrace = linspace(centerfrequency - span / 2,
centerfrequency + span / 2,
len(Vtrace)) # frequency trace
data.new_block()
data.add_data_point(ytrace, xtrace, Vtrace)
siggen.switch_off()
print 'RFPower from %s dBm to %s dBm at %s MHz in %s steps' % (
xstart, xend, drivefrequency, Nx)
if plotting:
#plot2d = qt.Plot2D(data, name=filename)
plot3d = qt.Plot3D(data, name=filename)
if plotting:
#plot2d.save_png()
plot3d.save_png()
data._write_settings_file()
data_array = data.get_data()
data.close_file()
qt.mend()
def stability_diagram(channel1=1,
xstart=-100,
xend=-60,
Nx=10,
channel2=2,
ystart=-100,
yend=-60,
Ny=10,
Nrepeat=1,
plotting=True,
title='',
returntozero=True):
#x = dac channel1 (sweep)
#y = dac channel2 (loop1)
#where to add general measurement data?
qt.mstart()
filename = 'test'
multiplier1 = ivvi.get_dac_multiplier(channel1)
multiplier2 = ivvi.get_dac_multiplier(channel2)
data = qt.Data(name=filename)
if channel1 == 1:
xname = 'Bias voltage (mV)'
elif channel1 == 2:
xname = 'Gate voltage (mV)'
else:
xname = 'dac%s' % channel1
data.add_coordinate(xname, size=Nx)
if channel2 == 1:
yname = 'Bias voltage (mV)'
elif channel2 == 2:
yname = 'Gate voltage (mV)'
else:
yname = 'dac%s' % channel2
data.add_coordinate(yname, size=Ny)
a = keithley1.get_parameter_options('IVVI_gain')
curryes = a['curryes']
if curryes: #is current measured or voltage?
data.add_value('Current (pA)')
else:
data.add_value('Voltage (mV)')
data.create_file()
x_vec = linspace(xstart, xend, Nx)
y_vec = linspace(ystart, yend, Ny)
for cnt in range(Nrepeat):
for ycnt, y_sweep in enumerate(y_vec):
print ycnt
ivvi.set('dac%s' % channel2, y_sweep)
for xcnt, x_sweep in enumerate(x_vec):
ivvi.set('dac%s' % channel1, x_sweep)
z_sweep = keithley1.get_readlastval()
data.add_data_point(y_sweep, x_sweep, z_sweep)
data.new_block()
print xname + ' from %s mV to %s mV in %s steps' % (multiplier1 * xstart,
multiplier1 * xend, Nx)
print yname + ' from %s mV to %s mV in %s steps' % (multiplier2 * ystart,
multiplier2 * yend, Ny)
if plotting:
#plot2d = qt.Plot2D(data, name=filename)
plot3d = qt.Plot3D(data, name=filename)
if plotting:
#plot2d.save_png()
plot3d.save_png()
data._write_settings_file()
data_array = data.get_data()
print data_array
cnt2 = 0
deltax = (float(xend) - xstart) / (Nx - 1)
datastabdiag = qt.Data(name='test2')
if channel1 == 1:
xname = 'Bias voltage (mV)'
elif channel1 == 2:
xname = 'Gate voltage (mV)'
else:
xname = 'dac%s' % channel1
datastabdiag.add_coordinate(xname, size=Nx)
if channel2 == 1:
yname = 'Bias voltage (mV)'
elif channel2 == 2:
yname = 'Gate voltage (mV)'
else:
yname = 'dac%s' % channel2
datastabdiag.add_coordinate(yname, size=Ny)
datastabdiag.add_value('dI/dV (pA/mV)')
datastabdiag.create_file()
#datastabdiag_array=zeros(data_array.shape)+1.5
print type(data)
print type(datastabdiag)
cnt2 = 0
print deltax
for cnt in range(Nrepeat):
for ycnt, y_sweep in enumerate(y_vec):
for xcnt, x_sweep in enumerate(x_vec):
if xcnt != Nx - 1: #stability diagram has same size as original data, with last line double, gnuplot doesn't plot last/first line anyway
z_sweep = (data_array[cnt2 + 1][2] -
data_array[cnt2][2]) / deltax
print xcnt, z_sweep, type(z_sweep)
datastabdiag.add_data_point(y_sweep, x_sweep, z_sweep)
cnt2 = cnt2 + 1
datastabdiag.new_block()
plotstabdiag = qt.Plot3D(datastabdiag, name='test')
print datastabdiag.get_data()
data.close_file()
qt.mend()
if returntozero:
set_dacs_to_zero()
def example3(x_vec=numpy.linspace(0, 10, 10), y_vec=numpy.linspace(0, 10, 50)):
'''
To run the function type in the terminal:
measure_module.example3()
'''
qt.mstart()
data = qt.Data(name='testmeasurement')
data.add_coordinate('x')
data.add_coordinate('y')
data.add_value('z1')
data.add_value('z2')
data.add_value('z3')
data.create_file()
plot2d_1 = qt.Plot2D(data, name='2D_1', coorddim=1, valdim=2)
plot2d_2 = qt.Plot2D(data, name='2D_2', coorddim=1, valdim=2, maxtraces=1)
plot2d_3 = qt.Plot2D(data, name='2D_3', coorddim=1, valdim=2, maxtraces=1)
plot2d_3.add_data(data, coorddim=1, valdim=3, maxtraces=1)
plot2d_3.add_data(data, coorddim=1, valdim=4, maxtraces=1)
plot2d_4 = qt.Plot2D(data, name='2D_4', coorddim=1, valdim=2, mintime=0.3)
plot2d_5 = qt.Plot2D(data,
name='2D_5',
coorddim=1,
valdim=2,
autoupdate=False)
plot3d_1 = qt.Plot3D(data, name='3D_1', style='image')
plot3d_2 = qt.Plot3D(data,
name='3D_2',
style='image',
coorddims=(1, 0),
valdim=4)
for x in x_vec:
for y in y_vec:
z1 = numpy.sin(x + y)
z2 = numpy.cos(x + y)
z3 = numpy.sin(x + 2 * y)
data.add_data_point(x, y, z1, z2, z3)
if z1 > 0:
plot2d_5.update()
qt.msleep(0.1)
data.new_block()
plot2d_1.save_png()
plot2d_1.save_gp()
plot3d_2.save_png()
plot3d_2.save_gp()
data.close_file()
qt.mend()
smb.get_all()
#Set up datafile
data = qt.Data(name=filename)
data.add_coordinate('RF frequency [MHz]')
data.add_coordinate('FM Deviation [kHz]')
data.add_value('X [pA]')
data.add_value('Y [pA]')
data.create_file()
data.copy_file('FMdevsweep.py')
plot2dx = qt.Plot2D(data, name='xcomp', coorddim=0, valdim=2)
#plot2dy = qt.Plot2D(data, name='ycomp', coorddim=0, valdim=3)
plot3D = qt.Plot3D(data, name='xcomp over deviation', coorddims=(0,1), valdim=2)
#Actual sweep
spyview_process(reset=True)
for dev in arange(FM_dev_start,FM_dev_stop+FM_dev_step,FM_dev_step):
smb.set_FM_deviation(dev)
qt.msleep(1)
for f in arange(RF_start,RF_stop+RF_step,RF_step):
smb.set_RF_frequency(f)
qt.msleep(.3)
x=lockin.get_X() #or Y or R
y=lockin.get_Y()
x*=-1e5
y*=-1e5
data.add_data_point(f,dev,x,y)
data.new_block()
