def stop_measure(self):
#A ameliorer en recuperant dirrectement les tasks depuis system.truc
try:
self.timer.stop()
except:
pass
try:
self.apd.close()
except:
pass
try:
self.voltage_out.close()
except:
pass
try:
self.tension.close()
except:
pass
try:
with nidaqmx.Task() as task:
task.ao_channels.add_ao_voltage_chan('Dev1/ao0')
task.write(0)
task.start()
except:
pass
self.stop.setEnabled(False)
self.start.setEnabled(True)
def apply_voltage(self):
self.V = float(self.textV.text())
with nidaqmx.Task() as task:
source = self.source_menu.currentIndex()
task.ao_channels.add_ao_voltage_chan('Dev1/ao' + str(source))
task.write(self.V)
task.start()
def servo():
with nidaqmx.Task() as task:
task.ao_channels.add_ao_voltage_chan('Dev1/ao1')
angle = 20
tension = angle * 5. / 180.
task.write(tension)
time.sleep(0.5)
def do2():
with nidaqmx.Task() as task:
task.do_channels.add_do_chan('Dev1/port0/line1')
out_stream = nidaqmx._task_modules.out_stream.OutStream(task)
task.timing.cfg_samp_clk_timing(
10000, sample_mode=nidaqmx.constants.AcquisitionType.CONTINUOUS)
signal = np.zeros(100)
for i in range(len(signal)):
if i % 2 == 0:
signal[i] = 1
signal = np.float64(signal)
#print (signal[0].dtype)
task.write([False, True], auto_start=True)
def digital_out():
with nidaqmx.Task() as task:
task.do_channels.add_do_chan('Dev1/port0/line0')
task.timing.cfg_samp_clk_timing(
100,
sample_mode=nidaqmx.constants.AcquisitionType.FINITE,
samps_per_chan=200)
signal = [True, False] * 5
task.write(signal)
task.start()
while not task.is_task_done():
pass
def trigger():
with nidaqmx.Task() as trig:
with nidaqmx.Task() as task:
trig.co_channels.add_co_pulse_chan_freq('Dev1/ctr2', freq=0.2)
trig.timing.cfg_implicit_timing(
sample_mode=nidaqmx.constants.AcquisitionType.CONTINUOUS)
trig.start()
task.do_channels.add_do_chan('Dev1/port0/line0')
task.timing.cfg_samp_clk_timing(
1,
sample_mode=nidaqmx.constants.AcquisitionType.FINITE,
samps_per_chan=2)
task.triggers.start_trigger.cfg_dig_edge_start_trig(
'/Dev1/Ctr2InternalOutput')
task.write([True, False])
task.start()
while not task.is_task_done():
pass
def zero_hyst(self):
dt = 1E-3
N = 2000
f_oscill = 50
f_acq = 1 / dt
tmax = N * dt
omega = f_oscill * 2 * np.pi
t = np.linspace(0, tmax, N)
Vlist = np.cos(t * omega) * (tmax - t) / tmax * 5
with nidaqmx.Task() as task:
source = self.source_menu.currentIndex()
task.ao_channels.add_ao_voltage_chan('Dev1/ao' + str(source))
task.timing.cfg_samp_clk_timing(
f_acq,
sample_mode=nidaqmx.constants.AcquisitionType.FINITE,
samps_per_chan=N)
task.write(Vlist)
task.start()
while not task.is_task_done():
pass
def close_shutter(self):
with nidaqmx.Task() as task:
task.do_channels.add_do_chan('Dev1/port0/line0')
task.write(False)
while not task.is_task_done():
pass
def moveServo(self):
with nidaqmx.Task() as task:
task.ao_channels.add_ao_voltage_chan('Dev1/ao1')
tension=self.target*5./180.
task.write(tension)
time.sleep(0.5)
def test_sample_clock():
with nidaqmx.Task() as task:
task.do_channels.add_do_chan('Dev1/port2/line4')
task.write(True)
task.start()
