def PH_run(self):
"""Runs in own thread - reads data via Picoharp counters"""
self.measure_data = pl.zeros((50, ))
try:
self.ph = ph.PicoHarp()
if self.dt < 0.1:
print "Integration time too short! Changed to 0.1s"
self.dt = 0.1
self.time.setValue(0.1)
while self.running:
nbOfIntegrations = self.dt / 100
newCount = 0
for i in range(nbOfIntegrations):
time.sleep(0.1) # 100 ms gate time on PicoHarp counters
rates = self.ph.getCountRates()
if self.detID == 0:
newCount += rates[
0] * 0.1 # counts on 100 ms integration bin
elif self.detID == 1:
newCount += rates[
1] * 0.1 # counts on 100 ms integration bin
else:
newCount += sum(
rates) * 0.1 # counts on 100 ms integration bin
self.measure_data[0] = newCount / (float(self.dt) / 1000)
self.measure_data = pl.roll(self.measure_data, -1)
#print self.measure_data
self.gotdata = True
finally:
self.running = False
self.ph.close()
self.btn.setEnabled(True)
def PH_run(self):
"""Runs in own thread - reads data via Picoharp counters"""
self.v_step = pl.array([pl.linspace(self.v_i, self.v_f, self.no_of_steps) for i in range(self.repeats)]).flatten()
try:
self.ph = ph.PicoHarp()
for v in self.v_step:
if self.running:
self.voltT.setDACvoltage(voltage=float(v) / 1000, outputId=2)
nbOfIntegrations = self.dt / 100
newCount = 0
for i in range(nbOfIntegrations):
time.sleep(0.1) # 100 ms gate time on PicoHarp counters
rates = self.ph.getCountRates()
newCount += sum(rates) * 0.1 # counts on 100 ms integration bin
self.buff.append(newCount / (float(self.dt) / 1000))
self.gotdata = True
else:
break
finally:
self.running = False
self.ph.close()
self.voltT.close()
def startSelectedInstrument(self, counterDevice):
if counterDevice == self.NI_BOX:
self.NI_init_ctr(intTime=self.dt)
elif counterDevice == self.MULTIMETER:
self.multi = AgilentMultimeter(r'GPIB0::23::INSTR')
elif counterDevice == self.PICOHARP:
self.ph = ph.PicoHarp()
else:
self.tag = createTimeTagger()
self.tag.setTriggerLevel(0, 0.1)
self.tag.setTriggerLevel(1, 0.1)
self.tag.autoCalibration()