def __init__(self, name='hp83620a', pad=12, sad=0):
Gpib.__init__(self, name=name, pad=pad, sad=sad)
self.write('SYST:LANG SCPI') # set language to SCPI
time.sleep(0.2)
self.idstr = self.idstring()
self.mult = self.get_mult()
logger.debug("ID for synth : %s; Multiplier set to: %s" % (self.idstr, self.mult))
def __init__(self, name='hp83620a', pad=12, sad=0):
Gpib.__init__(self, name=name, pad=pad, sad=sad)
self.write('SYST:LANG SCPI') # set language to SCPI
time.sleep(0.2)
self.idstr = self.idstring()
self.mult = self.get_mult()
logger.debug("ID for synth : %s; Multiplier set to: %s" %
(self.idstr, self.mult))
def take_readings(self, nrdgs=2):
self.write('T3') #single trigger mode
time.sleep(self.asksleep)
volt = numpy.zeros(nrdgs, dtype=float)
for i in range(nrdgs):
self.trigger()
time.sleep(self.asksleep)
rdg = float(self.read())
volt[i] = rdg
logger.debug("%d, %s" % (i, rdg))
self.write('T1')
time.sleep(self.asksleep)
return volt.mean(), volt.std()
def take_readings(self, nrdgs=2):
self.write('T3') #single trigger mode
time.sleep(self.asksleep)
volt = numpy.zeros(nrdgs, dtype=float)
for i in range(nrdgs):
self.trigger()
time.sleep(self.asksleep)
rdg = float(self.read())
volt[i] = rdg
logger.debug("%d, %s" % (i, rdg))
self.write('T1')
time.sleep(self.asksleep)
return volt.mean(), volt.std()
def measure(self, nrdgs=2):
rdg = numpy.zeros(nrdgs, dtype='float')
for i in range(nrdgs):
self.write('QM')
meas = self.read()
#print meas
args = meas.split(',')
if len(args) != 4:
raise BeamPatternGeneralError("fluke", "Error in measurement")
else:
val, unit, state, attribute = args
val = float(val)
rdg[i] = val
logger.debug("Voltage read: %.5f" % val)
return rdg.mean(), rdg.std()
def measure(self, nrdgs=2):
rdg = numpy.zeros(nrdgs, dtype='float')
for i in range(nrdgs):
self.write('QM')
meas = self.read()
#print meas
args = meas.split(',')
if len(args) != 4:
raise BeamPatternGeneralError("fluke", "Error in measurement")
else:
val, unit, state, attribute = args
val = float(val)
rdg[i] = val
logger.debug("Voltage read: %.5f" % val)
return rdg.mean(), rdg.std()
def _set_position(self, axis, feedrate, numsteps):
"""
Given a feedrate and number of steps
move the stage to the number of steps
"""
if axis not in ('X', 'Y', 'x', 'y'):
logger.error("Only X & Y axes can be moved")
return
self.write('I %s F%d D%d *' % (axis.upper(), feedrate, numsteps))
time.sleep(0.25)
# count = 0
# while self.command_in_progress():
# time.sleep(0.5)
# count += 1
# if count % 4 == 0:
# print "Command in progress, Time = %.2f seconds" % (count*0.5)
# time.sleep(0.5)
logger.debug("Position set")
def _set_position(self, axis, feedrate, numsteps):
"""
Given a feedrate and number of steps
move the stage to the number of steps
"""
if axis not in ('X', 'Y', 'x', 'y'):
logger.error("Only X & Y axes can be moved")
return
self.write('I %s F%d D%d *' % (axis.upper(), feedrate, numsteps))
time.sleep(0.25)
# count = 0
# while self.command_in_progress():
# time.sleep(0.5)
# count += 1
# if count % 4 == 0:
# print "Command in progress, Time = %.2f seconds" % (count*0.5)
# time.sleep(0.5)
logger.debug("Position set")
def take_readings(self, nrdgs=2):
self.write('NRDGS %d,SYN' % nrdgs)
time.sleep(self.asksleep)
self.write('TRIG HOLD')
time.sleep(self.asksleep)
self.trigger()
volt = numpy.zeros(nrdgs, dtype=float)
time.sleep(self.asksleep * 10)
for i in range(nrdgs):
try:
rdg = self.readuntil()
logger.debug("%d, %s" % (i, rdg))
volt[i] = float(rdg)
except ValueError:
volt[i] = 0.0
time.sleep(self.asksleep)
#self.write('TRIG AUTO')
#time.sleep(self.asksleep)
self.write('TRIG AUTO')
time.sleep(self.asksleep)
self.write('NRDGS %d,AUTO' % nrdgs)
time.sleep(self.asksleep)
return volt.mean(), volt.std()
def take_readings(self, nrdgs=2):
self.write('NRDGS %d,SYN' % nrdgs)
time.sleep(self.asksleep)
self.write('TRIG HOLD')
time.sleep(self.asksleep)
self.trigger()
volt = numpy.zeros(nrdgs, dtype=float)
time.sleep(self.asksleep*10)
for i in range(nrdgs):
try:
rdg = self.readuntil()
logger.debug("%d, %s" % (i, rdg))
volt[i] = float(rdg)
except ValueError:
volt[i] = 0.0
time.sleep(self.asksleep)
#self.write('TRIG AUTO')
#time.sleep(self.asksleep)
self.write('TRIG AUTO')
time.sleep(self.asksleep)
self.write('NRDGS %d,AUTO' % nrdgs)
time.sleep(self.asksleep)
return volt.mean(), volt.std()
def get_power_level(self):
"""Get RF power level in dBm"""
power = float(self.ask('SOUR:POW:LEVEL?'))
logger.debug("Power = %g dBm" % power)
return power
def __init__(self, name='hp3457a', pad=22, sad=0, asksleep=0.01):
Gpib.__init__(self, name=name, pad=pad, sad=sad)
self.asksleep = asksleep
self.idstr = self.idstring()
logger.debug("Multimeter Id: %s" % self.idstr)
def __init__(self, name='hp3457a', pad=22, sad=0,
asksleep=0.01):
Gpib.__init__(self, name=name, pad=pad, sad=sad)
self.asksleep = asksleep
self.idstr = self.idstring()
logger.debug("Multimeter Id: %s" % self.idstr)
def get_power_level(self):
"""Get RF power level in dBm"""
power = float(self.ask('SOUR:POW:LEVEL?'))
logger.debug("Power = %g dBm" % power)
return power