def map_dac_to_mass(self, dac, detname):
"""
convert a DAC value (voltage) to mass for a given detector
use the mftable
:param dac: float, voltage (0-10V)
:param detname: str, name of a detector, e.g H1
:return: float, mass
"""
from pychron.spectrometer.mftable import get_detector_name, mass_cal_func
detname = get_detector_name(detname)
d = self.mftable.get_table()
_, xs, ys, p = d[detname]
def func(x, *args):
c = list(p)
c[-1] -= dac
return mass_cal_func(c, x)
try:
mass = optimize.brentq(func, 0, 200)
return mass
except ValueError, e:
self.debug('DAC does not map to an isotope. DAC={}, Detector={}'.format(dac, detname))
def map_dac_to_mass(self, dac, detname):
"""
convert a DAC value (voltage) to mass for a given detector
use the mftable
:param dac: float, voltage (0-10V)
:param detname: str, name of a detector, e.g H1
:return: float, mass
"""
from pychron.spectrometer.mftable import get_detector_name, mass_cal_func
detname = get_detector_name(detname)
d = self.mftable.get_table()
_, xs, ys, p = d[detname]
def func(x, *args):
c = list(p)
c[-1] -= dac
return mass_cal_func(c, x)
try:
mass = optimize.brentq(func, 0, 200)
return mass
except ValueError, e:
import traceback
traceback.print_exc()
self.debug('DAC does not map to an isotope. DAC={}, Detector={}'.format(dac, detname))
def map_mass_to_dac(self, mass, detname):
detname = get_detector_name(detname)
d = self.mftable.get_table()
_, xs, ys, p = d[detname]
dac = mass_cal_func(p, mass)
self.debug('map mass to dac {} >> {}'.format(mass, dac))
return dac
def map_dac_to_mass(self, dac, detname):
detname = get_detector_name(detname)
d = self.mftable.get_table()
_, xs, ys, p = d[detname]
def func(x, *args):
c = list(p)
c[-1] -= dac
return mass_cal_func(c, x)
mass = optimize.brentq(func, 0, 200)
return mass
def map_mass_to_dac(self, mass, detname):
"""
convert a mass value from amu to dac for a given detector
:param mass: float, amu
:param detname: std, name of a detector, e.g. H1
:return: float, dac voltage
"""
from pychron.spectrometer.mftable import get_detector_name, mass_cal_func
detname = get_detector_name(detname)
d = self.mftable.get_table()
_, xs, ys, p = d[detname]
dac = mass_cal_func(p, mass)
self.debug('map mass to dac {} >> {}'.format(mass, dac))
return dac
def map_mass_to_dac(self, mass, detname):
"""
convert a mass value from amu to dac for a given detector
:param mass: float, amu
:param detname: std, name of a detector, e.g. H1
:return: float, dac voltage
"""
from pychron.spectrometer.mftable import get_detector_name, mass_cal_func
detname = get_detector_name(detname)
d = self.mftable.get_table()
_, xs, ys, p = d[detname]
dac = mass_cal_func(p, mass)
self.debug('map mass to dac {} >> {}'.format(mass, dac))
return dac