import z_piezo_utils
from splittable_kwargs import splittableKwargsFunction, \
make_splittable_kwargs_function
+import FFT_tools
import common
import config
start_pos = zpiezo.curPos()
pos_dist = zpiezo.pos_nm2out(push_depth) - zpiezo.pos_nm2out(0)
close_pos = start_pos + pos_dist
- appr = linspace(start_pos, close_pos, npoints)
- retr = linspace(close_pos, start_pos, npoints)
- out = concatenate((appr, retr))
+ appr = numpy.linspace(start_pos, close_pos, npoints)
+ retr = numpy.linspace(close_pos, start_pos, npoints)
+ out = numpy.concatenate((appr, retr))
# run the bump, and measure deflection
if config.TEXT_VERBOSE :
print "Bump %g nm" % push_depth
T._splitargs(T, kwargs)
T_raw = T_aquire(**T_aquire_kwargs)
T_analyze.T_save(T_raw, **T_save_kwargs)
- T_ret = T_analyze.T_analyze(T_raw, **T_analyze_kwargs)
- return T_ret
+ T_ret = T_analyze.T_analyze(T_raw, **T_analyze_kwargs) # returns array
+ return T_ret[0]
# vib family
Record data for TIME seconds at FREQ Hz from ZPIEZO at it's current position.
"""
# round up to the nearest power of two, for efficient FFT-ing
- nsamps = ceil_pow_of_two(time*freq)
+ nsamps = FFT_tools.ceil_pow_of_two(time*freq)
time = nsamps / freq
# take some data, keeping the position voltage at it's current value
- out = ones((nsamps,), dtype=uint16) * zpiezo.curPos()
+ out = numpy.ones((nsamps,), dtype=numpy.uint16) * zpiezo.curPos()
if config.TEXT_VERBOSE :
print "get %g seconds of data" % time
data = zpiezo.ramp(out, freq)
- data['sample frequency Hz'] = freq
+ data['sample frequency Hz'] = numpy.array([freq])
return data
@splittableKwargsFunction(vib_aquire,
"""
vib_aquire_kwargs,vib_save_kwargs,vib_analyze_kwargs = \
vib._splitargs(vib, kwargs)
- data = vib_aquire(freq=freq, **vib_aquire_kwargs)
+ data = vib_aquire(**vib_aquire_kwargs)
vib_analyze.vib_save(data, **vib_save_kwargs)
freq = data['sample frequency Hz']
- Vphoto_var = vib_analyze.vib_analyze(deflection_bits=data, freq=freq,
- **vib_analyze_kwargs)
+ deflection_bits = data['Deflection input']
+ Vphoto_var = vib_analyze.vib_analyze(deflection_bits=deflection_bits,
+ freq=freq, **vib_analyze_kwargs)
return Vphoto_var
# A few positioning functions, so we can run bump_aquire() and vib_aquire()
print "get surf pos, with setpoint %g (%d)" % (setpoint, zpiezo.def_V2in(setpoint))
for i in range(20) : # HACK, keep stepping back until we get a distance
try :
- dist = zpiezo.pos_out2nm(getSurfPos(zpiezo, zpiezo.def_V2in(setpoint)))
- except (tooClose, poorFit), string :
+ dist = zpiezo.pos_out2nm( \
+ z_piezo_utils.getSurfPos(zpiezo,zpiezo.def_V2in(setpoint)))
+ except (z_piezo_utils.tooClose, z_piezo_utils.poorFit), string :
stepper.step_rel(-200)
stepper.step_rel(198)
continue
while dist < -stepper_tol : # step back if we need to
stepper.step_rel(-200)
stepper.step_rel(198)
- dist = zpiezo.pos_out2nm(getSurfPos(zpiezo, zpiezo.def_V2in(setpoint)))
+ dist = zpiezo.pos_out2nm( \
+ z_piezo_utils.getSurfPos(zpiezo, zpiezo.def_V2in(setpoint)))
if config.TEXT_VERBOSE :
print 'distance to surface ', dist, ' nm, step back'
while dist > stepper_tol : # and step forward if we need to
stepper.step_rel(2)
- dist = zpiezo.pos_out2nm(getSurfPos(zpiezo, zpiezo.def_V2in(setpoint)))
+ dist = zpiezo.pos_out2nm( \
+ z_piezo_utils.getSurfPos(zpiezo, zpiezo.def_V2in(setpoint)))
if config.TEXT_VERBOSE :
print 'distance to surface ', dist, ' nm, step closer'
# now adjust the zpiezo to place us just onto the surface
(analyze.calib_save, 'bumps','Ts','vibs','log_dir'))
def calib_aquire(stepper, zpiezo, num_bumps=10, num_Ts=10, num_vibs=20,
bump_freq=100e3,
- log_dir=config.LOG_DATA, Vphoto_in2V=config.Vphoto_in2V,
+ log_dir=config.LOG_DIR, Vphoto_in2V=config.Vphoto_in2V,
**kwargs):
"""
Aquire data for calibrating a cantilever in one function.
calib_aquire._splitargs(calib_aquire, kwargs)
# get bumps
move_just_onto_surface(stepper, zpiezo, **move_just_onto_surface_kwargs)
- bumps=zeros((num_bumps,))
+ bumps = numpy.zeros((num_bumps,), dtype=numpy.float)
for i in range(num_bumps) :
- bumps[i] = bump(zpiezo, freq=bump_freq, log_dir=log_dir,
- Vphot_in2V=Vphoto_in2V, **bump_kwargs)
+ bumps[i] = bump(zpiezo=zpiezo, freq=bump_freq, log_dir=log_dir,
+ Vphoto_in2V=Vphoto_in2V, **bump_kwargs)
if config.TEXT_VERBOSE :
print bumps
move_far_from_surface(stepper, **move_far_from_surface_kwargs)
# get Ts
- Ts=zeros((num_Ts,), dtype=float)
+ Ts = numpy.zeros((num_Ts,), dtype=numpy.float)
for i in range(num_Ts) :
Ts[i] = T(**T_kwargs)
time.sleep(1) # wait a bit to get an independent temperature measure
print Ts
# get vibs
- vibs=zeros((num_vibs,))
+ vibs = numpy.zeros((num_vibs,), dtype=numpy.float)
for i in range(num_vibs) :
- vibs[i] = vib(zpiezo, log_dir=log_dir, Vphoto_in2V=Vphoto_in2V,
+ vibs[i] = vib(zpiezo=zpiezo, log_dir=log_dir, Vphoto_in2V=Vphoto_in2V,
**vib_kwargs)
print vibs
@splittableKwargsFunction( \
(calib_aquire, 'log_dir'),
(analyze.calib_analyze, 'bumps','Ts','vibs'))
-def calib(log_dir=None, **kwargs) :
+def calib(log_dir=config.LOG_DIR, **kwargs) :
"""
Calibrate a cantilever in one function.
The I-don't-care-about-the-details black box version :p.
calib._splitargs(calib, kwargs)
a, T, vib = calib_aquire(**calib_aquire_kwargs)
k,k_s,ps2_m, ps2_s,T_m,T_s,one_o_Vp2_m,one_o_Vp2_s = \
- analyze.calib_analyze(a, T, vib, log_dir=log_dir,
- **calib_analyze_kwargs)
+ analyze.calib_analyze(a, T, vib, **calib_analyze_kwargs)
analyze.calib_save_analysis(k, k_s, ps2_m, ps2_s, T_m, T_s,
one_o_Vp2_m, one_o_Vp2_s, log_dir)
return (k, k_s)