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Calibration results can now be saved to config.

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Leon Teichröb
2021-10-15 11:21:56 +02:00
parent a08ba26384
commit 747e424871
2 changed files with 58 additions and 11 deletions
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src/helmholtz_cage_device.py
+18 -6
View File
@@ -70,8 +70,6 @@ class HelmholtzCageDevice:
self.psu1 = None
self.psu2 = None
self.connect_hardware()
# --- AXIS CONFIGURATION ---
# This is also hardware related, but in a separate section to keep it clean.
# Get all settings from the config file
@@ -81,6 +79,8 @@ class HelmholtzCageDevice:
# The axes talks to the HW objects (Arduino, PSU) referenced in this object
self.axes.append(Axis(i, self))
self.connect_hardware()
# Zero and activate channels. This is a sort of "armed" state so that we can send commands later
self.idle()
@@ -137,6 +137,10 @@ class HelmholtzCageDevice:
self.psu2 = None
ui_print("Error creating PSU device:\n{}".format(e))
# The axes may not be deleted, so a special method for reinitialization is provided.
for axis in self.axes:
axis.reload_config()
def idle(self):
""" Zero and activate channels """
if self.psu1 is not None:
@@ -393,16 +397,24 @@ class Axis:
self.name = g.AXIS_NAMES[axis_idx] # Also used in some indexing operations, like in the config file
# Create other axis properties using config parameters
self.coil_const = None
self.ambient_field = None
self.resistance = None
self.max_volts = None
self.max_amps = None
self.reload_config()
# State variables
self.target_current = 0
self.polarity = False
def reload_config(self):
self.coil_const = float(config_handling.read_from_config(self.name, "coil_const", config_handling.CONFIG_OBJECT))
self.ambient_field = float(config_handling.read_from_config(self.name, "ambient_field", config_handling.CONFIG_OBJECT))
self.resistance = float(config_handling.read_from_config(self.name, "resistance", config_handling.CONFIG_OBJECT))
self.max_volts = float(config_handling.read_from_config(self.name, "max_volts", config_handling.CONFIG_OBJECT))
self.max_amps = float(config_handling.read_from_config(self.name, "max_amps", config_handling.CONFIG_OBJECT))
# State variables
self.target_current = 0
self.polarity = False
def set_field_raw(self, field):
self.set_signed_current(field / self.coil_const)
src/user_interface.py
+40 -5
View File
@@ -570,11 +570,13 @@ class CalibrateAmbientField(Frame):
self.ambient_field_result_vars = [StringVar(), StringVar(), StringVar()]
self.ambient_field_ut_result_vars = [StringVar(), StringVar(), StringVar()]
self.ambient_field_residual_vars = [StringVar(), StringVar(), StringVar()]
self.ambient_field_result = None # Used for saving to config file
# Contains results for coil constant calibration
self.coil_constant_vars = [StringVar(), StringVar(), StringVar()]
self.coil_constant_dev_vars = [StringVar(), StringVar(), StringVar()]
self.coil_angle_vars = [StringVar(), StringVar(), StringVar()]
self.coil_constant_raw_data = None # Used for export to csv
self.coil_constant_results = None # Used for saving to config file
row_counter = 0
@@ -612,6 +614,7 @@ class CalibrateAmbientField(Frame):
# Calibration start and save to csv buttons
start_button_frame = Frame(self.left_column)
start_button_frame.grid(row=row_counter, column=0, sticky="sw")
# TODO: Add command
self.save_ambient_calibration_button = Button(start_button_frame, text="Save results to CSV",
command=None,
state="disabled",
@@ -646,10 +649,10 @@ class CalibrateAmbientField(Frame):
# Ambient field calibration results
row_counter = 0
ambient_field_results_frame = LabelFrame(self.right_column, text="Ambient Field Results")
ambient_field_results_frame.grid(row=row_counter, column=1, padx=(100, 0), pady=20, sticky="nw")
ambient_field_results_frame.grid(row=row_counter, column=1, padx=(100, 0), pady=5, sticky="nw")
for i, label in enumerate(['X', 'Y', 'Z']):
axis_label = Label(ambient_field_results_frame, text=label)
axis_label.grid(row=0, column=i+1, padx=5, pady=5, sticky="nw")
axis_label.grid(row=0, column=i+1, padx=5, pady=(5, 0), sticky="nw")
# Ambient field value (A)
ambient_field_results_label = Label(ambient_field_results_frame, text="Ambient Field:")
ambient_field_results_label.grid(row=1, column=0, padx=5, pady=5, sticky="nw")
@@ -683,14 +686,19 @@ class CalibrateAmbientField(Frame):
axis_data.grid(row=3, column=i+1, padx=5, pady=5, sticky="nw")
ambient_field_residual_unit = Label(ambient_field_results_frame, text="\u03BCT")
ambient_field_residual_unit.grid(row=3, column=4, padx=5, pady=5, sticky="nw")
# Save calibration to config
self.ambient_field_save_results_button = Button(ambient_field_results_frame, text="Save to config and apply",
command=self.save_and_apply_ambient_calibration,
state="disabled")
self.ambient_field_save_results_button.grid(row=4, column=0, columnspan=5, padx=5, pady=5)
row_counter += 1
# Coil constant results
coil_constants_results_frame = LabelFrame(self.right_column, text="Coil Constants")
coil_constants_results_frame.grid(row=row_counter, column=1, padx=(100, 0), pady=20, sticky="nw")
coil_constants_results_frame.grid(row=row_counter, column=1, padx=(100, 0), pady=5, sticky="nw")
for i, label in enumerate(['X', 'Y', 'Z']):
axis_label = Label(coil_constants_results_frame, text=label)
axis_label.grid(row=0, column=i + 1, padx=5, pady=5, sticky="nw")
axis_label.grid(row=0, column=i + 1, padx=5, pady=(5, 0), sticky="nw")
# Coil constants
coil_constants_results_label = Label(coil_constants_results_frame, text="K:")
coil_constants_results_label.grid(row=1, column=0, padx=5, pady=5, sticky="nw")
@@ -716,7 +724,7 @@ class CalibrateAmbientField(Frame):
# Inter-axis angle labels
for i, label in enumerate(['X-Y', 'Y-Z', 'X-Z']):
axis_label = Label(coil_constants_results_frame, text=label)
axis_label.grid(row=3, column=i + 1, padx=5, pady=5, sticky="nw")
axis_label.grid(row=3, column=i + 1, padx=5, pady=0, sticky="nw")
# Inter-axis angles
coil_angles_label = Label(coil_constants_results_frame, text="Angles:")
coil_angles_label.grid(row=4, column=0, padx=5, pady=5, sticky="nw")
@@ -728,6 +736,10 @@ class CalibrateAmbientField(Frame):
axis_data.grid(row=4, column=i + 1, padx=5, pady=5, sticky="nw")
coil_angles_unit = Label(coil_constants_results_frame, text="°")
coil_angles_unit.grid(row=4, column=4, padx=5, pady=5, sticky="nw")
self.coil_constant_save_results_button = Button(coil_constants_results_frame, text="Save to config and apply",
command=self.save_and_apply_coil_constants,
state="disabled")
self.coil_constant_save_results_button.grid(row=5, column=0, columnspan=5, padx=5, pady=5)
# This starts an endless polling loop
self.update_view()
@@ -790,7 +802,9 @@ class CalibrateAmbientField(Frame):
self.ambient_field_ut_result_vars[i].set("{:.3f}".format(results['ambient_ut'][i]))
self.ambient_field_residual_vars[i].set("{:.3f}".format(results['residual'][i] * 1e6))
self.ambient_field_result = results['ambient_ut'] * 1e-6
self.save_ambient_calibration_button.configure(state='normal')
self.ambient_field_save_results_button.configure(state='normal')
def update_coil_constant_results(self, results):
for i in range(3):
@@ -803,7 +817,9 @@ class CalibrateAmbientField(Frame):
self.coil_angle_vars[2].set("{:.2f}".format(results['angle']['xz']))
self.coil_constant_raw_data = results['raw_data']
self.coil_constant_results = results['k']
self.save_k_calibration_button.configure(state='normal')
self.coil_constant_save_results_button.configure(state='normal')
def calibration_procedure_ambient(self):
try:
@@ -836,6 +852,25 @@ class CalibrateAmbientField(Frame):
for row in self.coil_constant_raw_data:
csv_writer.writerow(row)
def save_and_apply_ambient_calibration(self):
if self.ambient_field_result is not None:
ui_print("Saving ambient field calibration data")
config.edit_config("X-Axis", "ambient_field", self.ambient_field_result[0])
config.edit_config("Y-Axis", "ambient_field", self.ambient_field_result[1])
config.edit_config("Z-Axis", "ambient_field", self.ambient_field_result[2])
ui_print("Reinitializing devices...")
g.CAGE_DEVICE.reconnect_hardware() # setup everything with the defaults
def save_and_apply_coil_constants(self):
if self.coil_constant_results is not None:
ui_print("Saving coil constant calibration data")
config.edit_config("X-Axis", "coil_const", self.coil_constant_results[0])
config.edit_config("Y-Axis", "coil_const", self.coil_constant_results[1])
config.edit_config("Z-Axis", "coil_const", self.coil_constant_results[2])
ui_print("Reinitializing devices...")
g.CAGE_DEVICE.reconnect_hardware() # setup everything with the defaults
class CalibrateMagnetometer(Frame):
def __init__(self, parent, controller):