Implemented LUT creation for mechanical probe coils.

src/nqrduck_autotm/controller.py

@@ -32,6 +32,7 @@ class AutoTMController(ModuleController):
         self.module.model.serial_data_received.connect(self.print_info)
         self.module.model.serial_data_received.connect(self.read_position_data)
         self.module.model.serial_data_received.connect(self.process_reflection_data)
+        self.module.model.serial_data_received.connect(self.process_position_sweep_result)
 
     @pyqtSlot(str, object)
     def process_signals(self, key: str, value: object) -> None:
@@ -216,7 +217,7 @@ class AutoTMController(ModuleController):
         if text.startswith("v"):
             text = text[1:].split("t")
             matching_voltage, tuning_voltage = map(float, text)
-            LUT = self.module.model.LUT
+            LUT = self.module.model.el_lut
             logger.debug("Received voltage sweep result: %s %s", matching_voltage, tuning_voltage)
             LUT.add_voltages(matching_voltage, tuning_voltage)
             self.continue_or_finish_voltage_sweep(LUT)
@@ -265,6 +266,7 @@ class AutoTMController(ModuleController):
             LUT (LookupTable): The lookup table that is being generated."""
         logger.debug("Voltage sweep finished")
         self.module.view.el_LUT_spinner.hide()
+        self.module.model.LUT = LUT
         self.module.model.voltage_sweep_stop = time.time()
         duration = self.module.model.voltage_sweep_stop - self.module.model.voltage_sweep_start
         self.module.view.add_info_text(f"Voltage sweep finished in {duration:.2f} seconds")
@@ -596,7 +598,7 @@ class AutoTMController(ModuleController):
         confirmation = self.send_command(command)
         # If the command was send successfully, we set the LUT 
         if confirmation:
-            self.module.model.LUT = LUT
+            self.module.model.el_lut = LUT
             self.module.view.create_el_LUT_spinner_dialog()
 
     def switch_to_preamp(self) -> None:
@@ -674,6 +676,7 @@ class AutoTMController(ModuleController):
         logger.debug("Homing")
         self.send_command("h")
         self.module.model.tuning_stepper.last_direction = 1
+        self.module.model.matching_stepper.last_direction = 1
 
     @pyqtSlot(str)
     def on_stepper_changed(self, stepper: str) -> None:
@@ -711,18 +714,19 @@ class AutoTMController(ModuleController):
         """Send a command to the stepper motor based on the number of steps."""
         # Here we handle backlash of the tuner
         # Determine the direction of the current steps
+        backlash = 0
         current_direction = np.sign(steps)  # This will be -1,or 1
         if stepper.TYPE == "Tuning":
             logger.debug("Stepper last direction: %s", stepper.last_direction)
             logger.debug("Current direction: %s", current_direction)
             if stepper.last_direction != current_direction:
-                steps = (abs(steps) + stepper.BACKLASH_STEPS) * current_direction
+                backlash = stepper.BACKLASH_STEPS * current_direction
 
             stepper.last_direction = current_direction
             logger.debug("Stepper last direction: %s", stepper.last_direction)
 
         motor_identifier = stepper.TYPE.lower()[0]
-        command = f"m{motor_identifier}{steps}"
+        command = f"m{motor_identifier}{steps},{backlash}"
         confirmation = self.send_command(command)
         return confirmation
 
@@ -893,6 +897,8 @@ class AutoTMController(ModuleController):
         # Lock GUI
         # self.module.view.create_mech_LUT_spinner_dialog()
 
+        self.module.model.mech_lut = LUT
+
         self.start_next_mechTM(LUT)
 
 
@@ -903,41 +909,62 @@ class AutoTMController(ModuleController):
         LUT.started_frequency = next_frequency
         logger.debug("Starting next mechanical tuning and matching:")
 
-        def get_magnitude(reflection):
-            CENTER_POINT_MAGNITUDE = 900  # mV
-            MAGNITUDE_SLOPE = 30  # dB/mV
-            return (reflection[0] - CENTER_POINT_MAGNITUDE) / MAGNITUDE_SLOPE
-
         # Now we vary the tuning capacitor position and matching capacitor position
         # Step size tuner:
         TUNER_STEP_SIZE = 20
-
         # Step size matcher:
-        MATCHER_STEP_SIZE = 5
+        MATCHER_STEP_SIZE = 50
 
-        # We read the first reflection
+        TUNING_RANGE = 60
-        last_reflection = self.read_reflection(next_frequency)
+        MATCHING_RANGE = 500
-        last_magnitude = get_magnitude(last_reflection)
 
-        # Now we tune and match our probe coil for every frequency
+        tuning_backlash = 45
-        stepper = self.module.model.tuning_stepper
+        # I'm not sure about this value ...
-        new_magnitude = 1e6 # Big
+        matching_backlash = 0
 
-        # Probably also start a frequency sweep (?)
+        # Command for the position sweep: p<frequency in MHz>t<range>,<step size>,<backlash>,<last_direction>m<range>,<step size>,<backlash>,<last_direction>"
+        tuning_last_direction = self.module.model.tuning_stepper.last_direction
+        matching_last_direction = self.module.model.matching_stepper.last_direction
+        command = f"p{next_frequency}t{TUNING_RANGE},{TUNER_STEP_SIZE},{tuning_backlash},{tuning_last_direction}m{MATCHING_RANGE},{MATCHER_STEP_SIZE},{matching_backlash},{matching_last_direction}"
 
-        while new_magnitude > last_magnitude:
+        confirmation = self.send_command(command)
-            # We move the stepper
-            last_magnitude = new_magnitude
 
-            self.on_relative_move(TUNER_STEP_SIZE, stepper)
+    @pyqtSlot(str)
+    def process_position_sweep_result(self, text):
+        if text.startswith("z"):
+            text = text[1:]
+            # Format is z<tuning_position>,<tuning_last_direction>m<matching_position>,<matching_last_direction>
+            text = text.split("m")
+            tuning_position, tuning_last_direction = map(int, text[0].split(","))
+            matching_position, matching_last_direction = map(int, text[1].split(","))
 
-            # We read the reflection
+            # Keep backlash compensation consistent
-            new_magnitude = get_magnitude(self.read_reflection(next_frequency))
+            self.module.model.tuning_stepper.last_direction = tuning_last_direction
+            self.module.model.matching_stepper.last_direction = matching_last_direction
 
-        # We move the stepper back
+            logger.debug("Tuning position: %s, Matching position: %s", tuning_position, matching_position)
-        self.on_relative_move(-TUNER_STEP_SIZE, stepper)
-        logger.debug("Tuning capacitor position: %s", stepper.position)
 
+            LUT = self.module.model.mech_lut
+            logger.debug("Received position sweep result: %s %s", matching_position, tuning_position)
+            LUT.add_positions(tuning_position, matching_position)
+            self.continue_or_finish_position_sweep(LUT)
+
+    def continue_or_finish_position_sweep(self, LUT):
+        """Continue or finish the position sweep."""
+        if LUT.is_incomplete():
+            self.start_next_mechTM(LUT)
+        else:
+            self.finish_position_sweep(LUT)
+
+    def finish_position_sweep(self, LUT):
+        """Finish the position sweep."""
+        logger.debug("Finished position sweep")
+        self.module.model.mech_lut = LUT
+        self.module.model.LUT = LUT
+        # self.module.view.create_mech_LUT_spinner_dialog()
+
+    
+    # This method isn't used anymore but it might be useful in the future so I'll keep it here
     def read_reflection(self, frequency) -> tuple:
         """Starts a reflection measurement and reads the reflection at the specified frequency."""
         # We send the command to the atm system

src/nqrduck_autotm/model.py

@@ -224,6 +224,10 @@ class MatchingStepper(Stepper):
     TYPE = "Matching"
     MAX_STEPS = 1e6
 
+    def __init__(self) -> None:
+        super().__init__()
+        self.last_direction = None
+
 class ElectricalLookupTable(LookupTable):
     TYPE = "Electrical"
 
@@ -380,6 +384,8 @@ class AutoTMModel(ModuleModel):
 
         self.el_lut = None
         self.mech_lut = None
+        self.LUT = None
+        
         self.last_reflection = None
 
     @property

src/nqrduck_autotm/resources/autotm_widget.ui

@@ -236,7 +236,7 @@
               <number>0</number>
              </property>
              <property name="maximum">
-              <number>50000</number>
+              <number>1000000</number>
              </property>
              <property name="value">
               <number>500</number>

src/nqrduck_autotm/view.py

@@ -85,6 +85,8 @@ class AutoTMView(ModuleView):
         # On clicking of the viewLUTButton call the view_lut method
         self._ui_form.viewelLUTButton.clicked.connect(self.view_el_lut)
 
+        self._ui_form.viewmechLUTButton.clicked.connect(self.view_mech_lut)
+
         # On clicking of the setvoltagesButton call the set_voltages method
         self._ui_form.setvoltagesButton.clicked.connect(
             lambda: self.module.controller.set_voltages(
@@ -372,6 +374,16 @@ class AutoTMView(ModuleView):
         self.lut_window = self.LutWindow(self.module)
         self.lut_window.show()
 
+    def view_mech_lut(self) -> None:
+        """Creates a new Dialog that shows the currently active mechanical LUT."""
+        logger.debug("View mechanical LUT")
+        if self.module.model.mech_lut is None:
+            logger.debug("No LUT available")
+            self.add_error_text("No LUT available")
+            return
+        self.lut_window = self.LutWindow(self.module)
+        self.lut_window.show()
+
     class StepperSavedPositionsWindow(QDialog):
         def __init__(self, module, parent=None):
             super().__init__(parent)
@@ -576,13 +588,20 @@ class AutoTMView(ModuleView):
             # Add vertical main layout
             main_layout = QVBoxLayout()
 
+            LUT = self.module.model.LUT
+
             # Create table widget
             self.table_widget = QTableWidget()
             self.table_widget.setColumnCount(3)
+            if LUT.TYPE == "Mechanical":
+                self.table_widget.setHorizontalHeaderLabels(
+                    ["Frequency (MHz)", "Tuning Position", "Matching Position"]
+                )
+            elif LUT.TYPE == "Electrical":
                 self.table_widget.setHorizontalHeaderLabels(
                     ["Frequency (MHz)", "Matching Voltage", "Tuning Voltage"]
                 )
-            LUT = self.module.model.LUT
+            
             for row, frequency in enumerate(LUT.data.keys()):
                 self.table_widget.insertRow(row)
                 self.table_widget.setItem(row, 0, QTableWidgetItem(str(frequency)))

src/nqrduck_autotm/widget.py

@@ -1,4 +1,4 @@
-# Form implementation generated from reading ui file '../Modules/nqrduck-autotm/src/nqrduck_autotm/resources/autotm_widget.ui'
+# Form implementation generated from reading ui file 'Modules/nqrduck-autotm/src/nqrduck_autotm/resources/autotm_widget.ui'
 #
 # Created by: PyQt6 UI code generator 6.5.1
 #
@@ -130,7 +130,7 @@ class Ui_Form(object):
         self.gridLayout_4.addWidget(self.label_20, 6, 0, 1, 1)
         self.stepsizeBox = QtWidgets.QSpinBox(parent=self.mechTab)
         self.stepsizeBox.setMinimum(0)
-        self.stepsizeBox.setMaximum(50000)
+        self.stepsizeBox.setMaximum(1000000)
         self.stepsizeBox.setProperty("value", 500)
         self.stepsizeBox.setObjectName("stepsizeBox")
         self.gridLayout_4.addWidget(self.stepsizeBox, 3, 1, 1, 1)