class MyForm(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_mainWindow()
self.ui.setupUi(self)
self.timer = QtCore.QTimer()
#initialize objects
self.connection = Connection()
self.air_meter = Meter(self.connection)
self.fuel_meter = Meter(self.connection)
self.air = Air()
self.fuel = Fuel()
self.burner = Burner()
self.flow = Flow(self.air_meter, self.fuel_meter, self.air, self.fuel, self.burner)
self.record = Record(self.flow, self.ui)
self.update_thread = Update_thread(self.air_meter,self.fuel_meter)
self.switchedMode = False
self.Re_setPoint = 0
self.TotalMass_setPoint = 0
self.airSLPM_setPoint = 0
self.fuelSLPM_setPoint = 0
self.phi_setPoint = 0
self.Re_step = 5
self.TotalMass_step = 0.1
self.phi_step = 0.1
self.airSLPM_step = 0.1
self.fuelSLPM_step = 0.1
self.ui.dial_flowRate_Air_incr.setTracking(False)
self.ui.dial_flowRate_Fuel_incr.setTracking(False)
self.signal_from_button = False
self.control_enabled = False
self.doneIgniting = False
self.SI_to_displayUnits = 60000 # Kg/s -> g/min
# here we connect signals with our slots
QtCore.QObject.connect(self.ui.Button_flowrate_Air_up,QtCore.SIGNAL("clicked()"), self.Button_A_Up)
QtCore.QObject.connect(self.ui.Button_flowrate_Air_down,QtCore.SIGNAL("clicked()"), self.Button_A_Down)
QtCore.QObject.connect(self.ui.Button_flowrate_Fuel_up,QtCore.SIGNAL("clicked()"), self.Button_B_Up)
QtCore.QObject.connect(self.ui.Button_flowrate_Fuel_down,QtCore.SIGNAL("clicked()"), self.Button_B_Down)
QtCore.QObject.connect(self.ui.button_openCloseSerial,QtCore.SIGNAL("clicked()"), self.openCloseSerial)
QtCore.QObject.connect(self.ui.pushButton_apply_all_settings,QtCore.SIGNAL("clicked()"), self.apply_all_settings)
QtCore.QObject.connect(self.ui.button_reset,QtCore.SIGNAL("clicked()"), self.reset_meters)
QtCore.QObject.connect(self.ui.button_record_set,QtCore.SIGNAL("clicked()"), self.add_record)
QtCore.QObject.connect(self.ui.button_new_record_set,QtCore.SIGNAL("clicked()"), self.new_record_set)
QtCore.QObject.connect(self.ui.delete_record_button,QtCore.SIGNAL("clicked()"), self.delete_record)
QtCore.QObject.connect(self.ui.pushButton_start,QtCore.SIGNAL("clicked()"), self.start_update)
QtCore.QObject.connect(self.update_thread,QtCore.SIGNAL("update_ui()"), self.update_meter_data)
QtCore.QObject.connect(self.ui.pushButton_save_button,QtCore.SIGNAL("clicked()"), self.record.save_to_file)
QtCore.QObject.connect(self.ui.button_abort,QtCore.SIGNAL("clicked()"), self.abort)
QtCore.QObject.connect(self.ui.button_ignition,QtCore.SIGNAL("clicked()"), self.ignition_set_point)
QtCore.QObject.connect(self.ui.pushButton_clear_records,QtCore.SIGNAL("clicked()"), self.record.clear_records)
self.ui.record_list.itemSelectionChanged.connect(self.item_selected)
self.ui.dial_flowRate_Air_incr.valueChanged.connect(self.SLPM_Air_slide)
self.ui.dial_flowRate_Fuel_incr.valueChanged.connect(self.SLPM_Fuel_slide)
self.ui.comboBox_fuel.currentIndexChanged.connect(self.fuel_changed)
QtCore.QObject.connect(self.ui.radioButton_re_phi,QtCore.SIGNAL("toggled(bool)"),self.switchControlMode)
QtCore.QObject.connect(self.ui.radioButton_air_fuel_SLPM,QtCore.SIGNAL("toggled(bool)"),self.switchControlMode)
QtCore.QObject.connect(self.ui.flowrate_Air_incr,QtCore.SIGNAL("valueChanged(double)"),self.update_step)
QtCore.QObject.connect(self.ui.flowrate_Fuel_incr,QtCore.SIGNAL("valueChanged(double)"),self.update_step)
def fuel_changed(self):
if self.ui.comboBox_fuel.currentText() == 'CH4':
#self.ui.lineEdit_fuel_name.setValue('CH4')
self.ui.lineEdit_fuel_viscosity.setText('1.0997e-5')
self.ui.lineEdit_fuel_density.setText('0.6569')
self.ui.lineEdit_fuel_A_F.setText('17.195')
self.ui.lineEdit_fuel_SCP.setText('55.5')
self.ui.lineEdit_fuel_molweight.setText('16.044')
self.ui.lineEdit_fuel_gas_ID.setText('2')
elif self.ui.comboBox_fuel.currentText() == 'C3H8':
#self.ui.lineEdit_fuel_name.setValue('C3H8')
self.ui.lineEdit_fuel_viscosity.setText('8.01e-5')
self.ui.lineEdit_fuel_density.setText('1.8316')
self.ui.lineEdit_fuel_A_F.setText('15.246')
self.ui.lineEdit_fuel_SCP.setText('50.35')
self.ui.lineEdit_fuel_molweight.setText('44.10')
self.ui.lineEdit_fuel_gas_ID.setText('12')
def item_selected(self):
print 'signal'
self.record.set_current_record()
def start_update(self):
if not self.update_thread.isRunning:
self.update_thread.isRunning = True
self.update_thread.start()
self.ui.pushButton_start.setText('Stop')
#self.ui.pushButton_start.setDown(True)
else:
self.update_thread.isRunning = False
self.ui.pushButton_start.setText('Run')
#self.ui.pushButton_start.setDown(False)
def add_record(self):
self.record.add_record()
def new_record_set(self):
self.record.new_record_set()
def delete_record(self):
self.record.delete_record()
def apply_all_settings(self):
if self.ui.pushButton_apply_all_settings.isEnabled():
self.setMixtureSettings()
self.set_meters_settings()
self.set_burner_settings()
self.ui.button_openCloseSerial.setEnabled(True)
else:
message = QtGui.QMessageBox.information(self,'Warning!','Before aplly changes, RESET the meter and CLOSE the connection.')
def enable_control_ui(self, state):
if not self.control_enabled:
self.control_enabled = state
self.ui.button_reset.setEnabled(state)
self.ui.button_ignition.setEnabled(state)
self.ui.button_abort.setEnabled(state)
self.ui.pushButton_start.setEnabled(state)
self.ui.button_record_set.setEnabled(state)
self.ui.Button_flowrate_Air_up.setEnabled(state)
self.ui.Button_flowrate_Air_down.setEnabled(state)
self.ui.dial_flowRate_Air_incr.setEnabled(state)
self.ui.Button_flowrate_Fuel_up.setEnabled(state)
self.ui.Button_flowrate_Fuel_down.setEnabled(state)
self.ui.dial_flowRate_Fuel_incr.setEnabled(state)
def setMixtureSettings(self):
# air
self.air.din_viscosity = float(self.ui.lineEdit_air_viscosity.text())
self.air.density = float(self.ui.lineEdit_air_density.text())
self.air.molecular_weight = float(self.ui.lineEdit_air_molweight.text())
# fuel
self.fuel.fuel_name = self.ui.comboBox_fuel.currentText()
self.fuel.din_viscosity = float(self.ui.lineEdit_fuel_viscosity.text())
self.fuel.density = float(self.ui.lineEdit_fuel_density.text())
self.fuel.A_F = float(self.ui.lineEdit_fuel_A_F.text())
self.fuel.SCP = float(self.ui.lineEdit_fuel_SCP.text())
self.fuel.molecular_weight = float(self.ui.lineEdit_fuel_molweight.text())
def set_meters_settings(self):
self.connection.port = str(self.ui.input_connection_port.text())
self.connection.baudrate = 19200
self.connection.timeout = 0.1
fuel_ID = self.ui.input_fuelControllerID.text()
max_fuel_meter = self.ui.input_fuelControllerMaxCapac.text()
air_ID = self.ui.input_airControllerID.text()
max_air_meter = self.ui.input_airControllerMaxCapac.text()
self.fuel_meter.set_meter_settings(fuel_ID,max_fuel_meter,float(self.ui.lineEdit_fuel_gas_ID.text()))
self.air_meter.set_meter_settings(air_ID,max_air_meter,0)
def set_burner_settings(self):
self.burner.dim_a = float(self.ui.input_burnerDim_a.text())
self.burner.dim_b = float(self.ui.input_burnerDim_b.text())
self.burner.no_holes = int(self.ui.input_burnerDim_no.text())
self.burner.isHole = self.ui.radio_button_burnerHoles.isChecked()
def update_meter_data(self):
if self.ui.radioButton_re_phi.isChecked():
self.ui.lcd_flowrate_Air.display(self.flow.get_Reynolds_flow())
self.ui.lcd_flowrate_Fuel.display(self.flow.get_phi_flow())
elif self.ui.radioButton_massflow.isChecked():
self.ui.lcd_flowrate_Air.display(self.flow.get_totalMassFlow() * self.SI_to_displayUnits)
self.ui.lcd_flowrate_Fuel.display(self.flow.get_phi_flow())
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.ui.lcd_flowrate_Air.display(self.flow.get_airSLPMFlow())
self.ui.lcd_flowrate_Fuel.display(self.flow.get_fuelSLPMFlow())
self.ui.lcd_pressure_Air.display(self.air_meter.get_pressure())
## self.ui.progressBar_pressure
self.ui.lcd_temperature_Air.display(self.air_meter.get_temperature())
## self.ui.progressBar_temperature
self.ui.lcd_mean_velocity.display(self.flow.get_mean_velocity())
self.ui.lcd_power.display(self.flow.get_power())
def switchControlMode(self):
self.switchedMode = True
self.update_setPoints()
if self.ui.radioButton_re_phi.isChecked():
self.ui.label_flowRate_A_mode.setText('Re')
self.ui.label_18.setText('Re set point')
self.ui.label_flowRate_B_mode.setText('phi')
self.ui.label_19.setText('phi set point')
self.ui.lcd_flowRate_setPoint_Air.display(self.Re_setPoint)
self.ui.lcd_flowRate_setPoint_Fuel.display(self.phi_setPoint)
self.ui.flowrate_Air_incr.setDecimals(1)
self.ui.flowrate_Air_incr.setSingleStep(5)
self.ui.flowrate_Air_incr.setValue(self.Re_step)
self.ui.flowrate_Fuel_incr.setDecimals(2)
self.ui.flowrate_Fuel_incr.setSingleStep(0.1)
self.ui.flowrate_Fuel_incr.setValue(self.phi_step)
elif self.ui.radioButton_massflow.isChecked():
self.ui.label_flowRate_A_mode.setText('total Mass Flow g/min')
self.ui.label_18.setText('g/min set point')
self.ui.label_flowRate_B_mode.setText('phi')
self.ui.label_19.setText('phi set point')
self.ui.lcd_flowRate_setPoint_Air.display(self.TotalMass_setPoint)
self.ui.lcd_flowRate_setPoint_Fuel.display(self.phi_setPoint)
self.ui.flowrate_Air_incr.setDecimals(2)
self.ui.flowrate_Air_incr.setSingleStep(0.1)
self.ui.flowrate_Air_incr.setValue(self.TotalMass_step)
self.ui.flowrate_Fuel_incr.setDecimals(2)
self.ui.flowrate_Fuel_incr.setSingleStep(0.1)
self.ui.flowrate_Fuel_incr.setValue(self.phi_step)
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.ui.label_flowRate_A_mode.setText('air SLPM')
self.ui.label_18.setText('SLPM set point')
self.ui.label_flowRate_B_mode.setText('fuel SLPM')
self.ui.label_19.setText('SLPM set point')
self.ui.lcd_flowRate_setPoint_Air.display(self.airSLPM_setPoint)
self.ui.lcd_flowRate_setPoint_Fuel.display(self.fuelSLPM_setPoint)
self.ui.flowrate_Air_incr.setDecimals(2)
self.ui.flowrate_Air_incr.setSingleStep(0.1)
self.ui.flowrate_Air_incr.setValue(self.airSLPM_step)
self.ui.flowrate_Fuel_incr.setDecimals(2)
self.ui.flowrate_Fuel_incr.setSingleStep(0.1)
self.ui.flowrate_Fuel_incr.setValue(self.fuelSLPM_step)
self.switchedMode = False
def update_step(self):
if not self.switchedMode:
print 'update step'
A_step = float(self.ui.flowrate_Air_incr.value())
B_step = float(self.ui.flowrate_Fuel_incr.value())
if self.ui.radioButton_re_phi.isChecked():
self.Re_step = A_step
self.phi_step = B_step
elif self.ui.radioButton_massflow.isChecked():
self.TotalMass_step = A_step
self.phi_step = B_step
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.airSLPM_step = A_step
self.fuelSLPM_step = B_step
def update_setPoints(self):
if self.ui.radioButton_re_phi.isChecked():
self.Re_setPoint = self.flow.convert_massFlow_to_Reynolds(self.flow.get_totalMassFlow_setPoint())
self.phi_setPoint = self.flow.get_phi_setPoint()
self.ui.lcd_flowRate_setPoint_Air.display(self.Re_setPoint)
self.ui.lcd_flowRate_setPoint_Fuel.display(self.phi_setPoint)
elif self.ui.radioButton_massflow.isChecked():
self.TotalMass_setPoint = self.flow.get_totalMassFlow_setPoint() * self.SI_to_displayUnits
self.phi_setPoint = self.flow.get_phi_setPoint()
self.ui.lcd_flowRate_setPoint_Air.display(self.TotalMass_setPoint)
self.ui.lcd_flowRate_setPoint_Fuel.display(self.phi_setPoint)
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.airSLPM_setPoint = self.air_meter.get_setPoint_SLPM()
self.fuelSLPM_setPoint = self.fuel_meter.get_setPoint_SLPM()
self.ui.lcd_flowRate_setPoint_Air.display(self.airSLPM_setPoint)
self.ui.lcd_flowRate_setPoint_Fuel.display(self.fuelSLPM_setPoint)
air_meter_capacity = self.air_meter.meter_capacity()
fuel_meter_capacity = self.fuel_meter.meter_capacity()
self.ui.progressBar_air_meter_scale.setValue(air_meter_capacity)
self.ui.progressBar_fuel_meter_scale.setValue(fuel_meter_capacity)
if self.signal_from_button:
self.ui.dial_flowRate_Air_incr.setValue(self.air_meter.get_setPoint_percent())
self.ui.dial_flowRate_Fuel_incr.setValue(self.fuel_meter.get_setPoint_percent())
time.sleep(.01)
self.signal_from_button = False
def SLPM_Air_slide(self):
if not self.signal_from_button:
self.air_meter.set_setPoint_percent(self.ui.dial_flowRate_Air_incr.value())
self.update_setPoints()
def SLPM_Fuel_slide(self):
if not self.signal_from_button:
self.fuel_meter.set_setPoint_percent(self.ui.dial_flowRate_Fuel_incr.value())
self.update_setPoints()
def Button_A_Up(self):
self.signal_from_button = True
if self.ui.radioButton_re_phi.isChecked():
self.Re_Up()
elif self.ui.radioButton_massflow.isChecked():
self.TotalMass_Up()
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.airSLPM_Up()
def Button_A_Down(self):
self.signal_from_button = True
if self.ui.radioButton_re_phi.isChecked():
self.Re_Down()
elif self.ui.radioButton_massflow.isChecked():
self.TotalMass_Down()
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.airSLPM_Down()
def Button_B_Up(self):
self.signal_from_button = True
if self.ui.radioButton_re_phi.isChecked() or self.ui.radioButton_massflow.isChecked():
self.phi_Up()
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.fuelSLPM_Up()
def Button_B_Down(self):
self.signal_from_button = True
if self.ui.radioButton_re_phi.isChecked() or self.ui.radioButton_massflow.isChecked():
self.phi_Down()
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.fuelSLPM_Down()
def Re_Up(self):
if not self.air_meter.at_max:
self.flow.set_Reynolds_flow(self.Re_setPoint + self.Re_step)
self.update_setPoints()
def Re_Down(self):
self.flow.set_Reynolds_flow(self.Re_setPoint - self.Re_step)
self.update_setPoints()
def TotalMass_Up(self):
if not self.air_meter.at_max:
self.flow.set_totalMassFlow(( self.TotalMass_setPoint + self.TotalMass_step ) / self.SI_to_displayUnits )
self.update_setPoints()
def TotalMass_Down(self):
self.flow.set_totalMassFlow(( self.TotalMass_setPoint - self.TotalMass_step ) / self.SI_to_displayUnits )
self.update_setPoints()
def phi_Up(self):
if not self.air_meter.at_max:
self.flow.set_phi_flow(self.phi_setPoint + self.phi_step)
self.update_setPoints()
def phi_Down(self):
self.flow.set_phi_flow(self.phi_setPoint - self.phi_step)
self.update_setPoints()
def airSLPM_Up(self):
self.flow.set_airSLPMFlow(self.airSLPM_setPoint + self.airSLPM_step)
self.update_setPoints()
def airSLPM_Down(self):
self.flow.set_airSLPMFlow(self.airSLPM_setPoint - self.airSLPM_step)
self.update_setPoints()
def fuelSLPM_Up(self):
if not self.air_meter.at_max:
self.flow.set_fuelSLPMFlow(self.fuelSLPM_setPoint + self.fuelSLPM_step)
self.update_setPoints()
def fuelSLPM_Down(self):
self.flow.set_fuelSLPMFlow(self.fuelSLPM_setPoint - self.fuelSLPM_step)
self.update_setPoints()
def reset_meters(self):
print 'Reseting flowmeters'
# Air
self.air_meter.set_setPoint_SLPM(0)
# Fuel
self.fuel_meter.set_setPoint_SLPM(0)
self.update_setPoints()
if not self.update_thread.isRunning:
self.air_meter.update_meter()
self.fuel_meter.update_meter()
self.update_meter_data()
def closeEvent(self,Event):
if self.connection.isOpen():
self.reset_meters()
time.sleep(.5)
print 'Exiting GUI and closing all ports and threads'
self.update_thread.isRunning = False
self.connection.close()
def abort(self):
print 'Abort:: air meter full open and fuel meter closed'
self.air_meter.set_setPoint_percent(100)
self.fuel_meter.set_setPoint_percent(0)
self.update_setPoints()
def ignition_set_point(self):
if not self.doneIgniting:
self.flow.set_totalMassFlow(float(self.ui.ignition_massflow_set_point.text()) / self.SI_to_displayUnits)
self.flow.set_phi_flow(float(self.ui.ignition_phi_set_point.text()))
self.ui.lcd_flowRate_setPoint_Air.display('-')
self.ui.lcd_flowRate_setPoint_Fuel.display('-')
self.ui.button_ignition.setText('Stop Igniting')
self.ui.button_ignition.setDown(True)
self.doneIgniting = True
else:
print 'ignition finished'
self.ui.button_ignition.setText('Ignition')
self.ui.button_ignition.setDown(False)
if self.ui.radioButton_re_phi.isChecked():
self.flow.set_Reynolds_flow(self.Re_setPoint)
self.flow.set_phi_flow(self.phi_setPoint)
elif self.ui.radioButton_massflow.isChecked():
self.flow.set_totalMassFlow(self.TotalMass_setPoint)
self.flow.set_phi_flow(self.phi_setPoint)
elif self.ui.radioButton_air_fuel_SLPM.isChecked():
self.flow.set_airSLPMFlow(self.airSLPM_setPoint)
self.flow.set_fuelSLPMFlow(self.fuelSLPM_setPoint)
self.update_setPoints()
self.doneIgniting = False
def openCloseSerial(self):
if self.connection.isOpen() == False:
self.connection.open()
self.fuel_meter.setup_meter()
#change button message do "close connection"
self.ui.button_openCloseSerial.setText("Close connection")
self.ui.pushButton_apply_all_settings.setEnabled(False)
else:
self.reset_meters()
time.sleep(.1)
self.connection.close()
#change button message do "close open"
self.ui.button_openCloseSerial.setText("Open connection")
self.ui.pushButton_apply_all_settings.setEnabled(True)
print self.connection
if not self.control_enabled:
self.enable_control_ui(True)
else:
self.enable_control_ui(False)
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_mainWindow()
self.ui.setupUi(self)
self.timer = QtCore.QTimer()
#initialize objects
self.connection = Connection()
self.air_meter = Meter(self.connection)
self.fuel_meter = Meter(self.connection)
self.air = Air()
self.fuel = Fuel()
self.burner = Burner()
self.flow = Flow(self.air_meter, self.fuel_meter, self.air, self.fuel, self.burner)
self.record = Record(self.flow, self.ui)
self.update_thread = Update_thread(self.air_meter,self.fuel_meter)
self.switchedMode = False
self.Re_setPoint = 0
self.TotalMass_setPoint = 0
self.airSLPM_setPoint = 0
self.fuelSLPM_setPoint = 0
self.phi_setPoint = 0
self.Re_step = 5
self.TotalMass_step = 0.1
self.phi_step = 0.1
self.airSLPM_step = 0.1
self.fuelSLPM_step = 0.1
self.ui.dial_flowRate_Air_incr.setTracking(False)
self.ui.dial_flowRate_Fuel_incr.setTracking(False)
self.signal_from_button = False
self.control_enabled = False
self.doneIgniting = False
self.SI_to_displayUnits = 60000 # Kg/s -> g/min
# here we connect signals with our slots
QtCore.QObject.connect(self.ui.Button_flowrate_Air_up,QtCore.SIGNAL("clicked()"), self.Button_A_Up)
QtCore.QObject.connect(self.ui.Button_flowrate_Air_down,QtCore.SIGNAL("clicked()"), self.Button_A_Down)
QtCore.QObject.connect(self.ui.Button_flowrate_Fuel_up,QtCore.SIGNAL("clicked()"), self.Button_B_Up)
QtCore.QObject.connect(self.ui.Button_flowrate_Fuel_down,QtCore.SIGNAL("clicked()"), self.Button_B_Down)
QtCore.QObject.connect(self.ui.button_openCloseSerial,QtCore.SIGNAL("clicked()"), self.openCloseSerial)
QtCore.QObject.connect(self.ui.pushButton_apply_all_settings,QtCore.SIGNAL("clicked()"), self.apply_all_settings)
QtCore.QObject.connect(self.ui.button_reset,QtCore.SIGNAL("clicked()"), self.reset_meters)
QtCore.QObject.connect(self.ui.button_record_set,QtCore.SIGNAL("clicked()"), self.add_record)
QtCore.QObject.connect(self.ui.button_new_record_set,QtCore.SIGNAL("clicked()"), self.new_record_set)
QtCore.QObject.connect(self.ui.delete_record_button,QtCore.SIGNAL("clicked()"), self.delete_record)
QtCore.QObject.connect(self.ui.pushButton_start,QtCore.SIGNAL("clicked()"), self.start_update)
QtCore.QObject.connect(self.update_thread,QtCore.SIGNAL("update_ui()"), self.update_meter_data)
QtCore.QObject.connect(self.ui.pushButton_save_button,QtCore.SIGNAL("clicked()"), self.record.save_to_file)
QtCore.QObject.connect(self.ui.button_abort,QtCore.SIGNAL("clicked()"), self.abort)
QtCore.QObject.connect(self.ui.button_ignition,QtCore.SIGNAL("clicked()"), self.ignition_set_point)
QtCore.QObject.connect(self.ui.pushButton_clear_records,QtCore.SIGNAL("clicked()"), self.record.clear_records)
self.ui.record_list.itemSelectionChanged.connect(self.item_selected)
self.ui.dial_flowRate_Air_incr.valueChanged.connect(self.SLPM_Air_slide)
self.ui.dial_flowRate_Fuel_incr.valueChanged.connect(self.SLPM_Fuel_slide)
self.ui.comboBox_fuel.currentIndexChanged.connect(self.fuel_changed)
QtCore.QObject.connect(self.ui.radioButton_re_phi,QtCore.SIGNAL("toggled(bool)"),self.switchControlMode)
QtCore.QObject.connect(self.ui.radioButton_air_fuel_SLPM,QtCore.SIGNAL("toggled(bool)"),self.switchControlMode)
QtCore.QObject.connect(self.ui.flowrate_Air_incr,QtCore.SIGNAL("valueChanged(double)"),self.update_step)
QtCore.QObject.connect(self.ui.flowrate_Fuel_incr,QtCore.SIGNAL("valueChanged(double)"),self.update_step)