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Davis
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JDavis misc changes
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-38
lines changed

13 files changed

+1268
-38
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‎ProberControl/config/ProberConfig.conf‎

Lines changed: 27 additions & 3 deletions
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@@ -1,17 +1,41 @@
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## Object Type
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M
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#O Model
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TL2500
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#Address
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179.29.100.100::12345
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##
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## Object Type
210
M
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#O Model
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Keysight8164B_Laser
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#Address
6-
GPIB0::1::INSTR
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GPIB0::20::INSTR
715
##
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## Object Type
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M
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#O Model
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Keysight8164B_PowerMeter
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#Address
14-
GPIB0::1::INSTR
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GPIB0::20::INSTR
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#Numbering of Channels
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1:1;2:2
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##
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##
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## Object Type
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#M
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#O Model
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#EXFOT100HP_Laser
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#Address
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#GPIB0::2::INSTR
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##
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## Object Type
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M
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#O Model
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EXFOT100_Laser
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#Address
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GPIB0::3::INSTR
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##

‎ProberControl/laserSweep1.txt‎

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##get_o_spectrum_0:
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1501.0 -43.2760465352
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##get_o_spectrum_0:
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1509.0 -36.4708130008
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##get_o_spectrum_1:
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1500.0 0.242220526355
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1501.0 0.25293050514
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1502.0 0.25293050514
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1503.0 0.25293050514
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1504.0 0.254458484579
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1505.0 0.251402465073
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1506.0 0.254458484579
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1507.0 0.260564555962
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1508.0 0.261327271114
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1509.0 0.265138363286
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##get_o_spectrum_0:
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1509.0 -36.4708130008
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##get_o_spectrum_1:
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1500.0 0.242220526355
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1501.0 0.25293050514
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1502.0 0.25293050514
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1503.0 0.25293050514
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1504.0 0.254458484579
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1505.0 0.251402465073
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1506.0 0.254458484579
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1507.0 0.260564555962
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1508.0 0.261327271114
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1509.0 0.265138363286
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‎ProberControl/prober/instruments/EXFOT100HP_Laser.py‎

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import time
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import visa
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class EXFOT100HP_Laser(object):
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'''
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This class models the EXFO T100S-HP laser. There is a
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1260-1360 nm and a 1500-1630 nm version.
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.. note:: When using any laser command, remember to send shut-off-laser command at the end of each sweep command set.
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For Trigger Sweep, send shut-off-laser command after sweep ends (sweep end condition noted in TriggerSweepSetup function)
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Note that these lasers do not have trigger inputs or outputs.
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'''
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def __init__(self, res_manager, address='GPIB0::2::INSTR'):
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'''
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Constructor method
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:param res_manager: PyVisa resource manager
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:type res_manager: PyVisa resourceManager object
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:param address: SCPI address of instrument
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:type address: string
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'''
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self.active = False
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self.gpib = res_manager.open_resource(address)
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self.gpib.write ('*IDN?')
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info = self.gpib.read()
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print ('Connection Successful: %s' % info)
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#Ensure Output is OFF
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self.gpib.write ('DISABLE')
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#Default Laser Power Unit to dBm
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self.gpib.write ('DBM')
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#Set system operation to constant power models
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self.gpib.write ('APCON')
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#Get min and max wavelengths
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self.get_min_wavelength()
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self.get_max_wavelength()
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def whoAmI(self):
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''':returns: reference to device'''
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return 'Laser'
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def change_state(self):
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if self.active == True:
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self.active = False
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else:
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self.active = True
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print 'state = ', self.active
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def get_max_wavelength(self): # Updated 9/20/2019 Jim Davis
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'''
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Queries the maximum allowed wavelength
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:returns: Float
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'''
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self.gpib.write ('L? MAX')
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self.max_wavelength = float(self.gpib.read()[2:])
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print 'Wavelength Max: ', self.max_wavelength, 'nm'
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return self.max_wavelength
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def get_min_wavelength(self): # Updated 9/20/2019 Jim Davis
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'''
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Queries the minimum allowed wavelength
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:returns: Float
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'''
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self.gpib.write ('L? MIN')
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self.min_wavelength = float(self.gpib.read()[2:])
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print 'Wavelength Min: ', self.min_wavelength, 'nm'
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return self.min_wavelength
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def setwavelength(self, wavelength):
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'''
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Loads a single wavelength and sets output on
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:param waveLength: Specified wavelength
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:type waveLength: Integer
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'''
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self.outputOFF()
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if wavelength < self.min_wavelength or wavelength > self.max_wavelength:
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print ('Specified Wavelength Out of Range: ' +str(wavelength))
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else :
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# Execute setting of wavelength
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self.gpib.write('L = ' + str(wavelength))
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print(str(wavelength))
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time.sleep(0.55)
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self.gpib.write('L?')
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info = self.gpib.read()
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print ('Wavelength Sent: %s' % info)
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#self.gpib.write('SOURCE0:CHAN1:POW:STATE 1')
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self.outputON()
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def sweepWavelengthsContinuous (self, start, end, power):
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'''
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Executes a continuous sweep, not for use with triggered PowerMeters
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:param start: Specified wavelength between 1260-1360 nm, or 1500-1630 nm
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:type start: Float
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:param end: Specified wavelength between 1260-1360 nm, or 1500-1630 nm
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:type end: Float
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:param power: Specified power for sweep
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:type power: Float
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:Note: motor_speed is calculated from end - start to be < 2 seconds
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:to avoid a timeout from PyVisa before laser scan completes
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'''
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self.outputOFF()
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# time to wait before checking OPC = operation complete bit
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sleepTime = 0.01
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# Calcualte motor speed to key scan time < 2 s
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wavelength_span = (end - start)
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max_scan_time = 2.0 #s
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#reverse ordered to make search easy
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motor_speed_list = [100,67,50,40,33,29,25,22,20,18,17,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1]
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for x in motor_speed_list:
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scan_time = wavelength_span /x
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if scan_time < max_scan_time:
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new_scan_time = scan_time
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print ' new_scan_time',new_scan_time
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print 'speed = ',
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motor_speed = wavelength_span / new_scan_time
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print 'scan motor_speed = ', motor_speed
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print 'scan_time = ', new_scan_time
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if (start < self.min_wavelength
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or start > self.max_wavelength
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or end < self.min_wavelength
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or end > self.max_wavelength
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or end <= start):
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print ('Specified Wavelengths Out of Range')
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else:
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while not self.checkOPC():
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time.sleep(sleepTime)
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else:
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self.setpower(power)
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while not self.checkOPC():
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time.sleep(sleepTime)
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else:
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self.setwavelength(start)
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while not self.checkOPC():
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time.sleep(sleepTime)
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else:
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self.gpib.write('MOTOR_SPEED ' +str(motor_speed))
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while not self.checkOPC():
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time.sleep(sleepTime)
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else:
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self.gpib.write('ACTCTRLON')
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while not self.checkOPC():
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time.sleep(sleepTime)
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else:
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self.setwavelength(end)
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print 'setwavelength(end)'
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# maximum motor speed to return
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while not self.checkOPC():
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print 'INSIDE not self.checkOPC'
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time.sleep(sleepTime)
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else:
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self.gpib.write('MOTOR_SPEED = ' + '100')
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self.gpib.write('MOTOR_SPEED?')
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print 'MOTOR_SPEED = ', self.gpib.read()
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while not self.checkOPC():
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time.sleep(sleepTime)
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else:
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self.gpib.write('ACTCTRLOFF')
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def checkOPC(self):
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# check OPC bit of STB status bit. Mask out other bits with &
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return (int(self.gpib.write ('*STB?')[0] & 1))
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def outputON(self):
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'''
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Turns output of laser source ON
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'''
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self.gpib.write('ENABLE')
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def outputOFF(self):
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'''
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Turns output of laser source OFF
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'''
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self.gpib.write('DISABLE')
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def getwavelength(self):
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'''
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Queries wavelength of the laser
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:returns: Float
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'''
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self.gpib.write('L?')
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return float(self.gpib.read()[2:])
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def setpower(self, power = 0.0 ):
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'''
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Sets power in dbm
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:param power: Specified power to set the laser to in dbm
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:type power: Float
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'''
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power = float(power)
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if (power < -6.99) or (power > 13.4):
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print 'Power setting out of -6.99 to +13.4 dBm range'
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else:
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self.gpib.write('P = ' + str(power))
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def getpower(self):
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'''
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Gets output power in dbm
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:returns: Float
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'''
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self.gpib.write('P?')
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self.power = self.gpib.read()
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print 'power read as: ', type(self.power), self.power
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if self.power[0:2] == 'P=':
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print 'Laser ENABLED'
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self.power = float(self.power[2:])
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else:
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print 'Laser DISABLED'
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self.power = 'DISABLED'
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return self.power
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def close(self):
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'''
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Release resources
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'''
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self.outputOFF()
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self.gpib.close()
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#if __name__ == "__main__":
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'''
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Copyright (C) 2017 Robert Polster
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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'''

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