from qolab.hardware.scpi import SCPIinstr from qolab.hardware.basic import BasicInstrument class Multimeter(BasicInstrument): """ Multimeter basic class. Intended to be part of the hardware aware class. """ def __init__(self, *args, **kwds): BasicInstrument.__init__(self, *args, **kwds) self.config["Device type"] = "Multimeter" self.config["Device model"] = ( "Generic Multimeter generator Without Hardware interface" ) self.config["FnamePrefix"] = "Multimeter" self.config["Device model"] = "Generic Multimeter Without Hardware interface" self.config["FnamePrefix"] = "multimeter" self.deviceProperties.update({}) # Minimal set of methods to be implemented. def getVdc(self): """Report DC Voltage""" print("getVdc is not implemented") return None def getVac(self): """Report AC Voltage""" print("getVac is not implemented") return None def getAdc(self): """Report DC Current""" print("getAdc is not implemented") return None def getAac(self): """Report AC Current""" print("getAac is not implemented") return None def getResistance(self): """Report Resistance""" print("getResistance is not implemented") return None def getResistance4Wires(self): """Report Resistance with 4 wire method""" print("getResistance4Wires is not implemented") return None def getDiode(self): """Report Diode Voltage drop""" print("getDiode is not implemented") return None def getFreq(self): """Report Frequency""" print("getFreq is not implemented") return None class MultimeterSCPI(SCPIinstr, Multimeter): """ SCPI enabled basic multimeter. Intended to be part of the hardware aware class. Example ------- >>> rm = pyvisa.ResourceManager() >>> MultimeterSCPI(rm.open_resource('TCPIP::192.168.0.2::INSTR')) """ pass def __init__(self, resource, *args, **kwds): SCPIinstr.__init__(self, resource) Multimeter.__init__(self, *args, **kwds) self.config["DeviceId"] = str.strip(self.idn)