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from qolab.hardware.lockin import LockinSCPI
class SRS_SR865A(LockinSCPI):
""" SRS SR865A lockin """
def __init__(self, resource):
super().__init__(resource)
self.config['Device model']='SRS SR865A'
self.resource.read_termination='\n'
self.deviceProperties.extend(['TimeBaseMode'])
def getFreqInt(self):
qstr = f'FreqInt?'
rstr = self.query(qstr)
return(float(rstr))
def setFreqInt(self, freq):
cstr = f'FreqInt {freq}'
rstr = self.write(cstr)
# this one has only getter
def getFreqExt(self):
qstr = f'FreqExt?'
rstr = self.query(qstr)
return(float(rstr))
def getHarm(self):
qstr = f'Harm?'
rstr = self.query(qstr)
return(int(rstr))
def setHarm(self, harm):
cstr = f'Harm {harm}'
rstr = self.write(cstr)
def getSinAmpl(self):
qstr = f'SLVL?'
rstr = self.query(qstr)
return(float(rstr))
def setSinAmpl(self, ampl):
cstr = f'SLVL {ampl}'
rstr = self.write(cstr)
def getSinOffset(self):
qstr = f'SOFF?'
rstr = self.query(qstr)
return(float(rstr))
def setSinOffset(self, offset):
cstr = f'SOFF {offset}'
rstr = self.write(cstr)
def getSensetivity(self):
return(int(self.query(f'SCAL?')))
def setSensetivity(self, val):
rstr = self.write(f'SCAL {val}')
def getTimeConstan(self):
return(int(self.query(f'OFLT?')))
def setTimeConstan(self, val):
rstr = self.write(f'OFLT {val}')
def getFilterSlope(self):
return(int(self.query(f'OFSL?')))
def setFilterSlope(self, val):
rstr = self.write(f'OFSL {val}')
# this one has only getter
def getEquivalentFileterBW(self):
return(float(self.query(f'ENBW?')))
def getTimeBaseMode(self):
return(int(self.query(f'TBMODE?')))
def setTimeBaseMode(self, val):
rstr = self.write(f'TBMODE {val}')
def getRefPhase(self):
return(float(self.query(f'PHAS?')))
def setRefPhase(self, val):
rstr = self.write(f'PHAS {val}')
if __name__ == '__main__':
import pyvisa
print("testing")
rm = pyvisa.ResourceManager()
print(rm.list_resources())
instr=rm.open_resource('TCPIP::192.168.0.51::INSTR')
lockin = SRS_SR865A(instr)
print('------ Header start -------------')
print(str.join('\n', lockin.getHeader()))
print('------ Header ends -------------')
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