35 lines
923 B
Python
35 lines
923 B
Python
|
import pyvisa
|
||
|
|
|
||
|
|
def scope_conn(SCOPE_ADDR):
|
||
|
|
rm = pyvisa.ResourceManager('@py')
|
||
|
|
print(rm.list_resources())
|
||
|
|
print("Attempting to connect to scope\n")
|
||
|
|
try:
|
||
|
|
# Try connect to scope
|
||
|
|
scope = rm.open_resource(SCOPE_ADDR)
|
||
|
|
except:
|
||
|
|
print(f"Error in connecting to: {SCOPE_ADDR}\n")
|
||
|
|
return 0
|
||
|
|
else:
|
||
|
|
print("Connected to scope")
|
||
|
|
return scope
|
||
|
|
|
||
|
|
def scope_init(scope):
|
||
|
|
# Initialise scope
|
||
|
|
print("Recalling set-up")
|
||
|
|
scope.write("*RCL 1")
|
||
|
|
|
||
|
|
def scope_avg_phase(scope, avg, chan):
|
||
|
|
# scope is the visa object of the oscilloscope
|
||
|
|
# avg is the number of averages to take
|
||
|
|
# chan is the channel to measure (2-4)
|
||
|
|
|
||
|
|
CHANNELS = ["MEAS:PHAS? CHAN1,CHAN2","MEAS:PHAS? CHAN1,CHAN3","MEAS:PHAS? CHAN1,CHAN4"] # array of channel IDs
|
||
|
|
phases = [] # array of phase measurements
|
||
|
|
|
||
|
|
# measure phase 'avg' number of times
|
||
|
|
for i in range(int(avg)):
|
||
|
|
p = scope.query(CHANNELS[chan-2])
|
||
|
|
p = p.replace("\n","")
|
||
|
|
phases.append(p)
|
||
|
|
return phases
|