x =  Channel(bpm_ch  + ":X1-SIMU",                 type = 'd', alias='BPM-X')
xb = create_averager(x, 5, 0.100)
print(xb.min)
print(xb.max)
print(xb.mean)
print(xb.stdev)
print(xb.variance)
x.close()