18-jun-17 20:45:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 24.91 hours . Total airflow this filter = 2.94 cubic meters . Mean BC concentration of all lamps = 284 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .672 sen(zero) = 0.021 . ref(beam) = 2.165 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 323 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 212 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .676 sen(zero) = 0.021 . ref(beam) = 2.492 ref(zero) = 0.021 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 914 ng Mean aerosol black carbon concentration = 311 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 130 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .927 sen(zero) = 0.021 . ref(beam) = 1.707 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 851 ng Mean aerosol black carbon concentration = 289 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 147 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .653 sen(zero) = 0.021 . ref(beam) = 2.167 ref(zero) = 0.021 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 827 ng Mean aerosol black carbon concentration = 281 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 395 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .289 sen(zero) = 0.021 . ref(beam) = .912 ref(zero) = 0.021 . Optical attenuation of filter deposit = 36 . Total aerosol black carbon on filter = 821 ng Mean aerosol black carbon concentration = 279 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 246 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .516 sen(zero) = 0.021 . ref(beam) = 1.106 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 762 ng Mean aerosol black carbon concentration = 259 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 293 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .877 sen(zero) = 0.021 . ref(beam) = 1.147 ref(zero) = 0.021 . Optical attenuation of filter deposit = 22 . Total aerosol black carbon on filter = 723 ng Mean aerosol black carbon concentration = 246 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 339 ppm. --- Disk space = 2.548122E+08 bytes free: One entry at every 10 minutes. There is space for 108339 hours ( 4514 days) more data --- 18-jun-17 20:45:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 18-jun-17 21:09:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.367 ref(beam) = 2.014 . Lamp 2 (470 nm): sen(beam) = 1.167 ref(beam) = 2.374 . Lamp 3 (520 nm): sen(beam) = 1.471 ref(beam) = 1.635 . Lamp 4 (590 nm): sen(beam) = .925 ref(beam) = 1.996 . Lamp 5 (660 nm): sen(beam) = .401 ref(beam) = .870 . Lamp 6 (880 nm): sen(beam) = .648 ref(beam) = 1.053 . Lamp 7 (950 nm): sen(beam) = 1.069 ref(beam) = 1.093 ---