17-jun-17 19:25:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 23.41 hours . Total airflow this filter = 2.74 cubic meters . Mean BC concentration of all lamps = 319 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .671 sen(zero) = 0.021 . ref(beam) = 2.181 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 952 ng Mean aerosol black carbon concentration = 348 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 202 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .661 sen(zero) = 0.021 . ref(beam) = 2.509 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 945 ng Mean aerosol black carbon concentration = 345 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 130 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .906 sen(zero) = 0.021 . ref(beam) = 1.698 ref(zero) = 0.021 . Optical attenuation of filter deposit = 49 . Total aerosol black carbon on filter = 887 ng Mean aerosol black carbon concentration = 324 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 141 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .637 sen(zero) = 0.021 . ref(beam) = 2.169 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 863 ng Mean aerosol black carbon concentration = 315 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 338 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .282 sen(zero) = 0.021 . ref(beam) = .916 ref(zero) = 0.021 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 867 ng Mean aerosol black carbon concentration = 316 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 199 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .506 sen(zero) = 0.021 . ref(beam) = 1.100 ref(zero) = 0.021 . Optical attenuation of filter deposit = 27 . Total aerosol black carbon on filter = 826 ng Mean aerosol black carbon concentration = 302 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 248 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .863 sen(zero) = 0.021 . ref(beam) = 1.146 ref(zero) = 0.021 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 785 ng Mean aerosol black carbon concentration = 287 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 286 ppm. --- Disk space = 2.548736E+08 bytes free: One entry at every 10 minutes. There is space for 108365 hours ( 4515 days) more data --- 17-jun-17 19:25:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 17-jun-17 19:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.391 ref(beam) = 2.135 . Lamp 2 (470 nm): sen(beam) = 1.185 ref(beam) = 2.492 . Lamp 3 (520 nm): sen(beam) = 1.493 ref(beam) = 1.711 . Lamp 4 (590 nm): sen(beam) = .943 ref(beam) = 2.098 . Lamp 5 (660 nm): sen(beam) = .407 ref(beam) = .910 . Lamp 6 (880 nm): sen(beam) = .656 ref(beam) = 1.099 . Lamp 7 (950 nm): sen(beam) = 1.082 ref(beam) = 1.136 ---